Arc B580 vs RTX PRO 6000 Blackwell
Arc B580
$369.99 new
$319.00 used on eBay
See Arc B580 price on Amazon → See used listings on eBay →Price difference: $14,630.00 (97.5%) — the Arc B580 is cheaper.
Specs compared
| Spec | Arc B580 | RTX PRO 6000 Blackwell |
|---|---|---|
| Memory | 12 GB | ★ 96 GB |
| Memory type | GDDR6 | GDDR7 ECC |
| Boost clock | 2760 MHz | — |
| Core clock | — | — |
| TDP | — | 600 W |
| Interface | — | PCIe 5.0 |
| Length | — | 12.0 in |
| New price | $369.99 ★ | $14,999.99 |
| Used price (eBay) | $319.00 | — |
★ indicates the better value for that spec.
Verdict
With the RTX PRO 6000 Blackwell running 98% above the Arc B580 — a $14,630.00 premium — the two cards sit in meaningfully different price brackets. The Arc B580 wins on value unless the extra performance matters for your workload.
The RTX PRO 6000 Blackwell's 96 GB of VRAM is a 84 GB advantage over the Arc B580. At 4K or in heavily modded games that extra buffer matters — and it provides headroom as future titles push VRAM requirements higher.
Budget-conscious buyers have an extra option: the Arc B580 can be found used on eBay around $319.00, roughly $50.99 below its new street price. If you're comfortable buying used, that saving could shift the value equation between these two cards.
Unless you specifically need what the RTX PRO 6000 Blackwell offers, the Arc B580 is the stronger value at this price gap.
Where to buy
RTX PRO 6000 Blackwell
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Prices as of August 23, 2026. Updated daily.