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i3-8350k impressions

Wanted to jump on the Coffee Lake bandwagon, but 8700k's were nowhere to be seen apart from one place looking to rape your wallet. 8600k wasn't that much better, so in the end I got the 8350k to play with. At 4c4t I thought it might make cooling easier for some heavy overclocking fun.

 

I got the Asrock Z370 Pro4 as the cheapest non-MSI mobo. Cooling I went all out, and got the Noctua D15 (I find AIOs more pain to use when tinkering). Ram is Corsair, I think it is part of their Vengeance series rated on the box at 2800 but the XMP include a 3000 profile which I'm using.

 

8350k.thumb.jpg.144b88a858625f57a199902251adadf8.jpg

 

Ok, not the best photo or setup, but it is enough to run. Oh, in case anyone is curious, the GPU is only there to get things going (in case the built in GPU affects CPU bench results). It's an R7 260X and the original cooler died so I replaced it with a Wraith that came with my R5 1600.

 

Don't like the bios but I am more used to Asus. voltage adjustments can be made either fixed or offset, but it doesn't give much of a clue where I'm starting from. At least I've not found a software tool that can read it in Windows, other than the VID.

 

I started using hwbot last weekend, and it seems no one else has started populating results for this CPU yet. Just to get a CPU-Z clock logged, I managed to get a submission at just over 5.1 GHz, but it was only just stable enough to do that and nothing else.

 

Backing down to 5.0 GHz, I thought I'd try and stabilise it for some other benches. It took +275mV offset to get it to pass Cinebench 15, eventually scoring a best of 848. I also threw in a R11.5 run before I called it a night. These benchmarks will not be its strength area due to lack of HT.

 

Reported VID during that exceeded 1.5V! Temps were ok still, reaching a logged peak of 78C.

 

I'm more interested in some other single thread benchmarks later... at some point I also will try a delid to see what that does to temps.

 

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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Seems like a bit of a beast at 5ghz.. how much did it cost you for the cpu and the board?

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5 minutes ago, RKRiley said:

Seems like a bit of a beast at 5ghz.. how much did it cost you for the cpu and the board?

Yeah it's basically just a 7600k for like $50 cheaper. Neat. 


Main System: EVGA GTX 1080 SC, i7 8700, 16GB DDR4 Corsair LPX 3000mhz CL15, Asus Z370 Prime A, Noctua NH D15, EVGA GQ 650W, Fractal Design Define R5, 2TB Seagate Barracuda, 500gb Samsung 850 Evo
Secondary System: EVGA GTX 780ti SC, i5 3570k @ 4.5ghz, 16gb DDR3 1600mhz, MSI Z77 G43, Noctua NH D15, EVGA GQ 650W, Fractal Design Define R4, 3TB WD Caviar Blue, 250gb Samsung 850 Evo
 
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1 minute ago, RKRiley said:

Seems like a bit of a beast at 5ghz.. how much did it cost you for the cpu and the board?

Without looking it up exactly, near enough £120 for mobo, £170 for CPU, plus postage. That sounds about right, it was near enough 300 total, and I stole the rest of the bits from my Ryzen 1600 system to get it running fast :D Apart from the cooler, that's new too.

 

Do note at my 5 GHz settings, I'm not sure how many volts I'm pumping through it, but I'm pretty sure it is more than anyone would want to run a 24/7 OC at.

 

Forgot to link earlier, my hwbot http://hwbot.org/user/mackerel/ where I'll probably add benchmark submissions over the weekend.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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I thought about getting one of these until I saw they're only $5 less than an i5 8400...I'll definitely be taking the extra cores.

CPU: Ryzen 9 5900 Cooler: EVGA CLC280 Motherboard: Gigabyte B550i Pro AX RAM: Kingston Hyper X 32GB 3200mhz

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CPU: Intel i3 4160 Cooler: Integrated Motherboard: Integrated

RAM: G.Skill RipJaws 16GB DDR3 Storage: Transcend MSA370 128GB GPU: Intel 4400 Graphics

PSU: Integrated Case: Shuttle XPC Slim

Monitor: LG 29WK500 Mouse: G.Skill MX780 Keyboard: G.Skill KM780 Cherry MX Red

 

Budget Rig 1 - Sold For $750 Profit

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RAM: Crucial LPX 16GB DDR4 Storage: Intel S3510 800GB GPU: Nvidia GTX 980

PSU: Corsair CX650M Case: EVGA DG73

Monitor: LG 29WK500 Mouse: G.Skill MX780 Keyboard: G.Skill KM780 Cherry MX Red

 

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CPU: Intel i5 4690k Cooler: Corsair H100i V2 Motherboard: MSI Z97i AC ITX

RAM: Crucial Ballistix 16GB DDR3 Storage: Kingston Fury 240GB GPU: Asus Strix GTX 970

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Monitor: Dell P2214H x2 Mouse: Logitech MX Master Keyboard: G.Skill KM780 Cherry MX Red

 

 

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Just now, dizmo said:

I thought about getting one of these until I saw they're only $5 less than an i5 8400...I'll definitely be taking the extra cores.

I thought about it too... depends on use case. I'm looking at this as overclocking fun. I really want the 8700k but I think until supply actually exists in quantity it is just an excuse for sellers to mug you.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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Been busy doing benchmarks. Apart from the pure clock run, everything was run at 5 GHz, and I didn't seriously bother to optimise the results. Just wanted to get a lot done... and still more to do.

 

BTW I'm not sure how long I'll stay there, as I'm leading by the simple fact it's the only submission. As soon as someone buys a better sample that might be stable at 5.1 instead of mine at 5.0, the only way is down.

8350k-hwb.png

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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8350k-delid.jpg.b4115ce8b0cd103280ba077c16e8756f.jpg

 

Delid done. Small die like previous 4 cores, so not a 6 core die with disabled cores. Liquid metal applied and temp testing now. It's only been soaking for 18 minutes, but is reached a peak of 52C, compared to 65C before delid. Load by Prime95 29.3 64k FFT, CPU at stock.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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1 minute ago, JoostinOnline said:

What I really want to know about is the i3-8100. A budget Intel quad core is really interesting.

Not sure there is much to write about it. Fixed 3.6 GHz without turbo so you can predict performance from that. When the lower end 300 chipsets come out, it could be very interesting for a budget build.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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4 minutes ago, JoostinOnline said:

What I really want to know about is the i3-8100. A budget Intel quad core is really interesting.

Check this out :)

 

 

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How would it compare to the i5 8400 in terms of gaming performance?

 

I'm stuck between choosing one of the two since the i3 seems to be the better choice for clock speeds and quad core speeds especially when overclocked, but since the new i5 lineup has 6 cores I'm worried about it becoming the standard for gaming in the near future. Is there a good reason to choose one over the other? With it being so recent there's very few benchmarks out there that compare the two, which is what I usually go by.

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Temp testing results are in after the delid, with liquid metal.

 

Hottest core dropped 12C, other three cores dropped 7 to 8C, after compensating for ambient changes. Again, this is at stock. Benefits would be greater when OC'd.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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8 hours ago, A1Mike_W said:

How would it compare to the i5 8400 in terms of gaming performance?

 

I'm stuck between choosing one of the two since the i3 seems to be the better choice for clock speeds and quad core speeds especially when overclocked, but since the new i5 lineup has 6 cores I'm worried about it becoming the standard for gaming in the near future. Is there a good reason to choose one over the other? With it being so recent there's very few benchmarks out there that compare the two, which is what I usually go by.

Absolutely go for 6 cores. 4c/4t cpus are not enough for very cpu intensive games because they will be maxing out and even if the game uses less than 4 cores you still have backgroung proccesses (chrome, antivirus system, windows, etc). BF1 for example can max out a 4c/4t cpu which means you get stutter when you hit 100% usage.

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Just done some stress testing on the combo. Turned out I had to drop to 4.7 to allow Prime95 29.3 Blend to keep running, so far passing 20 minutes. I also took the chance to get some photos of the mobo.

 

pro4-ir-1.jpg.2ef6f2aa4df60ba5c1a58c46750f5d8e.jpg

This is is the area next to the VRM heatsink. It is hitting just over 60C.

 

pro4-ir-2.jpg.f01836c97681b2d26b0e1a9cdd10b2d5.jpg pro4-ir-3.jpg.d39c485e9e843ce9bdeee5d2b0a02ea6.jpg

Here's two views of the regulator area at the top, near the EPS power connector. This doesn't have a heatsink. I got a highest reading of just over 70C.

 

Under this condition, the total system was taking around 170W for large FFT, 190W for small FFT. Peak reported CPU temperature was 74C with ambient of 22.5C. The core voltage was around 1.40v for small FFT, 1.425v for large FFT. Now passed 30 minutes of Prime95... I type too slowly...

 

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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20 hours ago, PhaseShift said:

Absolutely go for 6 cores. 4c/4t cpus are not enough for very cpu intensive games because they will be maxing out and even if the game uses less than 4 cores you still have backgroung proccesses (chrome, antivirus system, windows, etc). BF1 for example can max out a 4c/4t cpu which means you get stutter when you hit 100% usage.

I completely agree with you on BF1. My 3570K is on steroids and during BF1 matches it's pushed to the limit. I was thinking maybe 8 cores would be the sweet spot otherwise the 8600K looks like my next CPU. 

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I just tried to have another look at the unexpected difference I previously saw in ram-limited performance between 8350k and 6700k. In short, the new testing wasn't perfect but it has shown me enough I'm going to stop looking at it further.

 

8350k was at 4 GHz CPU, 4 GHz cache (oc from 3.7)
6700k was at 4 GHz all cores, turbo to 4.2 single core. Cache was mostly at 4.0 flickering to 4.1 sometimes, possibly in sync with the single core to 4.2 but I can't be sure. This might impact results.

 

I used the same ram in both systems to try and remove that variable, a pair of Kingston Hyper-X 2666 2x8GB dual rank modules. I left XMP to do its thing. For whatever reason, the 6700k system did use the XMP timings but the 8350k reported 1 cycle longer latency. Benchmark at 4096k FFT in Prime95 29.3 gave results of around 225/215 for the 8350k for 1 and 4 workers respectively. The 6700k got around 220/215. Close enough? When I started, I had much more erratic results, and found it was just Windows doing a load of random junk in the background after I powered on the system for 1st time in a long time. It stabilised after being left alone for a while. On my other 6700k system, with faster ram, I was getting around 240/???.

 

I also tried doing an Aida64 bandwidth measurement. The 6700k came out slightly faster overall for L2/L3 cache, but it was slight. I suspect if the software was only using one core, it could be down to the turbo. Ram bandwidth and latency was slightly in the favour of the 8350k system. I ran twice on each and it seemed consistent enough. 54.6ns on the 6700k, 52.8ns on the 8350k. And as mentioned earlier, this is with the same ram, same speed, and one cycle slower primary on the 8350k system.

 

I'm going to leave it there. They're close enough to each other. To prove it more vigorously would take more time than I'm willing to give and this satisfies my needs.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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How did you put the wraith cooler on your graphics card?

Computer engineering grad student, cybersecurity researcher, and hobbyist embedded systems developer

 

Daily Driver:

CPU: Ryzen 7 4800H | GPU: RTX 2060 | RAM: 16GB DDR4 3200MHz C16

 

Gaming PC:

CPU: Ryzen 5 5600X | GPU: EVGA RTX 2080Ti | RAM: 32GB DDR4 3200MHz C16

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On 10/8/2017 at 11:57 AM, A1Mike_W said:

How would it compare to the i5 8400 in terms of gaming performance?

 

I'm stuck between choosing one of the two since the i3 seems to be the better choice for clock speeds and quad core speeds especially when overclocked, but since the new i5 lineup has 6 cores I'm worried about it becoming the standard for gaming in the near future. Is there a good reason to choose one over the other? With it being so recent there's very few benchmarks out there that compare the two, which is what I usually go by.

Intel's quad cores will be enough until new consoles come out, I really don't understand why people think they'll need monster CPUs when consoles's CPUs are outperformed by a dual core...

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1 hour ago, thegreengamers said:

How did you put the wraith cooler on your graphics card?

I should add it is only the fan from the wraith that I placed on top of the GPU's original heatsink. I separated the wraith fan by undoing the screws, then tried to bolt it onto the GPU's heatsink. The hole spacing was different. After a little thinking, I got solder tags and soldered them together, so I had things with two holes on them, the right spacing apart to match the heatsink holes to the fan holes.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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  • 1 month later...

Do you think any of the overclocking ability is limited by the high temperatures in the VRM(?) area shown in the IR images?

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3 hours ago, Rev. Halzoo said:

Do you think any of the overclocking ability is limited by the high temperatures in the VRM(?) area shown in the IR images?

No, if the VRM was too hot I'd expect to see CPU throttling. Me getting 5 GHz is also about the same ball park as others. Some might get 5.1 or 5.2 on an exceptional sample without extreme cooling. I haven't managed to found stability at 5.1.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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17 hours ago, porina said:

Me getting 5 GHz is also about the same ball park as others. Some might get 5.1 or 5.2 on an exceptional sample without extreme cooling. I haven't managed to found stability at 5.1.

Did you see the HWBOT entry for 5.473ghz on air, do you think that entry is real or would your opinion be that it is barely stable or a scam?

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6 hours ago, Rev. Halzoo said:

Did you see the HWBOT entry for 5.473ghz on air, do you think that entry is real or would your opinion be that it is barely stable or a scam?

It wont be stable. The max CPU frequency ranking only requires system stability for long enough to submit a CPU-Z validation online. My own submission in that was 5.2 GHz, and it is highly unstable. My method is to boot at lower clock speed that is stable, and prepare the software. Then use XTU to adjust the CPU clock and hope it doesn't crash before the submission goes out. I've had cases where it crashes on submission, but when checking for the result online it had got out so was usable.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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