RTX 3070 vs RTX 3080
RTX 3070
$645.00 new
$270.00 used on eBay
See RTX 3070 price on Amazon → See used listings on eBay →RTX 3080
$700.00 new
$400.00 used on eBay
See RTX 3080 price on Amazon → See used listings on eBay →Price difference: $55.00 (7.9%) — the RTX 3070 is cheaper. Used gap: $130.00 .
Specs compared
| Spec | RTX 3070 | RTX 3080 |
|---|---|---|
| Memory | 8 GB | ★ 10 GB |
| Memory type | GDDR6 | GDDR6X |
| Boost clock | ★ 1725 MHz | 1710 MHz |
| Core clock | — | — |
| TDP | ★ 220 W | 320 W |
| Interface | PCIe 4.0 | PCIe 4.0 |
| Length | — | — |
| New price | $645.00 ★ | $700.00 |
| Used price (eBay) | $270.00 | $400.00 |
★ indicates the better value for that spec.
Verdict
At $645.00, the RTX 3070 costs about 8% less than the $700.00 RTX 3080. That $55.00 saving is real money, but not so wide that the pricier card is out of reach.
Power consumption is a meaningful differentiator here: the RTX 3070 draws 220 W versus 320 W for the RTX 3080. That 100 W gap can determine whether your existing PSU is sufficient and will show up in long-term electricity costs.
Where to buy
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Prices as of October 20, 2026. Updated daily.