GPU Showdown

Radeon RX 6600 XTvsGeForce RTX 4090

The GeForce RTX 4090 is a top-tier graphics card for gamers and creators who need maximum performance at any cost, while the Radeon RX 6600 XT is a solid mid-range option for budget-conscious 1080p gamers.

AMD Radeon RX 6600 XT
8 GB · 160W
VS
NVIDIA GeForce RTX 4090
24 GB · 450W
AMD

Radeon RX 6600 XT

RDNA 2.0 · TSMC 7 nm · 2021

40score
4.2/ 5
0 votes
VRAM
8 GB
TDP
160W
CUDA Cores
2,048
Boost Clock
2589 MHz

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NVIDIA

GeForce RTX 4090

Ada Lovelace · TSMC 5 nm · 2022

92score
3.8/ 5
0 votes
VRAM
24 GB
TDP
450W
Shaders
16,384
Boost Clock
2520 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.

RX 6600 XT
40
RTX 4090Winner
92
RTX 4090 leads by 130.0% in aggregate performance.
Where they rank overall
#2RTX 509094
#3RTX 409092
#4RTX 508086
#66RTX 2060 Super40
#67RX 6600 XT40
#68VII39
Technical Specifications

Side-by-Side Specs

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

SpecsRX 6600 XTRTX 4090
General
Process Node7 nm5 nm
Memory
VRAM8 GB24 GB
Memory TypeGDDR6GDDR6X
Memory Bus128-bit384-bit
Bandwidth256 GB/s1010 GB/s
Compute
CUDA Cores2,04816,384
TMUs128512
ROPs64176
Boost Clock2589 MHz2520 MHz
FP3210.6 TF82.58 TF
Power
TDP160450
Power Connectors1x 8-pin1x 16-pin
Display
Max Resolution7680×43207680×4320
Display Outputs1x HDMI, 2x DisplayPort1x HDMI 2.1, 3x DisplayPort 1.4a
Verdict

Which should you buy?

Winner overall

The GeForce RTX 4090 dominates with vastly superior performance and memory, making it the clear winner for high-end gaming and creative work.

Best value

For budget-conscious buyers, the Radeon RX 6600 XT is the smarter pick due to its much lower cost and decent 1080p gaming.

When the other wins

The Radeon RX 6600 XT is the right choice for a compact, power-efficient build where you only play less demanding games at 1080p.

FAQ

Frequently asked questions

Is the RX 6600 XT better than the RTX 4090?

Overall the RTX 4090 is the stronger graphics card: it ranks higher in our aggregate performance score (92 vs 40 out of 100), so it leads the RX 6600 XT in most workloads.

How much faster is the RTX 4090 than the RX 6600 XT?

Based on our aggregated benchmark scores the RTX 4090 is roughly 130% faster than the RX 6600 XT overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the RX 6600 XT or the RTX 4090?

If you want the most performance, pick the RTX 4090. If the RX 6600 XT 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.