AMD Radeon RX Vega 56 vs AMD Radeon RX 580 8GB: real performance and FPS — which is better? Full comparison
Detailed gaming performance comparison
Reference CPU: Intel Core i5-13400
We compare the RX Vega 56 and the RX 580 8GB with real FPS across the most popular games at 1080p, 1440p and 4K, plus specs, launch price and AI upscaling support (DLSS/FSR/XeSS). See at a glance which is better for your resolution and budget.
The RX Vega 56 and the RX 580 8GB perform almost identically; price and features make the difference.
RX Vega 56
- Index (1080p)
- 22/100
- VRAM
- 8 GB
- Price (MSRP)
- $399 · ≈ €367
- $/FPS (value)
- $17.35 · ≈ €15.96
- Upscaling
- FSR
RX 580 8GB
- Index (1080p)
- 22/100
- VRAM
- 8 GB
- Price (MSRP)
- $229 · ≈ €211
- $/FPS (value)
- $9.96 · ≈ €9.16
- Upscaling
- FSR
Average FPS by resolution
Estimated average FPS for each graphics card across the most popular games. The gap usually shows at 1080p and 1440p; at 4K both lose smoothness and upscaling (DLSS/FSR) helps.
| Resolution | RX Vega 56 | RX 580 8GB | Difference |
|---|---|---|---|
| 1080p | 23 | 23 | = |
| 1440p | 15 | 15 | = |
| 4K | 6 | 6 | = |
Which one for your resolution?
Tie
Tie
Tie
Specifications
Side-by-side specs of the RX Vega 56 and RX 580 8GB: VRAM, power draw (TDP), performance index and launch price. The better value in each row is highlighted in blue.
| Spec | RX Vega 56 | RX 580 8GB |
|---|---|---|
| Brand | AMD | AMD |
| VRAM | 8 GB | 8 GB |
| TDP | 210W | 185W |
| Tier | High-end | Mid-range |
| Score 1080p | 22 | 22 |
| Score 1440p | 16 | 16 |
| Score 4K | 8 | 8 |
| Price (MSRP) | $399 | $229 |
| Architecture | Vega | GCN 4.0 |
| Process Node | GlobalFoundries 14nm | GlobalFoundries 14nm |
| Shading Units (CUDA/Stream) | 3584 | 2304 |
| RT Cores | — | — |
| Texture Units (TMUs) | 224 | 144 |
| ROPs | 64 | 32 |
| Base Clock | 1156 MHz | 1257 MHz |
| Boost Clock | 1471 MHz | 1340 MHz |
| FP32 Performance (Teraflops) | 10.54 TFLOPS | 6.17 TFLOPS |
| Memory Type | HBM2 | GDDR5 |
| Memory Clock | 800 MHz | 8000 MHz |
| Memory Bus | 2048-bit | 256-bit |
| Memory Bandwidth | 410 GB/s | 256 GB/s |
| PCIe Version | PCIe 3.0 | PCIe 3.0 |
| Transistor Count | 12.5B | 5.7B |
| Release Date | 2017-08-14 | 2017-04-18 |
Power & efficiency
TDP doesn't tell the whole story: here's how much each GPU delivers per watt it draws.
RX Vega 56
- TDP
- 210W
- FPS/W
- 0.11
RX 580 8GB
- TDP
- 185W
- FPS/W
- 0.12
The RX 580 8GB is more efficient: it draws 25W less and delivers more per watt, though the RX Vega 56 is still the faster card overall.
What FPS do these GPUs get in your game?
Pick the GPU and the game, and we'll take you straight to its real FPS.
Pick the GPU
Gaming Performance
Per-game FPS detail at 1080p Ultra. The graphics card that wins each title is highlighted in blue.
| Game | RX Vega 56 | RX 580 8GB | Winner |
|---|---|---|---|
 | 26 | 26 | Tie |
 | 24 | 24 | Tie |
 | 19 | 19 | Tie |
 | 20 | 20 | Tie |
 | 21 | 21 | Tie |
| 20 | 20 | Tie | |
 | 25 | 25 | Tie |
 | 26 | 26 | Tie |
 | 28 | 28 | Tie |
 | 23 | 23 | Tie |
Verdict
It's a tie: both GPUs win in 0 out of 10 games
At CheckFPS we measured both cards across 10 popular games at 1080p, 1440p and 4K on a reference CPU. Performance is practically tied at every resolution, so the decision comes down to price and current availability.
Frequently asked questions
Common questions when comparing the RX Vega 56 with the RX 580 8GB.
Which is better, the RX Vega 56 or the RX 580 8GB?
On average at 1080p, the RX Vega 56 is 0% faster than the RX 580 8GB. The best one for you depends on your resolution, budget and whether you prioritise ray tracing or price.
Which is better at 4K?
At 4K Ultra, the RX Vega 56 averages 6 FPS and the RX 580 8GB 6 FPS across the most popular games. For smooth 4K, enabling upscaling (DLSS/FSR) helps on both.
Is it worth paying more for the faster one?
At 1080p or 1440p the FPS gap may not justify the extra cost; at 4K or with ray tracing the faster card matters more. Check the by-resolution table to decide.
Which has better ray tracing and upscaling?
AI upscaling (DLSS on NVIDIA, FSR on AMD, XeSS on Intel) raises FPS on both; for ray tracing, GeForce RTX cards usually lead. See each card’s support above.
How big is the FPS difference between them?
On average across top games, the gap is around 0% at 1080p. At higher resolutions (1440p and 4K) the relative difference usually stays similar.
Vega 56 vs 580 8GB: what's the real difference?
In performance, the RX Vega 56 beats the RX 580 8GB by around 0% more FPS on average at 1080p — the gap shifts a bit by resolution, as shown in the table above. If you're torn between the Vega 56 and the 580 8GB on price, the price and $/FPS section above can help you decide.
