GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Radeon RX 580 is the clear winner, offering 2691.2% better value than Radeon RX 550.
The Radeon RX 580 is dramatically faster than the Radeon RX 550, leading by roughly 500% in our performance index. It is also the stronger value pick here, so it's the easy recommendation if your budget allows.
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.
Price & Value
Right now the Radeon RX 580 starts at $114 BRL against $530 BRL for the Radeon RX 550. Because it's both faster and competitively priced, the Radeon RX 580 wins on performance-per-dollar by about 2691%. The Radeon RX 580 is trading below its $229 BRL MSRP — a genuine deal. The Radeon RX 550 still sits about $451 BRL above its $79 BRL MSRP.
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 all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Radeon RX 550 if you find it at a steep discount.
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?
Is the Radeon RX 550 worth the extra $416 BRL over 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 |
