Telecom Digest
RUENSign in
🎮 Comparison · GPU comparison

Radeon RX 7800 XT vs Radeon RX 6800 XT: specs comparison

Radeon RX 7800 XT came out in 2023 on the RDNA 3 architecture, Radeon RX 6800 XT in 2020 on RDNA 2. Radeon RX 7800 XT has 16 GB of GDDR6 on a 256-bit bus (624 GB/s), Radeon RX 6800 XT has 16 GB of GDDR6 on a 256-bit bus (512 GB/s). Power draw: 263 W vs 300 W. Recommended PSU: 700 W for Radeon RX 7800 XT and 750 W for Radeon RX 6800 XT.

In short. The table below is built from the official spec sheets. Green marks the best value in a row, and under the table you will see which resolutions the VRAM is enough for. This is not an FPS benchmark.
Spec
Radeon RX 7800 XT
16 GB GDDR6 · 2023
Spec sheet →
Radeon RX 6800 XT
16 GB GDDR6 · 2020
Spec sheet →
TypeDesktopDesktop
Release year20232020
ArchitectureRDNA 3RDNA 2
Shader cores3,8404,608
Boost clock MHz2,430MHz2,250MHz
VRAM GB16GB16GB
Memory typeGDDR6GDDR6
Memory bus bit256bit256bit
Memory bandwidth GB/s624GB/s512GB/s
Power draw (TDP) W263W300W
Power connectors2×8-pin2×8-pin
Recommended PSU W700W750W

Which is better for 1080p, 1440p and 4K

  • 1080pEnough VRAM on both: Radeon RX 7800 XT, Radeon RX 6800 XT. Higher memory bandwidth: Radeon RX 7800 XT (624 GB/s)
  • 1440pEnough VRAM on both: Radeon RX 7800 XT, Radeon RX 6800 XT. Higher memory bandwidth: Radeon RX 7800 XT (624 GB/s)
  • 4KEnough VRAM on both: Radeon RX 7800 XT, Radeon RX 6800 XT. Higher memory bandwidth: Radeon RX 7800 XT (624 GB/s)

Based on actual specs: 8 GB of VRAM or more for 1080p, 12 GB for 1440p and 16 GB for 4K at high settings in new games. This is not an FPS benchmark: we don’t show scores we can’t back with a source.

Change models or add a third → All graphics cards →

How to use it

  1. Compare VRAM and memory bandwidth — they matter most at high resolutions.
  2. Check TDP, connectors and the recommended PSU: will your power supply cope.
  3. Look at the “Which is better for 1080p, 1440p and 4K” block.
  4. To add a third card, press “Change models or add a third”.

More GPU comparisons

Related tools

Where the data comes from

Specs follow the official vendor spec sheets: Radeon RX 7800 XT, Radeon RX 6800 XT. Reference designs; partner cards may have different clocks, TDP and connectors.

FAQ

Which is better — RX 7800 XT or RX 6800 XT?
It depends on resolution and budget. By VRAM: 1080p: Enough VRAM on both: Radeon RX 7800 XT, Radeon RX 6800 XT. Higher memory bandwidth: Radeon RX 7800 XT (624 GB/s). 1440p: Enough VRAM on both: Radeon RX 7800 XT, Radeon RX 6800 XT. Higher memory bandwidth: Radeon RX 7800 XT (624 GB/s). 4K: Enough VRAM on both: Radeon RX 7800 XT, Radeon RX 6800 XT. Higher memory bandwidth: Radeon RX 7800 XT (624 GB/s). There are no FPS benchmarks in the table — check tests in the specific games you play.
How much VRAM do RX 7800 XT and RX 6800 XT have?
RX 7800 XT has 16 GB of GDDR6 with 624 GB/s of bandwidth, RX 6800 XT has 16 GB of GDDR6 and 512 GB/s.
What PSU do RX 7800 XT and RX 6800 XT need?
The vendors recommend a 700 W power supply for RX 7800 XT and 750 W for RX 6800 XT. Power connectors: RX 7800 XT — 2×8-pin, RX 6800 XT — 2×8-pin.
Which card is more power-efficient — RX 7800 XT or RX 6800 XT?
Per the spec sheet, RX 7800 XT draws 263 W and RX 6800 XT draws 300 W. Lower TDP means easier cooling and a smaller PSU.
Can I add a third graphics card?
Yes. Open the interactive comparison — the pair is already selected, you can add two more models and share the link.
Where do the specs come from?
From the official NVIDIA, AMD and Intel spec sheets — each model in the table header links to its vendor page. Bandwidth is calculated as “memory speed × bus width / 8”.
Not sure which to pick? Open our best graphics cards 2026 ranking (in Russian) — the editors explain which card to buy for 1080p, 1440p and 4K and for different budgets.