Arc A580 vs Arc B580
The Arc B580 is a big jump in performance — leading the Arc A580 by roughly 38% in our performance index. The Arc A580, however, delivers more performance per dollar — $60 USD cheaper.
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Arc B580 vs Arc A580: In-Depth Breakdown
Performance: Arc B580 vs Arc A580
The Arc B580 is significantly faster, around 38% ahead of the Arc A580. Both cards sit in the same broad class, well suited to 1080p.
Price & Value
On price, expect to pay $130 USD for the Arc A580 versus $190 USD for the Arc B580. Despite being slower, the Arc A580 offers the better performance-per-dollar (~6% better value), so budget-focused buyers should weigh it carefully. The Arc A580 is trading below its $179 USD MSRP — a genuine deal. The Arc B580 is trading below its $248 USD MSRP — a genuine deal.
Power & Efficiency
The Arc A580 pulls less power (175W vs 190W), so it's the easier card to cool and the lighter load on your PSU. The faster Arc B580 draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it. Its more modern Battlemage architecture on a TSMC N5 process is part of why it does more with each watt.
VRAM & Future-Proofing
With 12GB against 8GB, the Arc B580 has more headroom for 4K textures and memory-hungry creative/AI tasks where the Arc A580's 8GB can fall short. The Arc A580's memory is also faster — 512 GB/s versus 456 GB/s (256-bit vs 192-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Arc A580 or Arc B580?
Choose the Arc B580 if you want the most performance and can absorb the higher price. If you're optimizing for value, the Arc A580 stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the Arc B580 better than the Arc A580?
Which is better for 4K gaming, the Arc A580 or the Arc B580?
Is the Arc B580 worth the extra $60 USD over the Arc A580?
Does the Arc B580 have enough VRAM advantage to matter?
Which should you buy: Arc A580 or Arc B580?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc A580 | Arc B580 |
|---|---|---|
| Architecture | Alchemist | Battlemage |
| Process Node | TSMC N6 | TSMC N5 |
| CUDA Cores (Shading Units / Shading Units) | 3,072✓ | 2,560 |
| Ray Tracing Cores | 24✓ | 20 |
| Tensor / AI Cores | 384✓ | 160 |
Clock Speeds
| Specification | Arc A580 | Arc B580 |
|---|---|---|
| Base Clock | 1,700 MHz | 2,670 MHz✓ |
| Boost Clock | 2,000 MHz | 2,850 MHz✓ |
Memory
| Specification | Arc A580 | Arc B580 |
|---|---|---|
| VRAM Capacity | 8 GB | 12 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit✓ | 192-bit |
| Memory Speed | 16 Gbps | 19 Gbps✓ |
| Bandwidth | 512 GB/s✓ | 456 GB/s |
Connectivity & Power
| Specification | Arc A580 | Arc B580 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |
| TDP | 175 W✓ | 190 W |
| Power Connectors | 2x 8-pin | 1x 8-pin |
| Released | Oct 2023 | Dec 2024 |
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