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kamamam

What is factual fastest speed you can get and how does it compare to RAM disk?

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Posted · Original PosterOP

Imagine I'm a multimillionaire and want to create a server with fastest read/write speeds possible.

I imagine I could use a lot of RAID 0's PCIe SSDs, but of course these don't stack forever, there's a practical limit to it's speed.

Considering I could hire a specialist do it for me, what is a practical first speed limit I would reach and how would it compare to RAM?

The other way to ask this question is what combination of setup and commercially accessible hardware (excl. RAM) would I need to reach possible peak read/write speed and how would that compare to a RAM disk?

 

It's theoretically-practically speaking. Theoretically USB 3.0 is insanely fast, until you use it, practical reality looks different and theoretical maximum is never reached.

Same applies to this question, what is a theoretical maximum that you can reach in actual practicality?

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RAM is one of the fastest buses in an entire system, I don't know if much can actually top it.

 

That said, anything you load into RAM will be lost in the event of losing power(either by shutdown or power outage).

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Posted · Original PosterOP
4 minutes ago, Crunchy Dragon said:

That said, anything you load into RAM will be lost in the event of losing power(either by shutdown or power outage).

Guessed as much, but I think more of a redundant storage.

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Max speed depends on how many PCIe lanes the CPU has. 9600k for example, has 16 PCIe lanes to the PCIe slot and 4 to the chipset. with appropriate expansion cards you can have 5 PCIe 3.0 x4 SSDs running at their max speed (assume 3000MB/s), put them in RAID and you can expect some 15000-16000MB/s speed in theory (in practice, likely lower)

 

RAM however... Even 2666MHz dual channel kit can easily do about twice that (theoretical max is 42656MB/s, you'll never reach that).

 

If you're a millionaire and buy an 8 channel Eypc running 3200MHz memory, you'll get a theoretical max of 200GB/s (more like 150GB/s in practice), while 128 PCIe 4.0 lanes gives 246GB/s worth of bandwidth, assuming 6000MB/s per SSD (I dont see any drives on the market that can do that, let's say you can source server material) then it could still do 192GB/s which is barely slower than the max of RAM.


CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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3 minutes ago, kamamam said:

but I think more of a redundant storage.

It's definitely not a good redudant storage when it forgets everything after a shutdown


CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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@Jurrunio what about HBM2 VRamdisks? /s


Bethesda PC:   R7 3700X  -  Crosshair VIII hero  -  Corsair Vengeance RGB 16GB@3.2GHz -  Strix 1070Ti  -  Samsung 860 Evo 256GB  -  WD Blue 2TB SSD -  Lian Li PC-011D  -  H100i RGB Platinum SE  -  Rm650x

CrumpleBox V3:  Xeon X5680  -  Asus X58 Sabertooth  -  DDr3 16GB@1.33Ghz  -  PNY OC GTX 1060 3GB- XFX Ghost HD 7770 -  TT smart RGB 700W  -  

Fractal Design Define C  -  120GB Samsung 850 Pro  -  1TB Hitachi@7200RPM   -  LTT Edition Chromax NH-D15 ?

Perhiperals:  Gateway 900p60 monitor  -  Dell 1024x768@75  -  Logi. G403 Carbon  -  Logi. G502  -  SteSer. Arctis 5  -  SteSer. Rival 110 - Corsair Strafe RGB MK.2

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Posted · Original PosterOP
2 minutes ago, GrockleTD said:

@Jurrunio what about HBM2 VRamdisks? /s

 

Doesn't HBM2 drop memory just like RAM does during power outage?

Isn't HBM2 to GPU what RAM is to CPU (technically L1 cache, but still)?

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7 minutes ago, kamamam said:

 

Doesn't HBM2 drop memory just like RAM does during power outage?

Isn't HBM2 to GPU what RAM is to CPU (technically L1 cache, but still)?

Yes, I was just joking about maximum bandwidth achievable


Bethesda PC:   R7 3700X  -  Crosshair VIII hero  -  Corsair Vengeance RGB 16GB@3.2GHz -  Strix 1070Ti  -  Samsung 860 Evo 256GB  -  WD Blue 2TB SSD -  Lian Li PC-011D  -  H100i RGB Platinum SE  -  Rm650x

CrumpleBox V3:  Xeon X5680  -  Asus X58 Sabertooth  -  DDr3 16GB@1.33Ghz  -  PNY OC GTX 1060 3GB- XFX Ghost HD 7770 -  TT smart RGB 700W  -  

Fractal Design Define C  -  120GB Samsung 850 Pro  -  1TB Hitachi@7200RPM   -  LTT Edition Chromax NH-D15 ?

Perhiperals:  Gateway 900p60 monitor  -  Dell 1024x768@75  -  Logi. G403 Carbon  -  Logi. G502  -  SteSer. Arctis 5  -  SteSer. Rival 110 - Corsair Strafe RGB MK.2

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2 hours ago, GrockleTD said:

@Jurrunio what about HBM2 VRamdisks? /s

You're still limited by the PCIe bus though


CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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