AnandTech sees some intriguing regressions on certain benchmarks,<p><a href="https://www.anandtech.com/show/18747/the-amd-ryzen-9-7950x3d-review-amd-s-fastest-gaming-processor/4" rel="nofollow">https://www.anandtech.com/show/18747/the-amd-ryzen-9-7950x3d...</a> (<i>"CPU Benchmark Performance: Simulation"</i>)<p>Worst is Factorio, which is down -47% against the 5800X3D (a previous-generation CPU that also uses stacked L3 cache), on the benchmark "10K trains". Wonder what's going on there?<p>- <i>"We would have expected higher performance in our Factorio benchmark, as the Ryzen 7 5800X3D and its 3D V-Cache did yield some impressive gains. This is likely due to the AMD PPM Provisioning and 3D V-Cache driver opting for frequency over cache when running this benchmark."</i>
I wish they'd included the results of the undervolted 7950x in the graphs (aka ECO mode)<p>It's sad that performance benchmarks have made market conditions where the gain of 5% performance is somehow worth 20%-30% extra power consumption (and the noise that follows from that)
<i>> To make sure gaming workloads find the right CCD, AMD has implemented a high degree of software-level control, in the form of its 3D Vertical Cache Optimizer Driver, which is included with the latest version of AMD Chipset Software. This driver ensures that workload from games are directed to the CCD with the 3D Vertical Cache using dynamic "preferred cores" flagging for the Windows OS scheduler.</i><p>Yeah, what about games on Linux? I'm pretty sure it will be scheduled all over the place.<p>Also I doubt that scheduler is smart enough to detect it dynamically. Do they just use a list of known applications for that?
Related and also interesting: Ryzen 7950X3D with One CCD Disabled - The 7800X3D Preview<p><a href="https://www.techpowerup.com/review/ryzen-7800x3d-performance-preview/" rel="nofollow">https://www.techpowerup.com/review/ryzen-7800x3d-performance...</a>
I'm not a fan of how they park the slower CCD, since it means that the scheduler will try to force all processes onto the same CCD (regardless of whether it's for the game), instead of offloading the non-game workloads onto the other CCD. This is an issue if you run background tasks (such as streaming) or have multiple monitors setup for other things like browser etc.
Lots of software could run in just 128MiB, especially if it could page stuff out to ssd.<p>CPU's usually have a cache-as-ram mode that can enable this.<p>Does this mean that systems where you can hot swap <i>all</i> the ram at once will be possible?
I wish the 64 core Threadrippers were still available for a decent price for HEDT, it's all Epyc or Threadripper Pro which are much more expensive for minimal increase in power over the 3990x.
Can I have a mode where some of that 128M is never flushed to RAM?<p>For example, I'd quite like my disk encryption key to never end up in RAM - it's much harder to steal from inside a running CPU...
Does this 7950X3D have an iGPU?<p>P.S: the table in TFA lists the 7700 as having the same 105W as the 7700X. I think that's a slight mistake and the 7700 is 65W max listed TDP instead. FWIW I'm considering a 7700 for I'm not ultra happy with my 3700X (one of the reason being it has no iGPU and I could find a passive GPU with a NVidia chipset, forcing me to use proprietary drivers in Linux and it's a major PITA for if I hack on ther kernel I then need to apply the NVidia patches every time)
That's awesome but I'm still looking for new Threadrippers.<p>I hope that HEDT isn't dead and it might be at least barely affordable (e.g. 32 cores for less than $2K as it was with 39xx lineup)
The inflation has really hit the consumer market... 700$ for CPU and over thousand for GPU... Memory is not cheap either...<p>Not that it won't sell, but still these price points for something still called consumer start to be high. You could get a whole portable PC for same money.
Have you noticed how AMD and Intel just do tiny steps, sometimes even not worth writing about when it comes to innovation?
It's always either AMD matching the new Intel CPU of other way around - it's never about eg. completely crushing Intel.<p>This is the problem of late stage capitalism, where both companies are owned by the same large investment funds and they use their power to ensure neither company could eat too much profits of another.<p>When AMD was falling behind, they seem to have been "allowed" to do the Ryzen and it's back again to "elephant race".