GPU Showdown

GeForce GTX 1660vsGeForce RTX 5090 D

The GeForce GTX 1660 is a budget-friendly card for 1080p gaming on a tight budget, while the RTX 5090 D is a top-tier flagship for maxed-out 4K and creative work.

NVIDIA GeForce GTX 1660
6 GB · 120W
VS
NVIDIA GeForce RTX 5090 D
32 GB · 575W
NVIDIA

GeForce GTX 1660

Turing · TSMC 12 nm · 2019

28score
4.1/ 5
0 votes
VRAM
6 GB
TDP
120W
CUDA Cores
1,408
Boost Clock
1785 MHz

As an Amazon Associate we may earn from qualifying purchases.

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

As an Amazon Associate we may earn from qualifying purchases.

Aggregate Performance

Overall Performance Score

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

GTX 1660
28
RTX 5090 DWinner
100
RTX 5090 D leads by 257.1% in aggregate performance.
Where they rank overall
#1RTX 5090 D100
#2RTX 509094
#95RTX 3050 OEM29
#96GTX 166028
#97RTX 3050 6 GB26
Technical Specifications

Side-by-Side Specs

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

SpecsGTX 1660RTX 5090 D
General
Process Node12 nm5 nm
Memory
VRAM6 GB32 GB
Memory TypeGDDR5GDDR7
Memory Bus192-bit512-bit
Bandwidth192.1 GB/s1790 GB/s
Compute
CUDA Cores1,40821,760
TMUs88680
ROPs48176
Boost Clock1785 MHz2407 MHz
FP325.027 TF104.8 TF
Power
TDP120575
Power Connectors1x 8-pin1x 16-pin
Display
Max Resolution7680×43207680×4320
Display Outputs1x DVI, 1x HDMI, 1x DisplayPort1x HDMI 2.1b, 3x DisplayPort 2.1b
Verdict

Which should you buy?

Winner overall

The RTX 5090 D wins overall for anyone needing extreme graphics performance and modern features.

Best value

For budget buyers, the GTX 1660 is the smarter pick because it costs far less while still handling older games.

When the other wins

The GTX 1660 is the right choice for a basic office PC that never runs demanding 3D software or modern games.

FAQ

Frequently asked questions

Is the GTX 1660 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 28 out of 100), so it leads the GTX 1660 in most workloads.

How much faster is the RTX 5090 D than the GTX 1660?

Based on our aggregated benchmark scores the RTX 5090 D is roughly 257% faster than the GTX 1660 overall. The real-world gap varies by game, resolution and settings.

Which should you buy, the GTX 1660 or the RTX 5090 D?

If you want the most performance, pick the RTX 5090 D. If the GTX 1660 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.