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
Compared to a 2700x your looking at almost 70% increase. lol.
Only 2CU RDNA2, Probably equal or slightly faster than a Vega3.
Aside from higher clock, it seems AMD got better front end, latency and dispatcher. It'll surprise me even more if AMD could manage AVX512 at full clock.
5800x can easily do above 4GHz, it's stock all core is around 4.4-4.6GHz depending on coolingEnergy efficiency is not the same as power consumption
If a CPU can do 2x the work for 50% more power, its more efficient - a task like rendering a video would finish faster, using less total energy overall.
Anyway good performance, good price for 7950X, 7900X +$50 from where it should have been and other parts overpriced (i still can't see how 7700X is going to sell at $400 when 13700K/13700KF arrives at $460/$435 max) and extremely good performance/W (it was expected since Alder Lake was barely matching Zen3 and Intel stayed at the same (slightly improved) process with a bigger chip, while AMD went from 7nm to 5nm with a smaller chiplet)
Also:
No coolers included, not even on 7600X due to TDP/PPT (AMD expect that early buyers paying $250 plus for the motherboard and also taking account DDR5 cost and general platform cost will use anyway their own choice of cooling solutions)
IGP is only 2 CUs!!! (I haven't done the math but it should need logically at least 2.2GHz to match Raptor Lake at 1080p low)
Info from David McAfee (SVP & GM) in PCWorld interview:
1:11:27
These slides contained additional info that they can't share yet.
If someone has them please share.
Only the APU series CPU's will get the beef.
Personally, if they can be used to run freesync displays and encode/decode video they'll be magical - that's intels IGP's big drawcard
And if the 13700K/13700KF beats the 7700X, who cares? The 7800X3D(?) comes out next year, so ...
Then they decided to add media engine also in order to compete in this post covid-era regarding videoconference etc. and the die size was already too much for comfort and since the competition and the target market was not offering much regarding performance they decided for 2CUs (like a happy accident was the expression Robert Hallock used in an old interview)lol i watch it again, AMD rep said $125
Well $125 seems reasonable for B650 DDR5 mb for launch period.
Yes 7800X3D will be better in gaming but at what price, $549?
Thw first sneak peak with the 'over 15% single core' figure but including frequency fooled me into thinking ipc gain was as low as 2%! 13% ipc gain coupled with 17$ clock bump is a giant leap over Zen 3.
- Combining the performance and power efficiency comparisons between the 7950X and the 12900K, we can calculate that the 7950X consumes 257W and has a performance per watt 20-30% worse than the 5950X. They claim that perf.per.watt has improved, but I suspect that this is conditional, such as in the case of iso-clock.
- They avoided comparing the MT performance of 7600X vs 12600X and 7700X vs 12700K. This is a combination where Alder lake is considered cheaper and better performing.
- The "IPC uplift" calculation method they use includes the effects of memory access and cache, such as game FPS and Geekbench. Calculated by their method, Raptor lake with DDR5 will get an "IPC uplift" close to 10%.
Edit.
Waiting for Zen5 or Zen4 3D.
I think people will avoid buying the 6 core for having too few cores/threads and the 8 core for being too expensive for a x7xx model. 12 core and 16 core models are targeting people who don't count their money, just give them, so there AMD will probably sell. A bunch of E Cores wouldn't stop 7950X from selling like hot cakes to professionals.
Then again those prices could be a move from AMD to not make Intel feel the need to start a price war with it's 13th gen. Or maybe they both agreed on them. With Intel saying that it will increase prices and AMD needing to keep increasing it's profit margins, probably it's in both their interests to not price low. From what I have seen the last many years, all three companies, AMD, Intel and Nvidia target profit margins of over 60%. Nvidia was playing there for many many years, Intel was there in their best or even the "just good" days, while AMD is keep moving slowly in that direction, gaining a point or two every quarter.
It is very possible that this AMD lineup will not hold well against the new 13th generation Core i9 and AMD will have to decrease the pricing.
AMD 7000 series will run hot (heat density because of the smaller chiplets), and probably very difficult to cool with lower tier coolers.
Noise, heat, and probably inferiority against the new 13th generation Core i9
Pricing is ... okay, I guess? Slightly better than rumored, and hopefully poised to see some aggressive cuts if/when Raptor Lake comes out and delivers some real competition to this. I also like the promise of $125 motherboards, even if that is a rather depressing baseline compared to the $50-75 baseline 5-10 years ago - but that's the cost of high speed I/O.
I also really, really hope AMD gets off their ass and diversifies their offerings quickly here. We can't have another Ryzen 5000 situation of 4 SKUs for ages and ages. The 5600 non-X and lower SKUs need to launch in 6 months or less, ideally with ST performance still being pretty good, without drastic ST clock cuts. Even if we're no longer in the same kind of supply crunch, I kind of hope AMD makes a 4c CCD to get lower end SKUs off the ground quickly and in good volumes. Would that be expensive? Sure. Would it be worth it? Yes.That's likely true, but then you'll get roughly the same gains with the upcoming 7xxx X3D chips from a 5800X3D as you do for these 7xxx non-X3D chips coming from regular non-X3D. This is expected.These iGPUs have never been targeted at performance, only basic display functionality. That has been plenty clear from how they've been spoken of - they're there so that your PC will be usable without a dGPU, but they aren't meant for any kind of high performance 3D.PPT for the 170W TDP SKUs is 230W, and it won't go higher than that without manual tuning or some harebrained default auto-OC from the motherboard, so whatever your math is for this, it's wrong. Also, did you miss their performance scaling/TDP slide?This is probably true - ADL has an MT advantage due to the E cores, and AMD currently doesn't have a counter to that. It's an interesting reversal from the situation five years ago, but then again this time most end users aren't sitting on 4c4t CPUs, or 4c8t in the best case scenario, but rather 6c12t as pretty much the baseline, so the advantage is less meaningful overall - but still obviously relevant for anyone doing rendering, CPU-based encoding, etc.Where you draw the line for what constitutes IPC is always fluid and ambiguous, but for an implemented CPU architecture, including fixed platform components such as RAM and cache is necessary - you can't control for those across architectures, so they must be included. You could always argue for this not truly being IPC, but at that point you're going to have to look purely at the hardware properties of the chip itself, as any OoO CPU is entirely dependent on its caches and RAM for actual, real-world instruction processing.Then again the 5800X launched at $450, so this is nominally a gen-over-gen drop. Of course the 5800X was also by far the worst value of the 5000 gen, but that's how things were. If anything, I see that drop as indicative that AMD wants to keep margins high, but are prepared to fight it out with Intel in terms of pricing this time around.
that’s why the prices don’t look good. At least for the 7600 and 7700.
-it seems that raptor lake will be the leader in performance no matter the consumption levels but it will be pricey…
-the 5800X3D cannibalizes the entire 7000 lineup in gaming.
-the 2024+ support is probably the most positive thing said on the event.