Ryzen 9 7950X3D review: AMD’s monster gaming CPU works like a pro, too

In recent years, two has been a good number for AMD. More specifically—the second generation of its CPU architectures. What the company begins in the first gen, it pushes forward in some substantial way in the next round. We saw this during the company’s comeback on desktop, and then its surge forward on laptops. Now Team Red’s doing the same with its innovative 3D V-Cache offerings.

The Ryzen 7 5800X3D, AMD’s first 3D V-Cache processor, launched last summer. Layered with additional L3 cache, it was a gaming monster, but limited to the single 8-core offering. When AMD’s own Ryzen 7000 series chips and Intel’s impressive 13th-generation Raptor Lake parts launched last fall, the 5800X3D still held its own against them in games, but lagged significantly in workstation tasks that lean heavily on more cores.

Now AMD has released 3D V-Cache versions of its modern Ryzen 7000 CPUs, expanding to three different SKUs: the 8-core $449 Ryzen 7 7800X3D (launching April 6), 12-core $599 Ryzen 9 7900X3D, and the flagship $699 Ryzen 9 7950X3D we’re testing today. (The Ryzen 9 7900X3D and 7950X3D chips launch on February 28.) And since their announcement, everyone’s wanted to know: Is the 16-core, 32-thread 7950X3D the gaming monster we were expecting? The answer is yes…but a qualified yes.

You can read more technical details about these CPUs in our write-up about their initial reveal (plus watch our interview with AMD at CES about them), but we’re here to spill the details of our hands-on time with the flagship part. The deep dives are in our YouTube videos, which cover the full gamut of our benchmarks—including web browser and Microsoft Office performance—but for the biggest takeaways, read on.

This chip is definitely good in games

If the 7950X3D is your first exposure to a processor with AMD’s 3D V-Cache, you might glance at a benchmark like Cinebench R23 and think it’s not as good as Intel’s flagship Core i9-13900K and Core i9-13900KS. But while Cinebench R23 is one of the standard tests used to determine CPU performance, it doesn’t tell the whole story.

Gordon Mah Ung / PCWorld

Just this one benchmark isn’t enough information about this chip. It wouldn’t be about any processor, but with other parts we’ve reviewed, you may have sometimes seen the big bars in Cinebench (and other tests that isolate CPU performance) line up with the gaming results. That’s not the case here. In fact, even the individual game benchmarks don’t indicate a general trend, either. Not in isolation—you really need to see all the gaming test results in aggregate.

For example, take Watch Dogs Legion. On Ultra at 1080p, the AMD Ryzen 9 7950X3D offers a 28 percent uplift in performance compared to the standard 7950X. The jump up in World War Z is similarly impressive at 29 percent. This lead holds against the 13900KS and 13900K, too. In Watch Dogs Legion, the 7950X3D posted a 23 percent increase over the faster 13900KS and 25 percent over the standard 13900K. Meanwhile, in World War Z, it’s almost a 27 percent jump compared to the 13900KS and 26 percent versus the 13900K.

Gordon Mah Ung / PCWorld

Gordon Mah Ung / PCWorld

But on the flip side, in Metro Exodus, the Ryzen 9 7950X3D drags relative to the 13900K, with a drop of almost 15 percent in performance. And in Cyberpunk 2077, it just holds its own against the 13900K and KS, but still trails the vanilla non-3D Ryzen 9 7590X part by about 4 percent.

Does this mean the 7950X3D is a failure? Heck no, look at the frames it puts out. Even in Metro Exodus, you get 142fps on Extreme at 1080p. Fiddle with settings a little and you can easily get above 144fps if you’re driving a higher refresh-rate monitor.

Gordon Mah Ung / PCWorld

Gordon Mah Ung / PCWorld

Overall, in 7 of the 14 games we benchmarked, you’ll get a boost of 8 percent or more in performance compared to the 7950X, and almost 10 percent or more compared to the 13900K. But it also loses in six games to the 13900K—with a few of them very clear losses. So you’ll need to take stock of what kind of games you play (and at which resolutions), as well as your desired frame rates when evaluating if this chip is right for you.

Further reading: The best CPUs for gaming

It holds up in heavy multi-threaded workloads, too

Many people come into benchmarks looking for shutouts—a complete sweep on the leaderboards for a processor to qualify as good.

Like in games, the Ryzen 9 7950X3D doesn’t deliver an uncontested win in multi-threaded performance. You may actually be disappointed if you were expecting greater parity between the X and X3D parts compared to the Ryzen 5000 era. If you look at production benchmarks like Cinebench R23 and Handbrake, you’ll see the 7950X3D lag similarly behind its X counterpart as with the 5800X3D and the 5800X. The delta isn’t monumental, but among flagship CPUs, even small differences stand out.

Gordon Mah Ung / PCWorld

Gordon Mah Ung / PCWorld

This repeat of history doesn’t drop the Ryzen 9 7950X3D to trash tier, though. Arguably, the more important match-up is the 7950X3D against the 13900K and the 13900K. Those two chips carrying far more mindshare, given their reputations for top-notch gaming and multi-threaded performance. 

In heavy workloads, the 7950X3D is able to stay pace with those two Team Blue offerings. Not always—Cinebench R23 shows a gap in performance of a little over 10 percent. But in V-Ray’s ray-tracing benchmark and Blender’s rendering tests, the 7950X3D either edges out the 13900K and KS or pulls even.

Gordon Mah Ung / PCWorld

Gordon Mah Ung / PCWorld

So as with gaming, the Ryzen 9 7950X3D’s utility in production work will depend on what programs you use most.

Intel still dominates for production work

Unfortunately for AMD, Adobe’s Creative Suite is a set of apps many people use, especially those interested in a big, beefy CPU with many cores. And while few (if any) expected the Ryzen 9 7950X3D to deliver numbers that its 7950X sibling didn’t, its lower performance is tangible. In PugetBench’s Adobe Premiere Pro Standard Run benchmark, it’s a 30 percent drop in performance if you switch from a 13900K or KS to the 7950X3D.

Gordon Mah Ung / PCWorld

In PugetBench’s Adobe Photoshop test, the difference isn’t nearly so eye-watering; you’re looking at drop of almost 9 percent. It shrinks even further in Lightroom, with a roughly 3 percent gap.

Gordon Mah Ung / PCWorld

Gordon Mah Ung / PCWorld

Given its marketing as the “ultimate processor for gaming,” AMD isn’t pushing this chip as a productivity champion, but the 7950X3D is going to be a hard sell to heavy Premiere users. A processor that chews through your daily workload equally as well as it spits out tons of frames during off-hours looks a lot more appealing when you’re spending $1,000 to $1,300 in combination with a high-end AM5 motherboard. You get that with Intel, not AMD’s latest.

Die hopping is both simple and complicated

On the other hand, enthusiasts may have ample reason to take the 7950X3D out for a spin—just to see for themselves how the asymmetric stacking of L3 cache plays out in the real world. 

(Less-flush tech nerds may be wondering who spends over $1K just to tinker with new technology. Yes, it’s totally a thing.)

Both the 7950X3D and the 7900X3D are dual die chips, with one die layered with additional L3 cache and the second die tuned to run at higher frequencies. At their announcement, it was assumed that the stacked die would handle gaming, while the other would tackle background tasks and anything that benefited from bursts of faster clock speed.