NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce GTX 660 Ti
GPU Specs Compare
Graphics Card
Release Date
Jan 2023
Aug 2012
Generation
GeForce 40 Mobile
GeForce 600
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1335 MHz
915 MHz
Boost Clock
1695 MHz
980 MHz
Memory Clock
2250 MHz
1502 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
192bit
Bandwidth
576.0GB/s
144.2GB/s
Render Config
SM Count
76
-
Shading Units
9728
1344
TMUs
304
112
ROPs
112
24
Tensor Cores
304
-
RT Cores
76
-
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
64 MB
384 KB
Theoretical Performance
Pixel Rate
189.8 GPixel/s
27.44 GPixel/s
Texture Rate
515.3 GTexel/s
109.8 GTexel/s
FP16 (half)
32.98 TFLOPS
-
FP32 (float)
32.98 TFLOPS
2.634 TFLOPS
FP64 (double)
515.3 GFLOPS
109.8 GFLOPS
Graphics Processor
GPU Name
AD103
GK104
GPU Variant
GN21-X11
GK104-300-KD-A2
Architecture
Ada Lovelace
Kepler
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
45.9 billion
3.54 billion
Die Size
379 mm²
294 mm²
Board Design
TDP
120W
150W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
-
450 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
8.9
3.0
Shader Model
6.8
5.1