Arc B580 vs GTX 1660 Super
Arc B580
$369.99 new
$280.00 used on eBay
See Arc B580 price on Amazon → See used listings on eBay →GTX 1660 Super
—
$99.99 used on eBay
See GTX 1660 Super price on Amazon → See used listings on eBay →Specs compared
| Spec | Arc B580 | GTX 1660 Super |
|---|---|---|
| Memory | ★ 12 GB | 6 GB |
| Memory type | GDDR6 | GDDR6 |
| Boost clock | ★ 2760 MHz | 1785 MHz |
| Core clock | — | — |
| TDP | — | 125 W |
| Interface | — | PCIe 3.0 |
| Length | — | — |
| New price | $369.99 | — |
| Used price (eBay) | $280.00 | $99.99 |
★ indicates the better value for that spec.
Verdict
The Arc B580 and GTX 1660 Super land at effectively the same price so your decision should come down to features, ecosystem fit, and availability rather than budget.
The Arc B580's 12 GB of VRAM is a 6 GB advantage over the GTX 1660 Super. At 4K or in heavily modded games that extra buffer matters — and it provides headroom as future titles push VRAM requirements higher.
If we had to pick one: the Arc B580 edges it on raw VRAM, which carries more weight the longer you hold onto a card.
Where to buy
GTX 1660 Super
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Prices as of July 14, 2026. Updated daily.