AMD Ryzen 7000 processors for drawing up to 230W, AVX-512, 28 PCIe 5.0 CPU lanes, V-Cache 3D confirmed; ST Perf was underrated: Hallock
AMD has released a statement clearing up confusion regarding the TDP and PPT of its upcoming Ryzen 7000 processors. According to the chipmaker, the new The AM5 socket supports a TDP up to 170W and a PPT (max power under load) of 229.5W. This increased power consumption will improve the compute performance of high-end Ryzen processors, otherwise known for accelerating clocks under heavy load. AMD has also confirmed that existing high-end coolers will be sufficient for these 170-230W chips, with most budget AIO coolers sufficient for 105W parts.
AMD would like to make a correction to the socket power and TDP limits of the upcoming AMD Socket AM5. AMD Socket AM5 supports up to 170W TDP with a PPT up to 230W. TDP*1.35 is the standard calculation for TDP versus PPT for AMD sockets in the “Zen” era, and the new 170W TDP group is no exception (170*1.35=229.5).
This new TDP group will significantly improve the compute performance of high core count processors in heavy computing workloads, which will accompany the 65W and 105W TDP groups that Ryzen is known for today. AMD takes great pride in providing the enthusiast community with transparent and straightforward product functionality, and we would like to take this opportunity to apologize for our error and any subsequent confusion we may have caused in this regard.
AMD at Toms Hardware
In another interview with TPU, Robert Hallock answered a bunch of other questions. It looks like the Ryzen 7000 family will overtake after all 16 cores and 32 threads, at least at launch. Regarding the controversial single-threaded performance increase figure of 15% (compared to the 5950X), he conceded that AMD was deliberately conservative with their numbers and the the exact CPI vs frequency figures will be published later. The Ryzen 7000 processors are still in the start-up phase (testing/debugging).
The other key aspect of the Ryzen 7000 line is the increased boost frequency (to over 5GHz). According to Hallock, reaching 5.5 GHz was “very easy” and many games were able to reach a frequency of more than 5 GHz for all cores quite easily.
Then there’s the recently released Ryzen 7 5800X3D which absolutely killed it. Flagship gaming performance on a processor that’s virtually compatible with every AM4 card released in the last 4-5 years. Hallock repeated that we will see 3D V-Cache variants of Zen 4 in the future in different flavors.
AVX-512 will be another feature supported by Zen 4 heart. This includes AVX-512 VNNI for neural networks and AVX-512 BLOAT16 for inference. These are both data center oriented instructions that will likely be exclusive to Epyc Genoa processors and disabled on mainstream Ryzen 7000 parts. That said, AMD won’t leverage fixed-function hardware for this, but rather a slower emulated form that will likely be on par with Intel’s implementation, at least in terms of power efficiency.
Finally, the Ryzen 7000 processors will ship with 28 PCIe Gen 5 lanes, four of which will be related to the chipset. On X670E cards, graphics cards will need to run at Gen 5 x16 or x8+x8, plus an M.2 NVMe x4 Gen 5 port. On X670, only the M.2 NVMe slot needs to be Gen 5, the top slot for graphics may or may not be Gen 5. On B650 only M.2 storage will be Gen 5.