AMD Ryzen 9 7950X3D processor with 3D V-Cache technology, 16 cores/32 skewed threads, Zen 4 architecture, 144MB cache, 120W TDP, up to 5.7GHz boost frequency, Socket AMD 5, DDR5 & PCIe 5.0

Product Information

The cache clearly does not help enough to give the Ryzen 9 7950X3D the performance advantage in any other CPU test in our suite. At the same time, its lower TDP and heat limit cause the 7950X3D to operate a bit slower and perform worse in almost every test except that one. The Ryzen 9 7950X is slightly faster in many of these tests, but, considering how much cheaper that chip is at list price, it’s a bit of a no-brainer which is the better value in this scenario. Underneath the integrated heat spreader (IHS), the Ryzen 9 7950X and Ryzen 9 7950X3D are very similar. You'll see a large central die on both chips, called the IO die, which contains an integrated graphics processor (IGP), the PCI Express controller, and other important components. AMD also includes two core complexes (CCXs) inside of each of these chips that hold the actual CPU cores and the cores' associated cache. The Xbox Game Bar contains a KGL (known good list) of games that it detects when active, thus triggering Game Mode (you can also instruct the game bar to recognize unknown games and/or other applications as games). The driver communicates with the Windows Game Mode feature, which becomes active when the Xbox Game Bar detects a game is running. Starting with the Ryzen 7000 series, AMD began adding low-power IGPs to all of its Ryzen desktop processors. (Before, it was limited to the subset known as the G-series.) But this has been a bittersweet change since its introduction. On the other hand, when a game like Total War: Warhammer III is running, energy efficiency on the 13900K goes right out the window and you start getting power draw above 330W just for the processor. This allows the 13900K to eke out up to 68 more fps than the 7950X3D (or 532 minimum fps for the 13900K to the 7950X3D's 464 minimum fps), but it literally needs almost 2.5 times as much power to accomplish this.

The fact performance of X3D CPU is all over the place bothers me too. Yes it's fast in -some- games, but then you get less overall performance in several important applications. If I just used my PC for gaming, I would have bought a console, I don't like the idea of having to make a trade-off with X3D CPU. I already have DDR4. AMD expects me to just throw this into the trash and buy expensive new DDR5 for a 1% difference in performance. It even bothers me from an e-waste perspective, let alone the financial cost. I tested the AMD Ryzen 9 7900X3D inside of a newly built machine utilizing Kingston Fury Beast DDR5 RAM, an Nvidia RTX 4090, and a brand new RM1000X PSU. The chip was utilized heavily for gaming in the benchmarked titles as well as in games such as Mortal Kombat 11, Cyberpunk 2077, and Tekken 7. When trying to come to an overall assessment of these chips' relative performance, it's better to look at the measurable performance gains between chips across different tests. This makes for a much more sensible average when all is said and done than averaging absolute scores where one CPU test with one very large result can badly skew a final average.The tuned setting did deliver higher performance, but only in the same way you can tune an F1 car to run above tolerances only to explode as it crosses the finish line. I could catch some higher benchmark numbers, but the system was in no way stable.

In short, this makes the Ryzen 9 7950X3D not particularly competitive against any of Intel’s competing processors either. In almost every test, the Core i9-13900K is simply faster while also costing less. Gaming Tests Creative performance is a measure of how well the processor performs in several popular creative workloads like Handbrake, Blender, and Adobe Photoshop. Where possible, I explicitly disable GPU accelerated operations or test rendering using the CPU by itself. Both the 7950X3D and the 7900X3D have two eight-core Core Compute Die (CCD) chiplets, marking the first time AMD has brought the 3D V-Cache tech to a multi-CCD processor. The above image shows that AMD only mounts a single 7nm SRAM chiplet atop one eight-core CCD, leaving the other CCD bare. Jan 5th 2023 AMD Confirms Ryzen 9 7950X3D and 7900X3D Feature 3DV Cache on Only One of the Two Chiplets (164) While a higher TDP usually relates to higher performance, the inclusion of the added 3D V-cache means that the processor can access a larger pool of superfast cache memory, which is even more useful when gaming than just throwing raw power at the problem. With its own dedicated extra cache, there are fewer fetch operations to the PC's main memory, so the chip runs more efficiently, and potentially cooler under load.

Language

When it comes to the Intel Core i9-13900K, it too outperforms the 7950X3D in single core performance, with the 7950X3D running about 12% slower than the 13900K on average. The difference between the two tightens on multicore performance, with the 7950X3D running about 5% slower in multicore on average. Editors' Note, March 2, 2023: Some scrutiny by Tom's Hardware scrutiny by Tom's Hardware and online commenters pointed out that our integrated graphics (IGP) testing numbers for the earlier Ryzen 9 7950X chip were unnaturally low; this was likely due to early-driver issues that only became evident with this review of the 7950X3D, and made the 7950X3D's IGP look like a leap forward by comparison. We have retested the Ryzen 9 7950X and updated the numbers in the IGP testing table here and in that original review, and made minor tweaks to this article's intro and IGP Testing section to reflect the new numbers. We'll also be retesting the IGPs on the Ryzen 7 7700 and 7700X in the coming days. The original, fundamental conclusions we made about this chip, though, have not changed.] If the software detects a certain high level of thread utilisation, however, it will spin up that dormant chiplet and bring it online if its extra core count is needed. The score in 3DMark obtained by the Ryzen 9 7950X3D is slightly lower than the one obtained by the Ryzen 9 7950X, but by so slim of a margin that it's essentially a tie. These two chips tie in other tests as well but, in F1 22, the Ryzen 9 7950X3D holds a decisive advantage over its similarly named counterpart while also narrowly passing the Intel competition. My PC runs every game that I play without issues. And with the recent GPU upgrade I'll be happy for another year or so and will upgrade when needed.

The amount of cache on CPUs has grown over time usually by very small steps, but there have also been a few times when AMD and Intel have significantly jumped up the amount of cache in an effort to boost performance. These efforts in the past have seen mixed results with, at the best of times, a modest performance gain occurring and, at the worst of times, nothing really changing. In part, the mixed results are due to software development, as apps need to be explicitly programmed to take advantage of the added cache for a noticeable improvement to occur. AMD’s decision to add extra cache to only one of these chips is somewhat unconventional, as the two CCXs will have different performance characteristics as a result, but there’s a logical reason behind it. The added cache chip and its position on top of one of the CCXs introduce power and heat considerations to the CPU that didn’t exist before.

A chip that delivers on the title of best gaming CPU better than any I've tested before, but it's not quite the one chip to do it all.

AMD's Ryzen 7000X3D gaming-focused processors finally have a release date - or rather, two release dates. The Ryzen 9 7900X3D and 7950X3D will debut on February 28th, with the 7800X3D arriving on April 6th. AMD designed the Ryzen 9 7950X3D based on its Zen 4 microarchitecture, which I went over in greater detail in my review of the Ryzen 9 7950X, linked above. Instead of going over the Zen 4 nuances again (hit the review for more detail if desired), let’s focus on what’s unique with the Ryzen 9 7950X3D. AMD's X670E, X670, B650E and B650 motherboards all support Ryzen 7000 out of the box. X670E offers PCIe 5.0 throughout, X670 offers PCIe 5.0 for storage and graphics, and B650 offers PCIe 5.0 for storage only. In general, as you progress from X670E to B650, expect fewer features, fewer PCIe lanes and lower prices - although no doubt we'll see cheaper X670E and premium B650 boards that will blur the lines between the four different chipsets. X670 and X670E debut in September, while B650 and B650E arrive in October. Anandtech has a great article that goes more into depth on the differences between the various chipsets. What memory is best for Ryzen 7000? There are some tradeoffs to attaining the leading gaming performance, though — some games don’t benefit from the 3D V-Cache, and the chip isn’t as fast in productivity apps as competing Intel chips. The 7950X3D also suffers from many of the pain points we’ve already seen with the fledgling AM5 platform — the motherboard ecosystem is more expensive than Intel’s offerings, and the strict requirement for DDR5 significantly increases costs compared to Intel’s DDR4-friendly platform.