Ryzen 7 7800X3D + RX 7900 XTX bottleneck calculator

Check whether AMD Ryzen 7 7800X3D or AMD Radeon RX 7900 XTX limits FPS at 1080p, 1440p, and 4K. UserBenchmark-powered bottleneck estimate with a clear upgrade direction.

Your build

AMD Ryzen 7 7800X3D

8C / 16T · up to 5 GHz · 120 W · AM5 · 96 MB L3

AMD Radeon RX 7900 XTX

24 GB GDDR6 · 384-bit · 6,144 shaders · PCIe 4.0 x16

Pick a title to judge balance for that game, or leave on Any game.

Typical presets

Scores from UserBenchmark. Specs shown for planning only.

BalancedWell matched
AMD Ryzen 7 7800X3DAMD Radeon RX 7900 XTX

Ryzen 7 7800X3D + RX 7900 XTX

Balanced at 1440p — neither side is holding the other back in a meaningful way.

−100% CPU limitingBalanced+100% GPU limiting
0%
−100%0%+100%

Bottleneck gap

~14%

Limiting side

Balanced

CPU index

100

UB 112%

GPU index

116

UB 116%

AMD Ryzen 7 7800X3D

CPU specs

Cores / threads
8 / 16
Clock (base / boost)
4.2 / 5 GHz
TDP
120 W
Socket
AM5 (LGA 1718)
L3 cache
96 MB
Architecture
Raphael (Zen 4)

Price comparison

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AMD Radeon RX 7900 XTX

GPU specs

Memory
24 GB GDDR6
Bus width
384-bit
GPU clock
2500 MHz
Memory clock
2500 MHz
Shaders
6,144
Interface
PCIe 4.0 x16

Price comparison

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What this means

This pairing looks well matched at the selected resolution for this workload. Spend on the display, storage, or cooler before chasing a one-sided upgrade.

Performance across resolutions

A pair that looks CPU-limited at 1080p can flip toward GPU-limited at 4K. Tap a card to focus that resolution.

Scores use UserBenchmark Average Bench (CPU vs i9-9900K ≈ 100%, GPU vs RTX 5070 ≈ 100%), then normalized and weighted by resolution and game factor. Estimates for planning — not a substitute for in-game utilization overlays.

Comparing AMD Ryzen 7 7800X3D (UserBenchmark Average Bench 112%) with AMD Radeon RX 7900 XTX (116%). At 1440p, this pairing reads as balanced with roughly a 14% capability gap.

Results by resolution

ResolutionVerdictGap
1080pCPU-limited~27%
1440pBalanced~14%
4KGPU-limited~17%

This pairing looks well matched at the selected resolution for this workload. Spend on the display, storage, or cooler before chasing a one-sided upgrade.

Scores used

  • CPU: AMD Ryzen 7 7800X3D — 112%
  • GPU: AMD Radeon RX 7900 XTX — 116%
  • Calibration anchors: CPU 112% · GPU 100%

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