Radeon RX 7900 XTX vs Radeon RX 7800 XT
Radeon RX 7900 XTX
$1,129.99 new
$900.00 used on eBay
See Radeon RX 7900 XTX price on Amazon → See used listings on eBay →Radeon RX 7800 XT
$999.23 new
$499.99 used on eBay
See Radeon RX 7800 XT price on Amazon → See used listings on eBay →Price difference: $130.76 (11.6%) — the Radeon RX 7800 XT is cheaper. Used gap: $400.01 .
Specs compared
| Spec | Radeon RX 7900 XTX | Radeon RX 7800 XT |
|---|---|---|
| Memory | ★ 24 GB | 16 GB |
| Memory type | GDDR6 | GDDR6 |
| Boost clock | — | 2124 MHz |
| Core clock | — | — |
| TDP | — | — |
| Interface | PCIe 4.0 | — |
| Length | — | — |
| New price | $1,129.99 | $999.23 ★ |
| Used price (eBay) | $900.00 | $499.99 |
★ indicates the better value for that spec.
Verdict
At $999.23, the Radeon RX 7800 XT costs about 12% less than the $1,129.99 Radeon RX 7900 XTX. That $130.76 saving is real money, but not so wide that the pricier card is out of reach.
The Radeon RX 7900 XTX's 24 GB of VRAM is a 8 GB advantage over the Radeon RX 7800 XT. At 4K or in heavily modded games that extra buffer matters — and it provides headroom as future titles push VRAM requirements higher.
Where to buy
Radeon RX 7900 XTX
Radeon RX 7800 XT
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Full card details
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Prices as of September 25, 2026. Updated daily.