GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Market comparison is currently pending while we verify the latest benchmarks for Radeon RX 550 and Radeon RX 580.
The Radeon RX 580 is dramatically faster than the Radeon RX 550, leading by roughly 500% in our performance index.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Comparable or lower specs
Radeon RX 580 vs Radeon RX 550: In-Depth Breakdown
Performance: Radeon RX 580 vs Radeon RX 550
The Radeon RX 580 is dramatically faster, around 500% ahead of the Radeon RX 550. Both cards sit in the same broad class, well suited to entry-level 1080p. The Radeon RX 580 packs 2,304 stream processors versus 640 on the Radeon RX 550.
Power & Efficiency
The Radeon RX 550 pulls less power (50W vs 185W), so it's the easier card to cool and the lighter load on your PSU. The faster Radeon RX 580 draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it.
VRAM & Future-Proofing
With 8GB against 2GB, the Radeon RX 580 has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon RX 550's 2GB can fall short. The Radeon RX 580's memory is also faster — 256 GB/s versus 96 GB/s (256-bit vs 128-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 550 or Radeon RX 580?
The Radeon RX 580 is the faster card by about 500%. 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 580 better than the Radeon RX 550?
Which is better for 4K gaming, the Radeon RX 550 or the Radeon RX 580?
Does the Radeon RX 580 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 550 | Radeon RX 580 |
|---|---|---|
| Architecture | GCN 4.0 (Polaris) | GCN 4.0 (Polaris) |
| Process Node | GloFo 14nm | GloFo 14nm |
| CUDA Cores (Stream Processors / Stream Processors) | 640 | 2,304✓ |
Clock Speeds
| Specification | Radeon RX 550 | Radeon RX 580 |
|---|---|---|
| Base Clock | 1,019 MHz | 1,257 MHz✓ |
| Boost Clock | 1,183 MHz | 1,340 MHz✓ |
Memory
| Specification | Radeon RX 550 | Radeon RX 580 |
|---|---|---|
| VRAM Capacity | 2 GB | 8 GB✓ |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 128-bit | 256-bit✓ |
| Memory Speed | 6 Gbps | 8 Gbps✓ |
| Bandwidth | 96 GB/s | 256 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 550 | Radeon RX 580 |
|---|---|---|
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| TDP | 50 W✓ | 185 W |
| Power Connectors | None | 1x 8-pin |
| Released | Apr 2017 | Apr 2017 |
