NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce RTX 4080 16 GB
GPU · Specs Compare
Graphics Card
Release Date
Sep 2014
Sep 2022
Generation
GeForce 600
GeForce 40
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
980 MHz
2205 MHz
Boost Clock
1032 MHz
2505 MHz
Memory Clock
1502 MHz
1400 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6X
Memory Bus
192bit
256bit
Bandwidth
144.2GB/s
716.8GB/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
280.6 GPixel/s
Texture Rate
82.56 GTexel/s
761.5 GTexel/s
FP32 (float)
1.981 TFLOPS
48.74 TFLOPS
FP64 (double)
82.56 GFLOPS
761.5 GFLOPS
FP16 (half)
—
48.74 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
—
AD103-300-A1
Board Design
TDP
140W
320W
Suggested PSU
300 W
700 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
1x 6-pin
1x 16-pin
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
6.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.