Arc B580 vs Radeon RX 7800 XT
Performance-wise the Radeon RX 7800 XT is out front, dramatically faster, roughly 68% 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 7800 XT vs Arc B580: In-Depth Breakdown
Performance: Radeon RX 7800 XT vs Arc B580
The Radeon RX 7800 XT is dramatically faster, around 68% ahead of the Arc B580. That gap is enough to move it up a tier: the Radeon RX 7800 XT is comfortable at 1440p, while the Arc B580 is better matched to 1080p.
Price & Value
Right now the Arc B580 starts at $322 EUR against $533 EUR for the Radeon RX 7800 XT. Because it's both faster and competitively priced, the Radeon RX 7800 XT wins on performance-per-dollar.
Power & Efficiency
The Arc B580 is the lighter draw at 190W against the Radeon RX 7800 XT's 263W, making it the easier card to power and cool. The Radeon RX 7800 XT draws more in absolute terms but squeezes out more performance per watt, so budget for a beefier PSU if you go that route.
VRAM & Future-Proofing
The Radeon RX 7800 XT'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 7800 XT 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 7800 XT?
The Radeon RX 7800 XT 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 7800 XT better than the Arc B580?
Which is better for 4K gaming, the Arc B580 or the Radeon RX 7800 XT?
Is the Radeon RX 7800 XT worth the extra $211 EUR over the Arc B580?
Does the Radeon RX 7800 XT have enough VRAM advantage to matter?
Which should you buy: Arc B580 or Radeon RX 7800 XT?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc B580 | Radeon RX 7800 XT |
|---|---|---|
| Architecture | Battlemage | RDNA 3 |
| Process Node | TSMC N5 | TSMC N5 |
| CUDA Cores (Shading Units / Stream Processors) | 2,560 | 3,840✓ |
| Ray Tracing Cores | 20 | 60✓ |
| Tensor / AI Cores | 160✓ | 120 |
Clock Speeds
| Specification | Arc B580 | Radeon RX 7800 XT |
|---|---|---|
| Base Clock | 2,670 MHz✓ | 1,800 MHz |
| Boost Clock | 2,850 MHz✓ | 2,430 MHz |
Memory
| Specification | Arc B580 | Radeon RX 7800 XT |
|---|---|---|
| VRAM Capacity | 12 GB | 16 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 192-bit | 256-bit✓ |
| Memory Speed | 19 Gbps | 19.5 Gbps✓ |
| Bandwidth | 456 GB/s | 624 GB/s✓ |
Connectivity & Power
| Specification | Arc B580 | Radeon RX 7800 XT |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| TDP | 190 W✓ | 263 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Dec 2024 | Aug 2023 |
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