RX 7800 XT vs RX M 7900 XTX
Head-to-head specifications
| Metric | RX 7800 XT | RX M 7900 XTX | Difference |
|---|---|---|---|
| 3DMark Time Spy | 7,837 | 10,966 | -28.5% |
| Avg FPS @ 1080p | 72 | 93 | -22.6% |
| Avg FPS @ 1440p | 44 | 57 | -22.8% |
| Avg FPS @ 4K | 24 | 32 | -25.0% |
| FP32 compute (TFLOPS) | 18.7 | 26.1 | -28.5% |
| VRAM | 16 GB GDDR6 | 24 GB GDDR6 | — |
| Memory bandwidth (GB/s) | 448 | 672 | -33.3% |
| TDP (W) | 263 | 230 | — |
| Stable Diffusion (it/s) | 2.8 | 3.9 | -28.2% |
| LLM inference (tokens/s) | 35 | 53 | -34.0% |
- RX M 7900 XTX averages 57 fps at 1440p versus 44 fps — about 23% faster.
- RX M 7900 XTX draws less power (230W vs 263W).
Verdict: RX 7800 XT or RX M 7900 XTX?
RX 7800 XT advantages
- No decisive advantage on the tracked metrics.
RX M 7900 XTX advantages
- 1440p gaming (+23%)
- 4K gaming (+25%)
- Synthetic benchmark performance (+29%)
- Video memory (+33%)
- Memory bandwidth (+33%)
- AI image generation (+28%)
- Local LLM inference (+34%)
- Power efficiency (+13%)
Which should you choose?
- Choose the RX M 7900 XTX if you game at 1440p.
RX 7800 XT vs RX M 7900 XTX: which should you choose?
RX 7800 XT — AMD desktop graphics card (2023, RDNA 3) with 16 GB of GDDR6, averaging 44 fps at 1440p; launched at $499.
RX M 7900 XTX — AMD desktop graphics card (2022, RDNA 3) with 24 GB of GDDR6, averaging 57 fps at 1440p.
RX 7800 XT vs RX M 7900 XTX: RX M 7900 XTX is faster for gaming. RX M 7900 XTX averages 57 fps at 1440p versus 44 fps — about 23% faster. RX M 7900 XTX draws less power (230W vs 263W).
1080p, 1440p and 4K
At 1440p — the most common enthusiast resolution — the RX M 7900 XTX averages 57 fps against 44. At 4K (24 vs 32 fps) VRAM (16GB vs 24GB) and memory bandwidth matter more.
AI and creator workloads
Beyond gaming, the RX M 7900 XTX is quicker for AI image generation (3.9 vs 2.8 it/s in Stable Diffusion) and local LLM inference (53 vs 35 tokens/s), which increasingly matters for creators and developers.
Power and value
Board power is 263 W versus 230 W, which affects PSU headroom, case cooling and noise.
The verdict
Both are credible choices in the graphics card comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the RX 7800 XT better than the RX M 7900 XTX?
RX M 7900 XTX is the clearly stronger overall choice, winning most of the dimensions that matter. RX M 7900 XTX averages 57 fps at 1440p versus 44 fps — about 23% faster.
What is the main difference between the RX 7800 XT and the RX M 7900 XTX?
RX M 7900 XTX averages 57 fps at 1440p versus 44 fps — about 23% faster. RX M 7900 XTX draws less power (230W vs 263W).
Which should I choose?
Choose the RX M 7900 XTX if you game at 1440p.
Methodology
Graphics cards are compared on 3DMark Time Spy scores, average gaming frame rates at 1080p/1440p/4K, FP32 compute throughput, VRAM capacity and type, memory bandwidth, board power (TDP) and launch MSRP — plus AI workload throughput (Stable Diffusion iterations/s and local LLM tokens/s) where measured. Vintage and server GPUs without modern benchmark results are compared on specifications only, clearly labelled. Frame rates are averages across a game suite at high settings; specific titles vary.