The AMD Ryzen 7 5800X3D vs Intel Core i7-12700K and Intel Core i9-12900K is a surprisingly close battle for gaming dominance, but AMD has leveraged a completely new cutting-edge 3D SRAM packaging technology, called 3D V-cache, to fuse an additional slab of L3 cache atop the chips’ die, thus bringing capacity up to an unheard-of 96MB of L3.
We’ll throw in the early spoiler: AMD’s $449 Ryzen 7 5800X3D is faster in gaming than the $409 Core i7-12700K and the $589 Core i9-12900K, but the chip comes with significant caveats as AMD tries to refuel its aging Zen 3 architecture for one more run at the top of our list of the best CPUs for gaming and CPU Benchmark hierarchy.
The Zen 3 architecture in the Ryzen 5000 chips was AMD’s first microarchitecture that fully surpassed Intel in every conceivable metric, vastly upsetting the AMD vs Intel competition. However, Intel’s counterstrike with Alder Lake last year flipped the tables.
Alder Lake’s new hybrid design represents the company’s most disruptive architectural shift in a decade, and it paid massive dividends as it beat AMD’s entire product stack in both performance and pricing. That’s not to mention that Intel also holds the connectivity lead with the latest interfaces, like DDR5 and PCIe 5.0, while AMD’s AM4 platform soldiers on with the previous-gen DDR4 and PCIe 4.0.
AMD’s new stacking tech yields amazing gaming performance improvements from Zen 3 that we would normally only expect from a new architecture. The 5800X3D drops right into existing motherboards, offering an affordable upgrade path for Ryzen owners, and it’s also appealing to new system builders. The lower AM4 motherboard pricing is an advantage in the face of continued supply disruptions, inflation, and the fact that Alder Lake motherboards simply tend to be expensive due to their faster interfaces.
But the competition isn’t as close as this might lead you to believe. AMD’s 3D V-Cache tech comes with clock speed compromises, and the chip doesn’t support core frequency overclocking. Additionally, the extra L3 cache doesn’t confer benefits in standard desktop PC applications – the advantages come almost purely in gaming.
That makes this anything but the clear-cut victory it appears to be on the gaming benchmark charts. Below we’ve put the Ryzen 7 5800X3D vs Core i7-12700K and Core i9-12900K through a six-round faceoff to see which chip takes the crown in our gaming and application benchmarks along with other key criteria like power consumption and pricing. Let’s see how the chips stack up.
Features and Specifications: Ryzen 7 5800X3D vs Core i7-12700K and Core i9-12900K
|Street / MSRP||Cores | Threads||P-Core Base/Boost||E-Core Base/Boost||L3 Cache||TDP / PBP / MTP||DDR4-3200|
|Core i9-12900KS||$739||8P + 8E | 16 Cores / 24 threads||3.4 / 5.5 GHz||2.5 / 4.0 GHz||30 MB||150W / 241W||DDR4-3200 / DDR5-4800|
|Core i9-12900K / KF||$589 (K) – $564 (KF)||8P + 8E | 16 Cores / 24 threads||3.2 / 5.2 GHz||2.4 / 3.9 GHz||30MB||125W / 241W||DDR4-3200 / DDR5-4800|
|Ryzen 7 5800X3D||$449||8P | 16 threads||3.4 / 4.5 GHz||–||96MB||105W||DDR4-3200|
|Ryzen 7 5800X||$350 ($449)||8P | 16 threads||3.8 / 4.7 GHz||–||32MB||105W||DDR4-3200|
|Core i7-12700K / KF||$409 (K) – $384 (KF)||8P + 4E | 12 Cores / 20 threads||3.6 / 5.0 GHz||2.7 / 3.8 GHz||25MB||125W / 190W||DDR4-3200 / DDR5-4800|