NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce GTX 1660
GPU · Specs Compare
Graphics Card
Release Date
Jan 2023
Mar 2019
Generation
GeForce 40 Mobile
GeForce 16
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
930 MHz
1530 MHz
Boost Clock
1455 MHz
1785 MHz
Memory Clock
1750 MHz
2001 MHz
Memory
Memory Size
16GB
6GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
192bit
Bandwidth
448.0GB/s
192.1GB/s
Render Config
SM Count
76
22
Shading Units
9728
1408
TMUs
304
88
ROPs
112
48
Tensor Cores
304
—
RT Cores
76
—
L1 Cache
128 KB (per SM)
64 KB (per SM)
L2 Cache
64 MB
1536 KB
Theoretical Performance
Pixel Rate
163.0 GPixel/s
85.68 GPixel/s
Texture Rate
442.3 GTexel/s
157.1 GTexel/s
FP16 (half)
28.31 TFLOPS
10.05 TFLOPS
FP32 (float)
28.31 TFLOPS
5.027 TFLOPS
FP64 (double)
442.3 GFLOPS
157.1 GFLOPS
Graphics Processor
GPU Name
AD103
TU116
GPU Variant
GN21-X11
TU116-300-A1
Architecture
Ada Lovelace
Turing
Foundry
TSMC
TSMC
Process Size
4 nm
12 nm
Transistors
45.9 billion
6.6 billion
Die Size
379 mm²
284 mm²
Board Design
TDP
80W
120W
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.01x DisplayPort 1.4a
Power Connectors
None
1x 8-pin
Suggested PSU
—
300 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.3
CUDA
8.9
7.5
Shader Model
6.7
6.6
Benchmark
3DMark Time Spy
—
5,444
3DMark Time Spy Extreme
—
2,465
▲ Specs Compare
Data sourced from official specifications and benchmark tests.