RX 6600 vs Radeon RX 7800 XT
Radeon RX 7800 XT
$989.87 new
$600.00 used on eBay
See Radeon RX 7800 XT price on Amazon → See used listings on eBay →Price difference: $394.87 (39.9%) — the RX 6600 is cheaper. Used gap: $375.03 .
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 | $595.00 ★ | $989.87 |
| Used price (eBay) | $224.97 | $600.00 |
★ indicates the better value for that spec.
Verdict
With the Radeon RX 7800 XT running 40% above the RX 6600 — a $394.87 premium — the two cards sit in meaningfully different price brackets. The RX 6600 wins on value unless the extra performance matters for your workload.
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.
Unless you specifically need what the Radeon RX 7800 XT offers, the RX 6600 is the stronger value at this price gap.
Where to buy
Radeon RX 7800 XT
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Prices as of October 16, 2026. Updated daily.