I currently have a Ryzen 7 5700X and a Radeon 9070 XT. The games I play benefit significantly from X3D cache, and I need 32GB of memory. With current DDR5 prices, would moving to a Ryzen 7 7800X3D be worth it compared with upgrading to a 5800X3D and staying on DDR4? I would need a new motherboard either way because my current board has inadequate VRMs, and I'm located in the UK.
4 Answers
The performance gap depends heavily on the game, resolution, and frame-rate target. As a rough comparison, the 5700X, 5800X3D, and 7800X3D tend to show only a modest step up between each model in broad benchmarks, while X3D chips can pull further ahead in CPU-limited games. With a 9070 XT, the 7800X3D makes the most sense if you’re targeting high-refresh gaming and want a longer-lived platform; otherwise, a 5800X3D is a sensible lower-cost upgrade.
Look for UK bundle deals that include an AM5 CPU, motherboard, and 32GB of DDR5. Bundles can make the platform switch much more reasonable than buying each part separately. If DDR5 alone is around £400 in your area, though, the 5800X3D plus DDR4 may still be the better-value option unless you find a particularly good bundle.
The 7800X3D is the stronger match for the 9070 XT, but the difference from a 5800X3D isn’t enormous. Since both CPUs have the same amount of L3 cache, the 5800X3D can still deliver excellent gaming performance while letting you use cheaper DDR4. However, because you need a motherboard replacement anyway, compare the complete prices rather than just the CPU. If an AM5 motherboard, 32GB of DDR5, and a 7800X3D are only somewhat more expensive, AM5 gives you a newer upgrade path.
I’d need a new motherboard either way since the VRMs on my current board aren’t good enough.
I’d avoid paying an inflated price for a 5800X3D. If the total cost of the 5800X3D, motherboard, and DDR4 is close to an AM5 setup, choose AM5 instead. It gives you DDR5 support and more room for future CPU upgrades. If the AM4 route is substantially cheaper, the 5800X3D should still be fast enough for the 9070 XT in most games.
The memory upgrade is currently coming out to roughly £400, so that makes the AM5 option much harder to justify.