Monday, August 29th 2022
AMD Announces Ryzen 7000 Series "Zen 4" Desktop Processors
AMD today announced the Ryzen 7000 series "Zen 4" desktop processors. These debut the company's new "Zen 4" architecture to the market, increasing IPC, performance, with new-generation I/O such as DDR5 and PCI-Express Gen 5. AMD hasn't increased core-counts over the previous-generation, the Ryzen 5 series is still 6-core/12-thread, the Ryzen 7 8-core/16-thread, and Ryzen 9 either 12-core/24-thread, or 16-core/32-thread; but these are all P-cores. AMD is claiming a 13% IPC uplift generation over generation, which coupled with faster DDR5 memory, and CPU clock speeds of up to 5.70 GHz, give the Ryzen 7000-series processor an up to 29% single-core performance gain over the Ryzen 5000 "Zen 3."
At their press event, AMD showed us an up to 35% increase in gaming performance over the previous-generation, and an up to 45% increase in creator performance (which is where it gets the confidence to stick to its core-counts from). The "Zen 4" CPU core dies (CCDs) are built on the TSMC 5 nm EUV (N5) node. Even the I/O die sees a transition to 6 nm (N6), from 12 nm. The switch to 5 nm gives "Zen 4" 62 percent lower power for the same performance, or 49% more performance for the same power. versus the Ryzen 5000 series on 7 nm. The "Zen 4" core along with its dedicated L2 cache is 50% smaller, and 47% more energy efficient than the "Golden Cove" P-core of "Alder Lake."
The "Zen 4" CPU core gets a bulk of its 13% IPC gain from the core's front-end, followed by load-store, branch-prediction, and execution engine. The company also doubled the size of the per-core L2 cache to 1 MB. The core introduces support for AVX-512 instruction set. Eight cores share a 32 MB L3 cache on a CCD. The 6-core and 8-core SKUs in the Ryzen 5 and Ryzen 7 series, come with a single CCD, whereas the 12-core and 16-core Ryzen 9 parts come with two.
AMD introduces a brand new socket with Ryzen 7000, Socket AM5. This is a resilient 1718-pin LGA, with the ability to delivery up to 230 W of power, and comes with next-generation I/O that includes DDR5 and PCIe Gen 5. Physically, the coolers are compatible with Socket AM4 thermal solutions, so you can carry over your old coolers. AMD is promising to launch future generations of Ryzen processors that are AM5-compatible going up to 2025 at least.
There will be four chipset choices with Ryzen 7000, these include the X670E and X670 in the high-end; and the B650 and B650E in the mid-range. Motherboards with X670/E debut in September, and the B650/E in October. AM5 is the first platform with CPU-attached NVMe Gen 5, and the company predicts the first Gen 5 SSDs should arrive by November. We confirmed with AMD that they are not artificially limiting the performance of processors running on the B-Series chipsets vs the X-Series chipsets. The difference between B650 and B650E is that B650E offers support for PCIe Gen 5 for graphics cards and SSDs, while B650 non-E supports PCIe 5.0 SSDs, and PCIe 4 GPUs. AMD is introducing a new memory profile technology called EXPO that eases memory overclocking. It is a royalty-free technology, and includes memory settings specific to the AMD architecture. You are of course able to use Intel XMP-compatible DDR5 memory modules, these might just not have the most perfect settings out of the box. As many as 15 memory kits are being launched at speeds of up to DDR5-6400, from various manufacturers.
The AMD Ryzen 5 7600X is a 6-core/12-thread processor with 4.70 GHz nominal clocks. up to 5.30 GHz boost, 105 W TDP, and is being launched at $299. The Ryzen 7 7700X is 8-core/16-thread, clocked at 4.50 GHz, with up to 5.40 GHz boost, 105 W TDP, and is being launched at $399. The Ryzen 9 7900X is 12-core/24-thread, clocked at 4.70 GHz, with up to 5.60 GHz, 170 W TDP, and is being launched at $549. The top 7950X is 16-core/32-thread, clocked at 4.50 GHz, with up to 5.70 GHz boost, 170 W TDP, launching at $699. All SKUs available to purchase on September 27, 2022. This is an on-shelf date, not a preorder date (we have that confirmed personally).
The complete slide-deck follows.
At their press event, AMD showed us an up to 35% increase in gaming performance over the previous-generation, and an up to 45% increase in creator performance (which is where it gets the confidence to stick to its core-counts from). The "Zen 4" CPU core dies (CCDs) are built on the TSMC 5 nm EUV (N5) node. Even the I/O die sees a transition to 6 nm (N6), from 12 nm. The switch to 5 nm gives "Zen 4" 62 percent lower power for the same performance, or 49% more performance for the same power. versus the Ryzen 5000 series on 7 nm. The "Zen 4" core along with its dedicated L2 cache is 50% smaller, and 47% more energy efficient than the "Golden Cove" P-core of "Alder Lake."
The complete slide-deck follows.
195 Comments on AMD Announces Ryzen 7000 Series "Zen 4" Desktop Processors
Actually, phoronix run a test suite of 143 benchmarks. Not only was the 12900k the fastest CPU on the planet, it actually consumed the least amount of power in total to finish the whole test. So yeah...
I don't really know where those contradictions are coming from with the efficiency you are talking about. Both reviews state that Intel 12900k is not an efficient architecture especially for MT workloads. So saying 12900k is efficient, kinda puts to question HWUB and GN reviews and conclusions which I understand are wrong in your eyes?
I get the 12900k (and others) can be tweaked but any given CPU can be tweaked so yeah...
Of course the 12900k out of the box is inefficient at heavy MT workloads. Actually, EVERY cpu will be inefficient when it's running heavy MT workloads at 5 ghz.. So the question is, if you want to run heavy MT workloads and you care about efficiency, why are you running them at 5ghz and 240w?
Also you keep mixing architecture and product. How many times do I have to repeat myself, in order to compare archs you need to do it at same wattage. It blows my mind how you can't comprehend this. Your method of testing archs is shown to lead to contradictions. For example, Raptor lake will have a model named 13900t, it will be power limited at 35w at stock. That will without a doubt make it the most efficient CPU in existence at stock. According to your logic then, raptorlake will be the most efficient architecture, right?
Anyway. I think that's enough. It is still AMD thread so maybe lets just stop here with your Intel efficiency problems.
There is a near 100% success rate in overclocking non K chips to 5.1Ghz all core, a 15%+ OC on the 12400. All of HW Unboxed non K chips did this with no fuss.
The caveat here is that for the most part, you'll need a $250+ motherboard to do this in the US else you have to order from overseas where you can get models that will allow this for under $150 USD. Outside the US, this isn't an issue as far as I can tell.
HW Unboxed was able to get all 3 of their Non-K chips to do a stable 5.1Ghz OC. I've seen these running over 5.4Ghz. From what I can tell, a 12400 at 5.4Ghz is in the same performance ballpark as a 7600X.
Der8auer used DDR5-5200 C38 - cheap memory - on the 12400 @ 5.24Ghz and and in some cases it beat a 12900K equipped with DDR4-3600 C14 :
In this one averages for 5.24Ghz 12400 beat the 12600K and lost to 12700K/12900K, but the 1% lows were the highest and frame time consistency were the best on the 5.24Ghz 12400 :
B&H Photo and Newegg don't have them in stock, can't find one on Amazon either. Ditto for Microcenter. E-Bay has them for like $260-$300 stateside. Beyond that it's international, and if doing a budget build there's the ASRock PG Riptide at ~$150.
On top of this: overclocking is not trivial. I entirely agree that if you're a budget constrained enthusiast, or have the time and willingness to teach yourself how to overclock, low end ADL will likely present a better value proposition than Zen4, at least until lower end Zen4 launches. However, if you don't then it doesn't, as overclocking potential that isn't used is utterly worthless. And, crucially, the vast majority of PC builders do not overclock. One thing is talking about the small niche we as enthusiasts live in; another is talking about the market in general, the advice we give to others, etc. For someone who isn't an enthusiast, who just wants something that works out of the box, Zen4 will likely be a very good option - and we'll have to wait for reviews to see just how it stacks up against RPL.
@Dyatlov A's "point" as they're saying now - which wasn't a point made, but a question - makes no sense in the context of a mass market product launch, but instead seems to believe that AMD when launching a new product is only communicating with enthusiasts. Which ... well, just isn't the case. And that is the problem of asking "why didn't they compare it to OC'd ADL?" - it's a nonsensical thing to ask outside of a small niche of enthusiasts. It makes sense to us, but applying that logic to AMD's statements just fundamentally fails to take into account how the world works.
the 11th gen do pretty well there, and then 12th just... flops horribly :/
People are mixing and matching their data, but the simple fact is intel fell behind in power efficiency something fierce - they wanted to win in performance no matter the cost
It is like buying a GPU because of it's OC potential. It may not be there because it depends on the GPU. One can go crazy OC the other not really. Same with CPUs.
Zen 3 fell behind in power efficiency cause they wanted to win in performance apparently.
Even if what you are saying is true and has a merit, wrong translation or whatever, Zen3 was released 2 years ago when 12th gen was not in the market so stating, "Zen 3 is behind in power because they wanted to win in performance" is at best misleading. Zen3 competed with 10th and 11th gen and comparing to those it was a very efficient and performed way better chip. It took Intel a bit to even compete with Zen3.
But you are right, zen 3 was competing with 10th and 11th. Now with zen 4 amd increased power consumption by a huge amount to compete with raptorlake, even though half their skus fail to even compete with alderlake.
is this one also translated wrong....?
Pic from TPU 5800X3D review, power efficency.