AMD Ryzen 7 7800X could feature 2 more cores than predecessor, according to the new leak. This X-series SKU has just been spotted on Geekbench along with Gigabyte B650 AORUS motherboard.
It looks like the 7800X could be the first AMD Ryzen CPU with 10 cores and 20 threads (not including the Embedded series). The software also confirms the CPU would boost up to 5.38 GHz, so max frequency could go as high as 5.4 GHz. With 10 cores, two Zen4 chiplets need to be enabled. This means that the CPU has 64MB of L3 cache, so twice as much as Ryzen 7 7700X.
Furthermore, there is a first entry of Ryzen 3 7300X CPU. This is a quad-core processor according to the data collected by the software. It would boost up to 5.0 GHz and have 32MB of L3 cache.
AMD released the latest version of the AGESA microcode for Socket AM5 platform. The new version 1.0.0.3 most notably reintroduces a Precision Boost C-state limiter that [accidentally?] got removed with version 1.0.0.2. This limiter prevents the CPU cores from boosting above 5.50 GHz when more than 4 cores are active (i.e. experiencing heavy workload). SkatterBencher demonstrated how this affects performance on Ryzen 7000-series desktop processors.
NopBench, a utility developed by ElmorLabs, lets you figure out the maximum boost frequency obtainable as workload scales across available CPU cores (i.e. starting from 1-thread, to n-thread). NopBench invokes the NOP instruction, and measures the number of NOP instructions can be processed per second. To make the NOP throughput comparable among processors of different microarchitectures, an architecture-specific factor is used, which for "Raphael" is 2.5x. By comparing the NOP throughput of a Ryzen 9 7950X processor tested with AGESA 1.0.0.2 to 1.0.0.3 (ASUS ROG Crosshair X670E Extreme BIOS versions 0611 vs. 0705); SkatterBencher was able to confirm that that the boost limiter is back in place, and limits Precision Boost frequency to 5.50 GHz when the NopBench load exceeds 4 cores.
AMD has issued a new advisory regarding the performance characteristics of its new Ryzen 7000 processors, saying that it had received reports of unexpected performance deltas in some games — as we experienced firsthand in our testing with the Ryzen 7000 processors and the Nvidia GeForce RTX 4090 — and will work with game devs to optimize for its new architecture.
Additionally, despite unsubstantiated reports of performance problems with Windows 11, the company hasn't seen any unexpected results when comparing Windows 10 and Windows 11. Here's AMD's full advisory:
"We have been made aware of reports of unexpected performance deltas in certain games with AMD Ryzen desktop processors as well as performance variances between Windows 11 and Windows 10 in certain game titles. We are currently investigating but based on testing to date have not observed a material difference in game performance between OS versions across a variety of operating scenarios and game titles.
"Many factors affect gaming performance, including the game engine, CPU architecture, GPU selection and memory choices. As new architectures enter the market, we often observe performance anomalies which must be addressed by the component vendor or the game publisher. This is not a new phenomenon nor is it unexpected.
"As we have done since the introduction of Ryzen, when these performance anomalies are brought to light we will use them to steer our partner engagements with game developers and ecosystem hardware partners to implement optimizations that eliminate the variations."
The advisory mirrors what the company told us after we shared our own results that exposed a few new performance inversions with the Ryzen 7000 processors. These inversions, wherein single-CCD (chiplet) Ryzen models outperformed dual-CCD models that have more cores, occurred in three of the eight game titles we tested with the new RTX 4090 GPUs: Warhammer 3, Cyberpunk 2077, and F1 2022. We've also heard of similar trends with The Riftbreaker and Metro Exodus.
AMD's Ryzen 7 5800X3D is a bizarre processor. Historically, to make a faster CPU, you either improve the architecture or increase the clock rate, but AMD made huge, double-digit percentage gains in gaming by simply slapping an extra 64MB of L3 cache on top of its existing CPU. The company's about to do the same thing with its Zen 4-based Ryzen 7000 processors, and according to recent analysis, it may see even bigger gains.
This information originates with Tom Wassick, who does semiconductor packaging stuff for IBM, although he posted the news on his personal Twitter account and not as an IBM employee. After delidding his Ryzen 5 7600X and removing the thermal interface material, he noted that there appear to be more Through-Silicon Via (TSV) columns, "including at least 2 much larger and denser arrays." That implies that AMD designed the Zen 4 CCD to be more optimized for the installation of 3D V-Cache, with greater throughput between the cache die and the compute die.
TSVs are essentially channels in a microprocessor that allow connections to be made through the silicon (thus the name). In this specific case, the only likely use for them would be for the application of vertically-stacked cache, which AMD calls 3D V-Cache. The company already announced that there will be 3D V-Cache versions of the Ryzen 7000 processors, and rumors have them showing up early next year—possibly with an announcement at CES.
| Game | 5900X | 5800X3D |
| Farcry 6 | 105 | 133 |
| AC Valhalla | 178 | 180 |
| Ghost Recon Breakpoint | 249 | 260 |
| Metro Exodus EE | 97.68 | 119.23 |
| RDR2 | 175 | 167 (might be I enabled more options than 5900X run) |
| Cyberpunk 2077 | 109 | 116 |
| Forza Horizon 5 | 148 | 152 |
| COD MW2 | 270 | 271 |
| 3dmark Port Royal | 27093 | 27117 |
My cooling system is set to balanced mode and noise levels don't even change and remain completely silent when I run these benchmarks. Really great results for running 3D renders all day.
My cooling system is set to balanced mode and noise levels don't even change and remain completely silent when I run these benchmarks. Really great results for running 3D renders all day.
Comment