I'm choosing between the Ryzen 7 9700X and Ryzen 7 7800X3D for a gaming-focused system. The price difference is only about €60, and I'll be pairing the CPU with an RTX 4080 Super.
I usually play at 4K with DLSS set to Performance. My games include heavily modded Skyrim setups such as Nolvus and LoreRim, heavily modded Fallout 4, Starfield, Cyberpunk 2077, Resident Evil Requiem, Death Stranding 2, Forza Horizon 6, and Baldur's Gate 3.
Looking at 4K benchmarks, I've noticed that the two CPUs can be fairly close in some games, while the 7800X3D pulls ahead in more CPU-heavy titles. Since DLSS Performance renders internally at a lower resolution before upscaling, I'm wondering how much that shifts the workload back toward the CPU compared with native 4K.
How beneficial is the 7800X3D's 3D V-Cache in this situation? Would the newer Zen 5 architecture of the 9700X make it a better long-term choice, or is the 7800X3D's gaming performance and extra CPU headroom more valuable? What actually happens when a processor falls below a game's recommended CPU requirement, especially when playing at 4K? For heavily modded games, should I focus more on average FPS or on 1% lows and consistent frametimes?
4 Answers
Both processors are good choices and either should handle 4K gaming well. The 9700X is a newer Zen 5 part and may be the more balanced option if you also do productivity work, encoding, compiling, or other CPU-heavy tasks. However, they both have eight cores, so the advantage there isn’t simply a difference in core count.
For a primarily gaming-focused build, especially with demanding mods, I’d lean toward the 7800X3D at this price difference. If the price gap were much larger, choosing the 9700X would be easier to justify.
DLSS Performance reduces the GPU’s rendering workload, but it doesn’t remove the CPU workload. The CPU still handles game logic, draw calls, simulation, asset streaming, and mod-related processing. In fact, lowering the internal resolution can make the CPU a limiting factor sooner if the GPU is no longer fully occupied.
At native 4K, the GPU usually dominates more often, which can narrow the gap between processors. With DLSS Performance, the 7800X3D has a better chance of showing an advantage in CPU-heavy or high-refresh scenarios.
For only €60 more, I’d choose the 7800X3D. It gives you more headroom in CPU-limited games, and the extra cache can help both average performance and especially 1% lows. It’s also still a very capable eight-core CPU for general use, so you wouldn’t be giving up much outside gaming.
The difference between the 7800X3D and newer gaming-focused chips is relatively small in many cases, while the 9700X generally isn’t as fast for gaming as the X3D models. With an RTX 4080 Super and a goal of keeping the system for several years, the additional €60 seems worthwhile.
For Nolvus, LoreRim, and heavily modded Fallout 4, average FPS doesn’t tell the whole story. Mods can increase simulation, scripting, object visibility, and asset-streaming demands, so 1% lows and frametime consistency are often more noticeable than a small difference in the average benchmark.
Being below a game’s recommended CPU specification usually doesn’t mean the game will refuse to run. It generally means you may need to lower CPU-heavy settings, accept lower minimum FPS, or experience more stutter in busy scenes. At 4K, the GPU may hide some CPU differences, but DLSS Performance can expose them again. The 7800X3D’s cache and additional gaming headroom make it the safer choice for this particular use case.
They have the same number of cores, so the 9700X’s broader appeal comes from its newer architecture and general-purpose performance rather than having more cores.