GPU Showdown

GeForce RTX 4080vsRadeon RX 6400

The GeForce RTX 4080 is a high-end card for 4K gaming and creative work, while the Radeon RX 6400 is a basic entry-level option for simple displays or budget office PCs.

NVIDIA GeForce RTX 4080
16 GB · 320W
VS
AMD Radeon RX 6400
4 GB · 53W
NVIDIA

GeForce RTX 4080

Ada Lovelace · TSMC 5 nm · 2022

83score
4.2/ 5
0 votes
VRAM
16 GB
TDP
320W
CUDA Cores
9,728
Boost Clock
2505 MHz

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AMD

Radeon RX 6400

RDNA 2.0 · TSMC 6 nm · 2022

19score
3.9/ 5
0 votes
VRAM
4 GB
TDP
53W
Shaders
768
Boost Clock
2321 MHz

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Aggregate Performance

Overall Performance Score

A unified score from combined synthetic and real-world benchmarks. 100 represents the fastest consumer GPU available.

RTX 4080Winner
83
RX 6400
19
RTX 4080 leads by 336.8% in aggregate performance.
Where they rank overall
#4RTX 508086
#5RTX 408083
#6RTX 4080 SUPER82
#109GTX 165019
#110RX 640019
#111RX 580 2048SP18
Technical Specifications

Side-by-Side Specs

Every detail compared. Highlighted cells indicate the leading value for that metric.

SpecsRTX 4080RX 6400
General
Process Node5 nm6 nm
Memory
VRAM16 GB4 GB
Memory TypeGDDR6XGDDR6
Memory Bus256-bit64-bit
Bandwidth716.8 GB/s128 GB/s
Compute
CUDA Cores9,728768
TMUs30448
ROPs11232
Boost Clock2505 MHz2321 MHz
FP3248.74 TF3.565 TF
Power
TDP32053
Power Connectors1x 16-pin
Display
Max Resolution7680×43207680×4320
Display Outputs1x HDMI 2.1, 3x DisplayPort 1.4a1x HDMI 2.1, 1x DisplayPort 1.4a
Verdict

Which should you buy?

Winner overall

The GeForce RTX 4080 is the clear winner for anyone needing high-end gaming or creative performance, leaving the Radeon RX 6400 far behind.

Best value

The GeForce RTX 4080 is the smarter pick for budget/value buyers who prioritize long-term performance, while the Radeon RX 6400 is only for extremely tight budgets.

When the other wins

The Radeon RX 6400 is the right choice for a basic office PC or media center where low power draw and minimal cost matter more than any gaming ability.

FAQ

Frequently asked questions

Is the RTX 4080 better than the RX 6400?

Overall the RTX 4080 is the stronger graphics card: it ranks higher in our aggregate performance score (83 vs 19 out of 100), so it leads the RX 6400 in most workloads.

How much faster is the RTX 4080 than the RX 6400?

Based on our aggregated benchmark scores the RTX 4080 is roughly 337% faster than the RX 6400 overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the RTX 4080 or the RX 6400?

If you want the most performance, pick the RTX 4080. If the RX 6400 is meaningfully cheaper where you shop, it can be the better value for similar real-world results — check current prices and the full spec comparison above before deciding.