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AMD Hardware

AMD Launches Zen 4 Ryzen 7000 CPUs (tomshardware.com) 156

AMD unveiled its 5nm Ryzen 7000 lineup today, outlining the details of four new models that span from the 16-core $699 Ryzen 9 7950X flagship, which AMD claims is the fastest CPU in the world, to the six-core $299 Ryzen 5 7600X, the lowest bar of entry to the first family of Zen 4 processors. Tom's Hardware reports: Ryzen 7000 marks the first 5nm x86 chips for desktop PCs, but AMD's newest chips don't come with higher core counts than the previous-gen models. However, frequencies stretch up to 5.7 GHz - an impressive 800 MHz improvement over the prior generation -- paired with an up to 13% improvement in IPC from the new Zen 4 microarchitecture. That results in a 29% improvement in single-threaded performance over the prior-gen chips. That higher performance also extends out to threaded workloads, with AMD claiming up to 45% more performance in some threaded workloads. AMD says these new chips power huge generational gains over the prior-gen Ryzen 5000 models, with 29% faster gaming and 44% more performance in productivity apps. Going head-to-head with Intel's chips, AMD claims the high-end 7950X is 11% faster overall in gaming than Intel's fastest chip, the 12900K, and that even the low-end Ryzen 5 7600X beats the 12900K by 5% in gaming. It's noteworthy that those claims come with a few caveats [...].

The Ryzen 7000 processors come to market on September 27, and they'll be joined by new DDR5 memory products that support new EXPO overclocking profiles. AMD's partners will also offer a robust lineup of motherboards - the chips will snap into new Socket AM5 motherboards that AMD says it will support until 2025+. These motherboards support DDR5 memory and the PCIe 5.0 interface, bringing the Ryzen family up to the latest connectivity standards. The X670 Extreme and standard X670 chipsets arrive first in September, while the more value-oriented B650 options will come to market in October. That includes the newly announced B650E chipset that brings full PCIe 5.0 connectivity to budget motherboards, while the B650 chipset slots in as a lower-tier option. The Ryzen 7000 lineup also brings integrated RDNA 2 graphics to all of the processors in the stack, a first for the Ryzen family.

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AMD Launches Zen 4 Ryzen 7000 CPUs

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  • I have difficulty grokking this line from TFA:

    The Ryzen 7000 lineup also brings integrated RDNA 2 graphics to all of the processors in the stack, a first for the Ryzen family. These new iGPUs are designed to provide a basic display output, so they aren't suitable for gaming. However, this feature does improve Ryzen's positioning in several market segments.

    After that, the author seems to have forgotten he even mentioned the terms graphics and GPU. The next mention of GPU is in the phrase "M.2 and GPU slots", followed by the title of an article on Intel's support for "Arc GPUs on Linux".

    • by fazig ( 2909523 )
      Computer illiterate people often equate M.2 with PCIe NVMe.
      Something that I hate myself a lot, because it involves a lot of inaccurate advise on building computers, where people think they're smart for buying one of those cheaper SATA M.2 SSDs expecting NVMe performance from them.
      Come on, even LTT explained it correctly in 2017 https://www.youtube.com/watch?... [youtube.com] while Tomshardware Paul Alcorn seemingly doesn't understand it and perpetuates the confusion.
      • will provide PCIe 5.0 to both the M.2 and GPU slots, while the standard B650 will only have 5.0 to the M.2 slot

        Before you call someone computer illiterate maybe read just a couple of additional words, you don't even need to read the entire sentence. There's is nothing at all wrong or confusing, or technically inaccurate with what was said.

        Why you bring up something completely unrelated to the topic of PCIe version to specific slots on the motherboard is beyond comprehension. *YOU* sir are the one sowing confusion.

        • by fazig ( 2909523 )
          I responded to the commenter above.
          I looked it up myself in the article, you are correct. It's out of context.
    • All of the Ryzen 7000 chips will have a basic iGPU chiplet within them. Without a graphics card in your system, the iGPU will act as your basic display. When you have a GPU installed, the iGPU will instead be used for various floating point operations. Remember that RDNA2 specifies various parts within the graphics and compute array (GCA). You've got all kinds of programmable pipes that RDNA2 dictates from CUDA cores to geometry processors, now the iGPU is more than likely going to very much skimp on th

    • by thegarbz ( 1787294 ) on Tuesday August 30, 2022 @01:42AM (#62835305)

      After that, the author seems to have forgotten he even mentioned the terms graphics and GPU.

      That's because it's not worth mentioning. The only news here is that all Ryzen processors in the series now have an iGPU whereas previously only some of them did. There's nothing additional to say.

      • Well, that's news to me. Maybe the author could have pointed out how much faster these new iGPUs might be when compared to the previous generation. The actual benchmarks might come later, but a ballpark manufacturer's estimate would be nice for those hoping to buy a mid-range system.
    • They didn't mention it again because it's not very interesting. It probably has about enough 3d performance to run the pipes screensaver. For instance on my Ryzen 3 budget laptop there is Vega graphics with either 2 or 3 cores, I forget. It struggles to play even ancient games. But it's 100% fine for daily non-gaming use. It has enough acceleration features for desktop acceleration and the like. If you hope to do anything else, you will need a real GPU. From what I can tell RDNA is only about 60% faster tha

      • They didn't mention it again because it's not very interesting. It probably has about enough 3d performance to run the pipes screensaver. For instance on my Ryzen 3 budget laptop there is Vega graphics with either 2 or 3 cores, I forget. It struggles to play even ancient games. But it's 100% fine for daily non-gaming use. It has enough acceleration features for desktop acceleration and the like. If you hope to do anything else, you will need a real GPU. From what I can tell RDNA is only about 60% faster than Vega (per core) so if they are only including one or two cores then this is still going to hold true. Maybe you'll be able to play some really old low-poly games like Quake smoothly.

        That slow? I was under the impression that the AMD iGPUs could run any opensource game smoothly at a low to medium graphics configuration. FWIW, my fastest CPU is just an i3. I forget what generation, but it's fine enough for most opensource games, a notable exception being 0 AD [play0ad.com]. No Steam for me. Most of the browsing is done on a Pentium NUC.

  • have more cache than the 40MB of hard drive space in my first PC, that is crazy. You could run windows 3.1 just on the processor itself.
  • Tom's Hardware was a really good review site. IMHO, they have been biased toward Intel, for the last several years. Looking forward to benchmarks.
  • So what CPU flaws does AMD have open, and are they fixed in this release? Intel has heaps of unfixed cpu bugs. Forget remediation compiles, just fix the stuff that is broken or leaks,Even Apple got caught out - but they are fast learners, and it seems even when Intel 'gifts' pre-execution speedups, it comes with dirty leakages and exploits.
  • Years and years of "cache hierarchy errors" in both 5- and 3- series high-end CPUs

    Wake me when they have a CPU that works reliably instead of crash quickly.

    And for those of you out of the loop, just google for the hundreds of forum threads and thousands of posts about it. After 10 years with intel, i splurged on a 5950x, only to be given a kick in the nuts.

    Yeah yeah speed frequency IPC backdoors intel management engine unfair practices blah ... i just want the computer to not randomly crash, is that too muc

    • Re:Fuck them (Score:4, Interesting)

      by test321 ( 8891681 ) on Tuesday August 30, 2022 @06:44AM (#62835755)

      Maybe you got unlucky with a bad chip? I have a 3950X, it does mprime (GIMPS) and after 40 hours uninterrupted computation at full power, the final checksum (Lucas-Lehmer residue) is always correct. This does not necessarily mean all AMD chips are as reliable as mine, but certainly not all of them are as bad as yours. Maybe your problem is not CPU, it's the RAM; simple memtest86 is known to pass even for some kinds of faulty RAM.

      • by gTsiros ( 205624 )

        it's a known issue with all zen (all) CPUs

        and the stress test you mention is irrelevant

        the problem manifests when the CPU is idle or near idle

    • Wake me when they have a CPU that works reliably instead of crash quickly.

      Crash? Sounds like you got quite unlucky. I did a quick google and while I found a whole series of general complaints the overwhelming majority seem not only to be not related to any hardware specific problem, they also seem to pale in comparison to complaints about intel. So ... yeah.

      WAKE UP! THINGS ARE FINE! RMA YOUR DODGY PIECE AND MOVE ON!

  • by bill_mcgonigle ( 4333 ) * on Tuesday August 30, 2022 @10:04AM (#62836297) Homepage Journal

    How low can it go? AMD has been developing Ryzen 4 while electricity prices have doubled around the world.

    The payback could be very quick on this generation if the power budget is tight.

    Most of the time my computer does nothing that a RP4 couldn't handle but then I need to compile or render something that takes hours. It's silly to spin at 45W for most of the time but then buying 90W or 125W makes sense sometimes.

    Our current architectures simply don't let me have my data and memory on multiple cpu's of different architecture yet, with the narrow exception of CUDA for special tasks. Eventually we'll get there.

    Europeans may also be very interested in this dichotomy. Imagine the RP4 shortage when they figure out a RP4K runs at 9W and can handle all most people need!

    • Maybe I understood you wrong but did you say you CPU idles at 45W? That's awfully high.
      Anyway, in the same article they mention that, in CPU-Z (a CPU info tool) they found mention of the same CPU codenames but without an "X". That usually means lower power versions of the CPUs so it's likely AMD will eventually release them.
      • Maybe he meant the system. My potato idled at 100W last I checked it, not counting the monitor. It's a FX-8350, but it was SLI at the time and now it's not, but I also doubled the RAM...

        • My complete 8 core Ryzen system draws 16 watts from the wall at idle to normal load. Recent AMD motherboards, processors and GPU are even better, time to measure again.

As you will see, I told them, in no uncertain terms, to see Figure one. -- Dave "First Strike" Pare

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