Jump to content

Why does 7200MHz RAM exist when most CPUs have a sweet spot of around 5600MHz

Saw this G.SKILL TridentZ5 kit running at 7200MHz, sounds unreasonably high MHz and so I thought one of you guys might explain this for me.

Link to comment
Share on other sites

Link to post
Share on other sites

Extreme overclocking and e-peen measuring

 

Also, it does offer a bit of a performance benefit for Intel CPUs that can run with it - although at the moment Ryzen 7000 can't handle 7200 speeds with a good fabric ratio.

Link to comment
Share on other sites

Link to post
Share on other sites

7 minutes ago, YoungBlade said:

Extreme overclocking and e-peen measuring

 

yeah this, or in other words making dosh from the gullible with too much cash on their hands ~ 

The direction tells you... the direction

-Scott Manley, 2021

 

Softwares used:

Corsair Link (Anime Edition) 

MSI Afterburner 

OpenRGB

Lively Wallpaper 

OBS Studio

Shutter Encoder

Avidemux

FSResizer

Audacity 

VLC

WMP

GIMP

HWiNFO64

Paint

3D Paint

GitHub Desktop 

Superposition 

Prime95

Aida64

GPUZ

CPUZ

Generic Logviewer

 

 

 

Link to comment
Share on other sites

Link to post
Share on other sites

so could I use this with an i5 13600K and get good performance?

9 minutes ago, YoungBlade said:

Extreme overclocking and e-peen measuring

 

Also, it does offer a bit of a performance benefit for Intel CPUs that can run with it - although at the moment Ryzen 7000 can't handle 7200 speeds with a good fabric ratio.

 

Link to comment
Share on other sites

Link to post
Share on other sites

2 minutes ago, SetSakara2 said:

so could I use this with an i5 13600K and get good performance?

 

When I say "a bit of a performance benefit" I mean 0-10% - emphasis on the "it can be 0%" better. You'd get more of a performance boost for the dollar by stepping up to a 13700K than pairing your i5 with fast RAM. Plus, you'd need to make sure you're memory constrained in your use case, which is rare. In gaming, you're usually either GPU bound or CPU bound, and then in a subset of CPU bound scenarios, you benefit from memory. So in a fraction of a fraction of gaming situations, fast memory is a benefit.

 

If you have to pay a big premium, faster RAM is not generally a worthwhile investment.

Link to comment
Share on other sites

Link to post
Share on other sites

Faster ram benefits latency, reads, writes.. everything.. especially with Intel.

 

The question would be if the CPU, board, and the operator are up to it?

 

People buy that stuff so they don't have to run what the average Joe runs.

AMD R7 5800X3D | Thermalright Phantom Spirit 120 EVO, 1x T30, 1x TL-B12 Ext.
Asus Crosshair VIII Dark Hero | 32GB G.Skill Trident Z Mix @ 3733 14-14-14-34
Zotac 4070 Ti Trinity OC @ 3045/1495 | WD SN850 1TB, SN850X 2TB, SN770 1TB
EVGA SuperNova 750w | Fractal Torrent Compact RGB |2x AL-18, 2x KL-12, 1x TY-143

Link to comment
Share on other sites

Link to post
Share on other sites

Higher end CPUs have been ram starved to some extent for many years, well into the quad core era. This has got worse since AMD kicked off the core wars, where core counts went up, along with more IPC, far faster than ram speed has. Fast ram is one solution to this. The other, that AMD seems more interested in, is more cache. Every time you see a benchmark where ram performance or cache size shows an improvement, that's a task where the CPU is being slowed down by ram.

 

I have to question the OP's claim that 5600 is a sweet spot. That's just the stock speed for current Intel CPUs and a minor overclock for AMD CPUs. For an enthusiast build something in the 6000's is probably a reasonable balance of speed and price, with 7000+ in the more extreme end. It wont be a mass market target spec.

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

Link to comment
Share on other sites

Link to post
Share on other sites

i thought 6000 was the sweet spot for Ryzen and Intel is around 6400

Before you reply to my post, REFRESH. 99.99% chance I edited my post. 

 

My System: i7-13700KF // Corsair iCUE H150i Elite Capellix // MSI MPG Z690 Edge Wifi // 32GB DDR5 G. SKILL RIPJAWS S5 6000 CL32 // Nvidia RTX 4070 Super FE // Corsair 5000D Airflow // Corsair SP120 RGB Pro x7 // Seasonic Focus Plus Gold 850w //1TB ADATA XPG SX8200 Pro/1TB Teamgroup MP33/2TB Seagate 7200RPM Hard Drive // Displays: LG Ultragear 32GP83B x2 // Royal Kludge RK100 // Logitech G Pro X Superlight // Sennheiser DROP PC38x

Link to comment
Share on other sites

Link to post
Share on other sites

On 1/28/2023 at 11:21 AM, YoungBlade said:

When I say "a bit of a performance benefit" I mean 0-10% - emphasis on the "it can be 0%" better. You'd get more of a performance boost for the dollar by stepping up to a 13700K than pairing your i5 with fast RAM. Plus, you'd need to make sure you're memory constrained in your use case, which is rare. In gaming, you're usually either GPU bound or CPU bound, and then in a subset of CPU bound scenarios, you benefit from memory. So in a fraction of a fraction of gaming situations, fast memory is a benefit.

 

If you have to pay a big premium, faster RAM is not generally a worthwhile investment.

I wasn't planning on buying 7200MHz kits in the 1st place, I'm thinking of going with 6000MHz, is that sufficient?

Link to comment
Share on other sites

Link to post
Share on other sites

On 1/28/2023 at 11:03 AM, SetSakara2 said:

Saw this G.SKILL TridentZ5 kit running at 7200MHz, sounds unreasonably high MHz and so I thought one of you guys might explain this for me.

The simplest answer really, is that if it can be made it will be made.

 

Someone will buy it, and a lot of computer engineering boils down to, how far can limits be pushed.

If your question is answered, mark it so.  | It's probably just coil whine, and it is probably just fine |   LTT Movie Club!

Read the docs. If they don't exist, write them. | Professional Thread Derailer

Desktop: i7-8700K, RTX 2080, 16G 3200Mhz, EndeavourOS(host), win10 (VFIO), Fedora(VFIO)

Server: ryzen 9 5900x, GTX 970, 64G 3200Mhz, Unraid.

 

Link to comment
Share on other sites

Link to post
Share on other sites

On 1/28/2023 at 10:54 AM, Shimmy Gummi said:

i thought 6000 was the sweet spot for Ryzen and Intel is around 6400

6000 is for Ryzen I don't know for Intel.  I believe they are less sensitive to memory speeds though.

 

AMD 7950x / Asus Strix B650E / 64GB @ 6000c30 / 2TB Samsung 980 Pro Heatsink 4.0x4 / 7.68TB Samsung PM9A3 / 3.84TB Samsung PM983 / 44TB Synology 1522+ / MSI Gaming Trio 4090 / EVGA G6 1000w /Thermaltake View71 / LG C1 48in OLED

Custom water loop EK Vector AM4, D5 pump, Coolstream 420 radiator

Link to comment
Share on other sites

Link to post
Share on other sites

17 minutes ago, ewitte said:

6000 is for Ryzen I don't know for Intel.  I believe they are less sensitive to memory speeds though.

 

Intel does benefit from higher memory speeds (there are benchmarks out there) but 6000 is good for both, is cheap and available, and likely to be compatible with most chips and motherboards. Intel seems 6400 is a sweet spot but not necessarily worth the money

Before you reply to my post, REFRESH. 99.99% chance I edited my post. 

 

My System: i7-13700KF // Corsair iCUE H150i Elite Capellix // MSI MPG Z690 Edge Wifi // 32GB DDR5 G. SKILL RIPJAWS S5 6000 CL32 // Nvidia RTX 4070 Super FE // Corsair 5000D Airflow // Corsair SP120 RGB Pro x7 // Seasonic Focus Plus Gold 850w //1TB ADATA XPG SX8200 Pro/1TB Teamgroup MP33/2TB Seagate 7200RPM Hard Drive // Displays: LG Ultragear 32GP83B x2 // Royal Kludge RK100 // Logitech G Pro X Superlight // Sennheiser DROP PC38x

Link to comment
Share on other sites

Link to post
Share on other sites

28 minutes ago, SetSakara2 said:

I wasn't planning on buying 7200MHz kits in the 1st place, I'm thinking of going with 6000MHz, is that sufficient?

DDR5-6000 should be sufficient, yes. Although you may be able to get away with lower than that depending on your GPU, the games you play, and the settings you target.

 

There is no one-size-fits-all answer to what kind of memory is the "sweet spot" as prices change all the time. But for this generation of CPUs, with Ryzen, it looks like DDR5-6000 is about as fast as you can go. With Intel, you can go farther, but DDR5-6000 should be plenty unless you absolutely need every last possible frame in a CPU bound game and are willing to pay to get a few percent more performance.

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×