GPU Showdown

Radeon RX 6600vsGeForce RTX 5090 D

The GeForce RTX 5090 D is a top-end card for gamers and creators who want the absolute fastest processing power available, while the Radeon RX 6600 is a budget-friendly pick for smooth 1080p play.

AMD Radeon RX 6600
8 GB · 132W
VS
NVIDIA GeForce RTX 5090 D
32 GB · 575W
AMD

Radeon RX 6600

RDNA 2.0 · TSMC 7 nm · 2021

36score
4.4/ 5
0 votes
VRAM
8 GB
TDP
132W
CUDA Cores
1,792
Boost Clock
2491 MHz

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NVIDIA

GeForce RTX 5090 D

Blackwell 2.0 · TSMC 5 nm · 2025

100score
3.3/ 5
0 votes
VRAM
32 GB
TDP
575W
Shaders
21,760
Boost Clock
2407 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
36
RTX 5090 DWinner
100
RTX 5090 D leads by 177.8% in aggregate performance.
Where they rank overall
#1RTX 5090 D100
#2RTX 509094
#74RTX 3060 8 GB37
#75RX 660036
#76GTX 1070 Ti35
Technical Specifications

Side-by-Side Specs

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

SpecsRX 6600RTX 5090 D
General
Process Node7 nm5 nm
Memory
VRAM8 GB32 GB
Memory TypeGDDR6GDDR7
Memory Bus128-bit512-bit
Bandwidth224 GB/s1790 GB/s
Compute
CUDA Cores1,79221,760
TMUs112680
ROPs64176
Boost Clock2491 MHz2407 MHz
FP328.928 TF104.8 TF
Power
TDP132575
Power Connectors1x 8-pin1x 16-pin
Display
Max Resolution7680×43207680×4320
Display Outputs1x HDMI, 3x DisplayPort1x HDMI 2.1b, 3x DisplayPort 2.1b
Verdict

Which should you buy?

Winner overall

The GeForce RTX 5090 D wins decisively for any user needing top-tier performance, while the Radeon RX 6600 is outmatched in every way.

Best value

For budget buyers, the Radeon RX 6600 is the smarter pick, offering decent 1080p gaming at a much lower cost than the flagship GeForce RTX 5090 D.

When the other wins

The Radeon RX 6600 is the right choice for a casual gamer building a low-power, affordable PC who doesn't need the extreme performance of the GeForce RTX 5090 D.

FAQ

Frequently asked questions

Is the RX 6600 better than the RTX 5090 D?

Overall the RTX 5090 D is the stronger graphics card: it ranks higher in our aggregate performance score (100 vs 36 out of 100), so it leads the RX 6600 in most workloads.

How much faster is the RTX 5090 D than the RX 6600?

Based on our aggregated benchmark scores the RTX 5090 D is roughly 178% faster than the RX 6600 overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the RX 6600 or the RTX 5090 D?

If you want the most performance, pick the RTX 5090 D. If the RX 6600 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.