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RTX 3070 8GB vs RX 6700 XT 12GB

The RX 6700 XT 12GB is about 13% faster at 1440p, and they cost about the same right now. For the money, the RX 6700 XT 12GB is the better buy.

Graphics card

GeForce RTX 3070 8GB

—
No new stock · used about $325
Video memory
8 GB
Power
220 W
Recommended power supply
650 W
Power connector
8-pin
Card length
267–323 mm
Released
2020

Models: ASUS Dual, Gigabyte Eagle OC, MSI Gaming X Trio

Graphics card · faster · better value

Radeon RX 6700 XT 12GB

—
No new stock · used about $329
Video memory
12 GB
Power
230 W
Recommended power supply
650 W
Power connector
8-pin
Card length
267–313 mm
Released
2021

Models: Sapphire Pulse, XFX Swft 309

Average frame rates

Estimated across demanding games at High settings, each tested with a Ryzen 7 9800X3D and 32 GB of DDR5-6000.

1080p
RTX 3070 8GB 80 fps
RX 6700 XT 12GB 83 fps
1440p
RTX 3070 8GB 53 fps
RX 6700 XT 12GB 60 fps
4K
RTX 3070 8GB 27 fps
RX 6700 XT 12GB 32 fps

Cost per frame at 1440p: RTX 3070 8GB $6 · RX 6700 XT 12GB $5

Game by game at 1440p

GameRTX 3070 8GBRX 6700 XT 12GBDifference
Cyberpunk 20772536RX 6700 XT 12GB +44%
Black Myth: Wukong2130RX 6700 XT 12GB +43%
Fortnite8084RX 6700 XT 12GB +5%
Counter-Strike 2172179RX 6700 XT 12GB +4%
Call of Duty: Black Ops 75466RX 6700 XT 12GB +22%
Baldur’s Gate 34554RX 6700 XT 12GB +20%

Which graphics card should you buy?

  • Better value: the RX 6700 XT 12GB costs less per frame ($5 vs $6 per fps at 1440p).
  • The RX 6700 XT 12GB has more video memory (12 GB vs 8 GB), which matters for 1440p and 4K with high textures — 8 GB is already tight in some new games.
  • The RTX 3070 8GB is no longer sold new — it’s a second-hand buy at around $325.
  • The RX 6700 XT 12GB is no longer sold new — it’s a second-hand buy at around $329.

Check either card with your processor in the bottleneck checker, or try it in a full build in the builder.

Related comparisons

Frame rates are Rigsmith estimates from its performance indices, not measured benchmarks. Prices are the cheapest in-stock new price at Australian stores as of 12/11/2026, including GST.