NVIDIA GeForce RTX 5090 SE vs NVIDIA GeForce GTX 660 Rev. 2
GPU · Specs Compare
Graphics Card
Release Date
Jan 2026
Sep 2014
Generation
GeForce 50
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1740 MHz
980 MHz
Boost Clock
2377 MHz
1032 MHz
Memory Clock
1750 MHz
1502 MHz
Memory
Memory Size
24GB
2GB
Memory Type
GDDR7
GDDR5
Memory Bus
384bit
192bit
Bandwidth
1.34TB/s
144.2GB/s
Render Config
SM Count
110
—
Shading Units
14080
960
TMUs
440
80
ROPs
160
24
Tensor Cores
440
—
RT Cores
110
—
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
96 MB
384 KB
Theoretical Performance
Pixel Rate
380.3 GPixel/s
20.64 GPixel/s
Texture Rate
1045.9 GTexel/s
82.56 GTexel/s
FP16 (half)
66.94 TFLOPS
—
FP32 (float)
66.94 TFLOPS
1.981 TFLOPS
FP64 (double)
1045.9 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
GB202
GK104
Architecture
Blackwell 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
92.2 billion
3.54 billion
Die Size
750 mm²
294 mm²
Board Design
TDP
500W
140W
Suggested PSU
900 W
300 W
Outputs
1x HDMI 2.1b3x DisplayPort 2.1b
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 16-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.4
1.1
CUDA
12.0
3.0
Shader Model
6.9
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.