Radeon RX 550X 640SP vs Radeon RX 550
The Radeon RX 550X 640SP and Radeon RX 550 trade blows — they land in the same performance tier, so pick on price, VRAM (2GB vs 2GB), and power draw rather than raw speed.
Spec comparison
FPS by game
Estimated average frame rates assuming a capable CPU, from the same model that powers the live BuildForge analyzer. Real numbers vary with settings, drivers, and the rest of your build.
| Game | 1080p | 1440p | 4K |
|---|---|---|---|
| Counter-Strike 2 | 180/180 | 130/130 | 80/80 |
| Fortnite | 50/50 | 36/36 | 22/22 |
| Call of Duty: Warzone | 50/50 | 36/36 | 22/22 |
| Elden Ring | 38/38 | 28/28 | 16/16 |
| Baldur's Gate 3 | 38/38 | 28/28 | 16/16 |
| Cyberpunk 2077 | 22/22 | 16/16 | 9/9 |
Where to buy
Will your CPU bottleneck either card?
A faster GPU only helps if the rest of your build can feed it. Drop in your full specs and BuildForge tells you the real bottleneck, FPS for the games you play, and the upgrade that actually moves the needle.
Analyze my PC — freeFAQ
Is the Radeon RX 550X 640SP better than the Radeon RX 550?
They're effectively tied — both land in the same performance tier. Decide on price, VRAM (2GB vs 2GB) and power draw.
What FPS do the Radeon RX 550X 640SP and Radeon RX 550 get at 1440p?
Across a mix of esports and AAA titles, the Radeon RX 550X 640SP averages around 46 FPS at 1440p and the Radeon RX 550 around 46 FPS, assuming a CPU that isn't holding them back.
Which is the better value, the Radeon RX 550X 640SP or the Radeon RX 550?
It depends on the price you can find each at — GPU prices move constantly. Check the live Amazon price for both, then run your full build through BuildForge to confirm your CPU and PSU can support the card before buying.
Related comparisons
As an Amazon Associate, BuildForge earns from qualifying purchases. FPS figures are model estimates calibrated against public benchmarks, not measured results; specs from the MIT-licensed DBGPU dataset.