Friday, February 24th 2023

AMD's Reviewers Guide for the Ryzen 9 7950X3D Leaks

AMD's Ryzen 7000-series CPUs with 3D V-Cache are set to launch next week and alongside the launch, there will obviously be reviews of the upcoming CPUs. As with many other companies, AMD prepared a reviewers guide for the media, to give them some guidance, as well as expected benchmark numbers based on the test hardware AMD used in-house. Parts of that reviewers guide has now appeared online, courtesy of a site called HD Tecnologia. For those that can't wait until next week's reviews, this gives a glimpse of what to expect, at least based on the games tested by AMD.

AMD put the Ryzen 9 7950X3D up against Intel's Core i9 13900K, both systems were equipped with 32 GB of DDR5-6000 memory and liquid cooling. Tests were done with both AMD's own Radeon RX 7900 XTX and an NVIDIA GeForce RTX 4090 graphics card. We won't go into details of the various benchmarks here, as you can find those below, but according to AMD's figures, AMD came out on top with a 5.6 percent win over the Intel CPU, at 1080p using the Radeon RX 7900 XTX and by 6 percent using the GeForce RTX 4090. This was across 22 different games, with Horizon Zero Dawn and F1 2021 being the games favouring the AMD CPU the most and Far Cry 6 and the CPU test in Ashes of the Singularity being the games favouring the AMD CPU the least. TechPowerUp will of course have a review ready for your perusing by the time the new CPUs launches next week, so you'll have to wait until then to see if AMD's own figures hold true or not.
Sources: HD Tecnologia, via VideoCardz
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133 Comments on AMD's Reviewers Guide for the Ryzen 9 7950X3D Leaks

#26
A Computer Guy
AnotherReaderWe will see this pattern until the stacked cache is below the CPU chiplet. AMD will do this with MI300, but we'll see what tradeoffs come with that approach.
It would be neat if they could stack DRAM. Imagine 128GB ram staked on the CPU.
Posted on Reply
#27
Harthad
I'd love to see some World of Warcraft benchmarks with this CPU.
I know it depends a lot on the location, server, time of day, etc but still
Posted on Reply
#29
trsttte
mb194dcLet's see the 4k results with RT or higher.
CPU tests are always done at lower resolutions, it's a matter of choosing your bottleneck. It's easy for a modern high end GPU to push countless frames at 1080p, so the limit is the CPU capacity to push stuff to be rendered.

The opposite happens with GPU tests, the GPU will take longer and only be able to render a lower number of frames at higher resolutions while the CPU has enough time to keep the pipeline fed.
Posted on Reply
#30
Space Lynx
Astronaut
AnotherReaderWhile the tests should be done with higher speed RAM for Intel, I don't think the price differences are correct. These are the lowest prices for a 32 GB kit of DDR5 on PcPartPicker in the USA:
  1. DDR5 6000 CL30: $ 146
  2. DDR5 6600 CL34: $ 188
  3. DDR5 7200 CL34: $ 247
I see. You mean memory latency; in that case, I expect Intel to have lower latency.
$247 ain't shit these days. hell costs $25 for a bowl of chicken wings, I still say 720-0 cl 34 should be Intel's norm
Posted on Reply
#31
ThrashZone
Space Lynx$247 ain't shit these days. hell costs $25 for a bowl of chicken wings, I still say 720-0 cl 34 should be Intel's norm
Hi,
Makes the products go faster :laugh:
Posted on Reply
#32
Denver
Space Lynx$247 ain't shit these days. hell costs $25 for a bowl of chicken wings, I still say 720-0 cl 34 should be Intel's norm
I buy 80-90 kg of chicken for U$ 250, the problem is that something is not worth the price charged and you still pay. :p
Posted on Reply
#33
AnotherReader
Space Lynx$247 ain't shit these days. hell costs $25 for a bowl of chicken wings, I still say 720-0 cl 34 should be Intel's norm
If you're buying expensive processors like the 13900k or the 7950 X3D, then a $100 difference isn't much, but it's still important to note that there's a difference, and given that the MSRP for the 7950 X3D is about $ 130 more than than the street price of the 13900k, the difference in price for RAM erases or minimizes the premium for the V-Cache option.
Posted on Reply
#34
mb194dc
trsttteCPU tests are always done at lower resolutions, it's a matter of choosing your bottleneck. It's easy for a modern high end GPU to push countless frames at 1080p, so the limit is the CPU capacity to push stuff to be rendered.

The opposite happens with GPU tests, the GPU will take longer and only be able to render a lower number of frames at higher resolutions while the CPU has enough time to keep the pipeline fed.
It's unrepresentative of nearly all real world use cases and largely pointless.

If 3d cache doesn't produce a boost at normal use case resolutions, little point in it.

It doesn't matter what CPU you have if you're GPU limited anyway. That should be highlighted.
Posted on Reply
#35
R-T-B
DenverI buy 80-90 kg of chicken for U$ 250, the problem is that something is not worth the price charged and you still pay. :p
Hate to have to say this, but it's literally worth what people will pay. If he buys it, it's worth it (to him anyways).
Posted on Reply
#36
AnotherReader
Space Lynxwell honestly I just can't get my mind off chicken wings and wish they were cheaper. I have no idea what else is going on atm...

:roll: :roll: :roll:
I hear you. Almost every thing is more expensive than a couple of years ago.
Posted on Reply
#37
AnotherReader
TheLostSwede
Come on man. You're making me hungry.
Posted on Reply
#38
A Computer Guy
AnotherReaderCome on man. You're making me hungry.
Listen up bub, my chicken has harry legs and I like my CPU deep fried in 3D barbecue sauce.
Posted on Reply
#39
phanbuey
If you're doing workstation tasks then 7900 non x with a cheap gigabyte board tons of ram, and a boatload of fast SSDs , if you're doing gaming then 7800X3D (which is still a good ws chip btw) -- these 7950x3d chips kind of make no sense pricing wise.
Posted on Reply
#40
AnotherReader
phanbueyIf you're doing workstation tasks then 7900 non x with a cheap gigabyte board tons of ram, and a boatload of fast SSDs , if you're doing gaming then 7800X3D (which is still a good ws chip btw) -- these 7950x3d chips kind of make no sense pricing wise.
There will be cases other than gaming where a 7950 X3D will be be faster than its regular counterpart. Any application that has a working set larger than 32 MB will benefit from that large cache. Even in W1zzard's review of the 5800X3D, you can see that there are tasks where it is faster than the 5800X despite the clock speed gap.

Posted on Reply
#41
Ando
I want to see testing done with lower spec RAM vs optimal 6000 cl30 stuff. The 5800X3D was less memory sensitive, so I assume this will be the same.
A 7800X3D might look very impressive value wise with a cheap RAM kit next to the 13900K.
Posted on Reply
#42
dirtyferret
HarthadI'd love to see some World of Warcraft benchmarks with this CPU.
I know it depends a lot on the location, server, time of day, etc but still
You would expect the extra cache to show an improvement similar to the 5800X3D, the only question is there a point of diminishing returns for it?
Space Lynx$25 for a bowl of chicken wings
do chicken wings come in a bowl? I thought it was a plate? :cool:
Posted on Reply
#43
A Computer Guy
Space Lynxyou gotta shake the sauce all over baby

I wasn't planning to go out of the house today but you people are going to make me drive to Buffalo aren't you.
Posted on Reply
#44
THU31
Seems like the 3D cache was much more beneficial with DDR4. DDR5 almost doubles the bandwidth with similar latency, so the gains are much smaller.
Posted on Reply
#45
A Computer Guy
One things I would be interested to see, if possible, is the effective utilization of the cache.
Posted on Reply
#46
phanbuey
AnotherReaderThere will be cases other than gaming where a 7950 X3D will be be faster than its regular counterpart. Any application that has a working set larger than 32 MB will benefit from that large cache. Even in W1zzard's review of the 5800X3D, you can see that there are tasks where it is faster than the 5800X despite the clock speed gap.

Yeah but with asymmetric cores? half of which are 15% slower?... idk.

Yeah it will help in some WS tasks coded to take advantage of it, but in that setup those are mostly outliers.
Posted on Reply
#47
AnotherReader
phanbueyYeah but with asymmetric cores? half of which are 15% slower?... idk.

Yeah it will help in some WS tasks coded to take advantage of it, but in that setup those are mostly outliers.
Yes, in most cases, it'll be slightly slower than the 7950X. Keep in mind that the 7950X also enjoys a higher TDP.
THU31Seems like the 3D cache was much more beneficial with DDR4. DDR5 almost doubles the bandwidth with similar latency, so the gains are much smaller.
There are still cases where the additional cache helps tremendously. F1 2021 and Watch Dogs Legion see enormous gains. Keep in mind that CPUs aren't like GPUs; they are latency engines, i.e. designed to reduce the latency of a task. For them, latency trumps bandwidth, and L3 cache's latency advantage is even greater for Zen 4 because of Zen 4's higher clocks.
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#49
Minus Infinity
Wow, what a waste of effort. I expect virtually nothing for productivity software. This seems be far weaker than the 5800X3D uplifts despite AMD's hype. Also overhyped and lied about 7900XT(X) performance too.

I could care less about about gaming performance with cpu's like Zen 4 and Raptor Lake, they are more than strong enough. For productivity I still think 13700K is the sweet spot, but will wait and see if the RL refresh is more than a tweak to clock speeds.
Posted on Reply
#50
Garrus
ZunexxxMore interesting comparison would be faster ram on the Intel side and what it is on the AMD side. Intel can support faster ram while AMD can't. Tbh, it seems to be quite lackluster performance gain.
6000C30 is practically the fastest ram you can buy... if you buy 7200 stuff the latency is worse, you can't buy 7200C30 for example, so your comment is wrong
AnotherReaderTop end hardware isn't struggling with 1080p; with the exception of Ashes of the Singularity, the lowest fps in the guide are just below 200 for the 13900k.
not true, try Hogwarts Legacy at 1080p with full RT on

there are lots of games that struggle at 1080p now, but none of them are in that guide
Space Lynx$247 ain't shit these days. hell costs $25 for a bowl of chicken wings, I still say 720-0 cl 34 should be Intel's norm
The very best ram you can buy is the 5600C28 stuff. After that, the 6000C30 stuff. You don't get any advantage buying "faster" stuff for Intel either.
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