Radeon RX 580 vs Radeon RX Vega 56
The Radeon RX Vega 56 pulls ahead here — in a different league, about 100% ahead of the Radeon RX 580.
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Comparable or lower specs
Radeon RX Vega 56 vs Radeon RX 580: In-Depth Breakdown
Performance: Radeon RX Vega 56 vs Radeon RX 580
The Radeon RX Vega 56 is dramatically faster, around 100% ahead of the Radeon RX 580. Both cards sit in the same broad class, well suited to entry-level 1080p. The Radeon RX Vega 56 packs 3,584 stream processors versus 2,304 on the Radeon RX 580.
Power & Efficiency
At 185W vs 210W, the Radeon RX 580 is the gentler load on your system. The Radeon RX Vega 56's extra power draw buys more performance per watt, not just more heat — worth it if your PSU has the headroom.
Memory & Bandwidth
The Radeon RX Vega 56's memory is faster — 410 GB/s versus 256 GB/s (2048-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 580 or Radeon RX Vega 56?
The Radeon RX Vega 56 is the faster card by about 100%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.
Frequently Asked Questions
Is the Radeon RX Vega 56 better than the Radeon RX 580?
Which is better for 4K gaming, the Radeon RX 580 or the Radeon RX Vega 56?
Which should you buy: Radeon RX 580 or Radeon RX Vega 56?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 580 | Radeon RX Vega 56 |
|---|---|---|
| Architecture | GCN 4.0 (Polaris) | GCN 5.0 (Vega) |
| Process Node | GloFo 14nm | GloFo 14nm |
| CUDA Cores (Stream Processors / Stream Processors) | 2,304 | 3,584✓ |
Clock Speeds
| Specification | Radeon RX 580 | Radeon RX Vega 56 |
|---|---|---|
| Base Clock | 1,257 MHz✓ | 1,156 MHz |
| Boost Clock | 1,340 MHz | 1,471 MHz✓ |
Memory
| Specification | Radeon RX 580 | Radeon RX Vega 56 |
|---|---|---|
| VRAM Capacity | 8 GB | 8 GB |
| Memory Type | GDDR5 | HBM2 |
| Memory Bus | 256-bit | 2048-bit✓ |
| Memory Speed | 8 Gbps✓ | 1.6 Gbps |
| Bandwidth | 256 GB/s | 409.6 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 580 | Radeon RX Vega 56 |
|---|---|---|
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| TDP | 185 W✓ | 210 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Apr 2017 | Aug 2017 |
