AMD launched the Ryzen 7 5800X3D in 2022, bringing the world’s first processor with 3D V-Cache to market. It stays among the finest gaming CPUs obtainable in 2023, providing credible competitors to AMD’s Ryzen 7000 sequence and Intel’s Raptor Lake processors. It’s now not alone, although, with newer Ryzen 7000-series 3D VCache CPUs poised to supply even better gaming efficiency.

Whereas we wait to see if these new 3D V-Cache chips are set to be the most effective processors, right here’s every part you could find out about 3D V-Cache.

What’s AMD 3D V-Cache?


AMD 3D V-Cache is a packaging know-how that stacks further layers of cache on prime of a CPU. It sounds complicated, and from an engineering perspective, it’s, nevertheless it’s not laborious to know what AMD’s tech is doing. As an alternative of laying the cache subsequent to the processor, as has been historically carried out, AMD is stacking the cache on prime to squeeze extra on the chip.

It’s a distinct method to lay out a processor, and due to developments in how CPU makers put parts on a chip, AMD is ready to squeeze on extra cache with out making a large CPU. Initially, 3D V-Cache was restricted to an eight core CPU within the 5800X3D, nevertheless, with the Ryzen 7000 era, AMD launched the eight core 7800X3D, the 12-core 7900X3D, and the 16-core 7950X3D.

Nevertheless, this isn’t the entire image. Whereas these higher-end CPUs do function greater than eight cores, the 3D V-Cache is barely utilized to certainly one of their core complicated dies (CCD). Within the case of the 7900X3D, it has six cores with 3D V-Cache obtainable, clocked at a decrease enhance clock, whereas the opposite CCD doesn’t have the 3D V-Cache, however is ready to function at greater frequencies. The identical goes for the 7950X3D, which has eight cores with 3D V-Cache and eight cores operating on the greater enhance clock.

The concept is to offer a gaming benefit, whereas nonetheless having the high-speed cores obtainable for duties that demand clock velocity greater than cache. It’s a part of why AMD was in a position to ship better productiveness efficiency in sure purposes with these CPUs, a minimum of based on its first social gathering check numbers. It additionally claims to have labored extensively with Microsoft and sport builders to make sure that the distinctive scheduling wants of such a CPU are met and catered for, in order that video games and purposes can finest reap the benefits of these intriguing CPUs.

How does 3D V-Cache work?

Your processor has three ranges of cache, with the bottom being L3, or stage 3, cache. Every cache stage is smaller in dimension, however sooner in velocity, appearing as a reminiscence chain to your processor that may serve up directions as they’re wanted.

Take into consideration cache like a provide chain. Your RAM is sort of a nationwide warehouse, the L3 cache is a regional distribution middle, and so forth by means of the L2 and L1 caches. For 3D V-Cache, we’re speaking about further L3 cache, the slowest stage in your CPU. That’s solely comparatively gradual, although — every cache layer continues to be considerably sooner than your laborious drive or RAM.

Extra L3 cache permits the processor to stream and retailer extra directions, lowering the variety of instances it wants to drag directions from RAM. With the 5800X3D operating at decrease clock speeds due to limitations of the 3D V-Cache voltage and temperature thresholds, it was nice in gaming, however some duties suffered. With the Ryzen 7000 3D V-Cache CPUs that provide each excessive clock speeds on some cores and V-Cache on the others, AMD hopes to have solved that drawback.

Why does AMD use 3D V-Cache?

There are a couple of explanation why AMD would quite make a whole chip line with further cache quite than put extra cache within the CPU itself, which has been the norm up so far. For starters, 3D V-Cache is extra customizable and may be added optionally to processors that might really profit from it. Though additional cache does have its use exterior video games, there are various packages that don’t profit from having extra cache, together with benchmarks like Cinebench R23.

Cache can also be problematic for manufacturing CPUs. One of many key features of creating CPUs is the method or node, which determines efficiency, energy effectivity, and transistor density traits. Newer nodes enable for bodily smaller transistors and thus extra compact processors, however cache is rather more troublesome to shrink than different parts in a CPU, such because the cores. Since cache doesn’t profit from being in cutting-edge nodes, it may be cheaper to simply make a cache chip on an older and cheaper node.

Which CPUs have 3D V-Cache?

AMD initially launched the 5800X3D in 2022. This last-generation, Zen 3 CPU has eight cores and 96MB of L3 cache because of the extra 64MB of 3D V-Cache. This has now been joined by the new-generation 7800X3D, 7900X3D, and 7950X3D.

AMD Ryzen 9 7950X3D AMD Ryzen 9 7900X3D AMD Ryzen 7 7800X3D AMD Ryzen 7 5800X3D
Cores 16 12 8 8
Threads 32 24 16 16
L2 Cache 16MB 12MB 8MB 4MB
L3 Cache 128MB 128MB 96MB 96MB
Base clock As much as 4.2GHz As much as 4.4GHz As much as 4.4GHz As much as 3.4GHz
Increase clock As much as 5.7Ghz As much as 5.6GHz As much as 5Ghz As much as 4.5GHz
TDP 120W 120W 120W 105W

AMD has managed to have further cores with this era’s 3D V-Cache CPUs, although solely half of them on every of the highest two chips have it obtainable. That makes the 7900X3D an attention-grabbing CPU, because it solely has six cores with 3D V-Cache obtainable, whereas each the 7800X3D and 7950X3D have eight apiece. We’ll must see if that makes the bookend CPUs of this era the most effective for gaming.

CPUs from this era additionally function at greater clock speeds throughout the board, though the highest frequencies can be reserved for the cores with out the 3D V-Cache. We don’t but know what frequencies they’ll run at in on a regular basis use, and might have to attend till we get our fingers on the chips to search out out.

We do know, nevertheless, that AMD has enabled some measure of overclocking with this era, which wasn’t the case with the 5800X3D. AMD has enabled Precision Increase Overdrive (PBO) and AMD’s Curve Optimizer, which collectively ought to assist fans increase clock speeds and decrease voltages by a small margin — although AMD has mentioned that it doesn’t count on large positive aspects with these options.

Thermal design energy (TDP) is flat throughout all CPUs, which can imply there’s further overclocking headroom on non-3D V-Cache cores, and that these chips may find yourself being essentially the most environment friendly of their era.

3D V-Cache efficiency

In our Ryzen 7 5800X3D evaluate, we discovered that it was, on common, the quickest gaming CPU obtainable, beating out even the Core i9-12900K by a hair. Since then we’ve seen next-generation CPUs from AMD and Intel dethrone the 5800X3D, nevertheless it nonetheless remained aggressive regardless of being a era behind and several other hundred {dollars} cheaper than the flagships.

We plan to check the Ryzen 7000 3D V-Cache CPUs once we get our fingers on them within the coming weeks, however for now, listed here are our check numbers from the 5800X3D evaluate:

AMD Ryzen 7 5800X3D AMD Ryzen 9 5950X Intel Core i9-12900K
3D Mark Time Spy  17,078 17,922 19,396
Purple Useless Redemption 2 119 fps 127 fps 132 fps
Murderer’s Creed Valhalla 121 fps 119 fps 118 fps
Forza Horizon 4 247 fps 234 fps 250 fps
Fortnite 205 fps 182 fps 205 fps
Halo Infinite 127 fps 119 fps 113 fps
Cyberpunk 2077 128 fps 128 fps 122 fps
Far Cry 6 147 fps 115 fps 141 fps
Civilization VI (flip time, decrease is healthier) 6.6 seconds 7.5 seconds 7.3 seconds

An attention-grabbing outlier was Purple Useless Redemption 2, the place the 5800X3D was considerably slower than the 12900K and in addition the 5950X. This in all probability wasn’t a benchmarking error, however quite a legit loss attributable to the 5800X3D’s a lot decrease clock velocity; the 5800X3D boosts as much as simply 4.5GHz whereas the 5950X can obtain 4.9GHz. Clock velocity continues to be a big think about CPU gaming efficiency and may make a giant distinction in some video games. It will likely be attention-grabbing to see if the brand new design of Ryzen 7000 3D V-Cache CPUs fixes this drawback.

With early stories that counsel the brand new CPUs are as much as 25% sooner than Intel’s 13900K, we’re excited to see what these CPUs can do.

A packaging revolution?

AMD made a giant deal when it launched 3D V-Cache, and for good motive. The 5800X3D was in a position to go toe to toe with rather more highly effective processors, and the next-generation Ryzen 7000 variants look set to steal the gaming crown from Intel, even with its rumored 6Ghz 13900KS ready within the wings.

It’s not but clear if this can be a know-how that may profit everybody that deserves to be a part of the extra mainstream CPU traces, nevertheless it’s clear that gaming sees a giant enhance. The 3D V-Cache know-how additionally works as an excellent mid-generation refresh for AMD processors, serving to it keep one step forward of the competitors — even when it doesn’t precisely encourage players to be early adopters of recent AMD {hardware}.

On a technical stage, 3D V-Cache is greater than advertising hype, and has the potential to even enhance some non-gaming duties if AMD graphs are to be believed. We’ll want to check the brand new {hardware} ourselves to know for certain simply how good it’s, but when the 5800X3D is something to go by, 3D V-Cache know-how continues to be one thing to be very enthusiastic about.

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