NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce RTX 4090 Max-Q
GPU · Specs Compare
Graphics Card
Release Date
Sep 2014
Jan 2023
Generation
GeForce 600
GeForce 40 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
980 MHz
930 MHz
Boost Clock
1032 MHz
1455 MHz
Memory Clock
1502 MHz
1750 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
192bit
256bit
Bandwidth
144.2GB/s
448.0GB/s
Render Config
Shading Units
960
9728
TMUs
80
304
ROPs
24
112
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
384 KB
64 MB
SM Count
—
76
Tensor Cores
—
304
RT Cores
—
76
Theoretical Performance
Pixel Rate
20.64 GPixel/s
163.0 GPixel/s
Texture Rate
82.56 GTexel/s
442.3 GTexel/s
FP32 (float)
1.981 TFLOPS
28.31 TFLOPS
FP64 (double)
82.56 GFLOPS
442.3 GFLOPS
FP16 (half)
—
28.31 TFLOPS
Graphics Processor
GPU Name
GK104
AD103
Architecture
Kepler
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
28 nm
4 nm
Transistors
3.54 billion
45.9 billion
Die Size
294 mm²
379 mm²
GPU Variant
—
GN21-X11
Board Design
TDP
140W
80W
Suggested PSU
300 W
—
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Portable Device Dependent
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.3
CUDA
3.0
8.9
Shader Model
5.1
6.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.