Arc B580 vs Radeon RX 9070
Performance-wise the Radeon RX 9070 is out front, dramatically faster, roughly 105% up on the Arc B580. It is also the stronger value pick here, so it's the easy recommendation if your budget allows.
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Radeon RX 9070 vs Arc B580: In-Depth Breakdown
Performance: Radeon RX 9070 vs Arc B580
The Radeon RX 9070 is dramatically faster, around 105% ahead of the Arc B580. That gap is enough to move it up a tier: the Radeon RX 9070 is comfortable at 4K with upscaling and native 1440p, while the Arc B580 is better matched to 1080p.
Price & Value
Right now the Arc B580 starts at $367 EUR against $586 EUR for the Radeon RX 9070. Because it's both faster and competitively priced, the Radeon RX 9070 wins on performance-per-dollar by about 28%. The Arc B580 still sits about $119 EUR above its $248 EUR MSRP.
Power & Efficiency
The Arc B580 is the lighter draw at 190W against the Radeon RX 9070's 220W, making it the easier card to power and cool. The Radeon RX 9070 draws more in absolute terms but squeezes out more performance per watt, so budget for a beefier PSU if you go that route. Its more modern RDNA 4 architecture on a TSMC N4 process is part of why it does more with each watt.
VRAM & Future-Proofing
The Radeon RX 9070's 16GB (vs 12GB on the Arc B580) gives it more room for 4K textures and memory-hungry creative or AI workloads.
Features & Ecosystem
Beyond raw numbers, the Arc B580 brings Intel XeSS upscaling and AV1 encoding, while the Radeon RX 9070 offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: Arc B580 or Radeon RX 9070?
The Radeon RX 9070 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Arc B580 if you find it at a steep discount.
Frequently Asked Questions
Is the Radeon RX 9070 better than the Arc B580?
Which is better for 4K gaming, the Arc B580 or the Radeon RX 9070?
Is the Radeon RX 9070 worth the extra $219 EUR over the Arc B580?
Does the Radeon RX 9070 have enough VRAM advantage to matter?
Which should you buy: Arc B580 or Radeon RX 9070?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc B580 | Radeon RX 9070 |
|---|---|---|
| Architecture | Battlemage | RDNA 4 |
| Process Node | TSMC N5 | TSMC N4 |
| CUDA Cores (Shading Units / Stream Processors) | 2,560 | 3,584✓ |
| Ray Tracing Cores | 20 | 56✓ |
| Tensor / AI Cores | 160✓ | 112 |
Clock Speeds
| Specification | Arc B580 | Radeon RX 9070 |
|---|---|---|
| Base Clock | 2,670 MHz✓ | 1,330 MHz |
| Boost Clock | 2,850 MHz✓ | 2,520 MHz |
Memory
| Specification | Arc B580 | Radeon RX 9070 |
|---|---|---|
| VRAM Capacity | 12 GB | 16 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 192-bit | 256-bit✓ |
| Memory Speed | 19 Gbps | 20 Gbps✓ |
| Bandwidth | 456 GB/s | 644.6 GB/s✓ |
Connectivity & Power
| Specification | Arc B580 | Radeon RX 9070 |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 5.0 x16 |
| TDP | 190 W✓ | 220 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Dec 2024 | Mar 2025 |
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