AMD Ryzen 7 5800X3D evaluation: cache cash

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The $449/£429 Ryzen 7 5800X3D is one thing a little other from AMD, a processor that exists to exhibit the ability of the company’s 3-d V-Cache design for its upcoming Ryzen CPUs and struggle off Intel’s 12900KS for the identify of ‘quickest gaming processor’. Additionally it is one thing of a final hurrah for the strangely long-lived AM4 platform, which debuted again in 2017 and outlasted part a dozen Intel generations as Ryzen CPUs progressed in leaps and boundaries.

So what precisely is a 3-d V-Cache anyway? Let’s get started with the fundamentals. You’ll be able to recall to mind a processor’s cache as a spot to retailer information it is these days operating on – a little like RAM, however as a result of it is within the CPU it’s an order of magnitude sooner to get entry to and an order of magnitude smaller in relation to the quantity of knowledge it might retailer. Fashionable processors most often use 3 ranges of cache – L1, L2, L3 – with L1 cache being the quickest to get entry to however the smallest, L2 being slower however better, and L3 being slower and bigger once more. It is this 3rd degree of cache that AMD has modified, transferring from a conventional 2D design to a 3-d design, a stack of cache that takes up extra vertical area. This permits for far more information to be saved within the CPU without delay, thus expanding the probabilities that the information wanted is already within and rushing up any next processing.

AMD is slated to make use of this era for its long run Zen 4 processors, however within the right here and now it is simply this one particular 5800X3D, an upgraded model of the Ryzen 7 5800X that introduced again in 2020. In comparison to the 5800X, the 5800X3D trades a little of frequency and a few overclocking controls for a considerably better 96MB L3 cache – triple the scale of the 5800X’s.

CPU design Spice up Base L3 cache TDP RRP
Ryzen 5950X Zen 3 16C/32T 4.9GHz 3.4GHz 64MB 105W $799
Ryzen 5900X Zen 3 12C/24T 4.8GHz 3.7GHz 64MB 105W $549
Ryzen 5800X3D Zen 3 8C/16T 4.5GHz 3.4GHz 96MB 105W $449
Ryzen 5800X Zen 3 8C/16T 4.7GHz 3.8GHz 32MB 105W $449
Ryzen 5700G Zen 3 8C/16T 4.6GHz 3.8GHz 16MB 65W $359
Ryzen 5600X Zen 3 6C/12T 4.6GHz 3.7GHz 32MB 65W $299
Ryzen 5600G Zen 3 6C/12T 4.4GHz 3.9GHz 16MB 65W $259

Sooner than we get into the primary check effects, let’s in short duvet the rig we are the usage of. For the AMD facet, we are the usage of an Asus ROG Crosshair 8 Hero, whilst Eleventh-gen Intel will get an Asus ROG Maximus Z590 Hero and Twelfth-gen will get the Asus ROG Z690 Maximus Hero – all high-end forums for his or her respective platforms. DDR4 motherboards used G.Ability 3600MT/s CL16 reminiscence, whilst Twelfth-gen Intel were given the advantage of sooner however higher-latency Corsair 5200MT/s CL38 RAM.

The AMD and Eleventh-gen Intel CPUs have been cooled with an Eisbaer Aurora 240mm AiO, whilst the Twelfth-gen checking out was once carried out with an Asus ROG Ryujin 2 360mm AiO. (And to reply to the most obvious query: 240mm and 360mm AiOs generally tend to supply an identical efficiency according to our checking out – particularly for an outside check bench in cool (21C) ambient stipulations. The one distinction has a tendency to be fan velocity, which is increased at the 240mm than the 360mm.) Our rig was once finished with a 1000W Corsair RM1000x energy provide from Endless Computing.

As a way to scale back run-to-run variance and make sure we are CPU-limited up to imaginable, we are the usage of the Asus ROG Strix 3090 OC Version. It is a large three-slot, triple-fan design that assists in keeping the cardboard strangely cool and quiet.

One of the vital largest questions over the 5800X3D is precisely the place that upgraded cache will turn out to be useful – as a result of if a sport or different utility does not are compatible a selected efficiency profile, it is going to see no efficiency benefit in any respect operating at the 5800X3D – and certainly, it is going to even run worse because of the clock velocity that AMD has sacrificed to make the design paintings.

To determine, now we have examined the 5800X3D in a variety of content material advent and gaming situations – towards the unique 5800X and quite a few different contemporary AMD and Intel processors. We are hoping to peer some large efficiency will increase, particularly in video video games, however we’re going to get started with a few fast content material advent benchmarks: a Cinebench R20 3-d render and a Handbrake video transcode.

CB R20 1T CB R20 MT HB h.264 HB HEVC HEVC Energy Use
Core i9 12900K 760 10416 70.82fps 29.26fps 373W
Core i7 12700K 729 8683 57.64fps 25.67fps 318W
Core i5 12600K 716 6598 44.27fps 19.99fps 223W
Core i5 12400F 652 4736 31.77fps 14.70fps 190W
Core i9 11900K 588 5902 41.01fps 18.46fps 321W
Core i5 11600K 541 4086 29.00fps 13.12fps 250W
Ryzen 9 5950X 637 10165 70.28fps 30.14fps 237W
Ryzen 7 5800X3D 546 5746 42.71fps 19.10fps 221W
Ryzen 7 5800X 596 6118 44.18fps 19.50fps 229W
Ryzen 5 5600X 601 4502 31.75fps 14.43fps 160W

Neither content material advent result’s in particular spectacular for the 5800X3D, which outperforms the 5600X and Intel 12400F however falls at the back of its erstwhile competition just like the 12900K, 12700K and 5800X (the latter via between two to 6 p.c). This is not a large wonder – neither job would logically have the benefit of having better cache, so that you handiest see the impact of the brand new CPU’s diminished core clocks in comparison to the usual 5800X. Then again, the consequences are not disastrous both; that is nonetheless a superbly succesful CPU for those duties that handily outperforms prior generations, simply no longer a class-leading one.

With the ones out of the way in which, let’s transfer onto the joys stuff: testing how the 5800X3D plays in a variety of video games. Click on the fast hyperlinks underneath to transport onto the titles you might be maximum excited about, or hit the ‘subsequent web page’ button to take all of it in!

AMD Ryzen 7 5800X3D research

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