RX 6600 vs Radeon RX 7800 XT
Radeon RX 7800 XT
$599.99 new
$475.00 used on eBay
See Radeon RX 7800 XT price on Amazon → See used listings on eBay →Specs compared
| Spec | RX 6600 | Radeon RX 7800 XT |
|---|---|---|
| Memory | 8 GB | ★ 16 GB |
| Memory type | GDDR6 | GDDR6 |
| Boost clock | ★ 2491 MHz | 2124 MHz |
| Core clock | — | — |
| TDP | 132 W | — |
| Interface | PCIe 4.0 | — |
| Length | — | — |
| New price | — | $599.99 |
| Used price (eBay) | $194.99 | $475.00 |
★ indicates the better value for that spec.
Verdict
The RX 6600 and Radeon RX 7800 XT land at effectively the same price so your decision should come down to features, ecosystem fit, and availability rather than budget.
The Radeon RX 7800 XT's 16 GB of VRAM is a 8 GB advantage over the RX 6600. 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 Radeon RX 7800 XT edges it on raw VRAM, which carries more weight the longer you hold onto a card.
Where to buy
Radeon RX 7800 XT
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Prices as of July 14, 2026. Updated daily.