NVIDIA GeForce GTX 660 vs NVIDIA GeForce RTX 5080 Mobile
GPU Specs Compare
Graphics Card
Release Date
Sep 2012
Apr 2025
Generation
GeForce 600
GeForce 50 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
980 MHz
975 MHz
Boost Clock
1032 MHz
1500 MHz
Memory Clock
1502 MHz
1750 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR7
Memory Bus
192bit
256bit
Bandwidth
144.2GB/s
896.0GB/s
Render Config
Shading Units
960
7680
TMUs
80
240
ROPs
24
96
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
384 KB
64 MB
SM Count
-
60
Tensor Cores
-
240
RT Cores
-
60
Theoretical Performance
Pixel Rate
20.64 GPixel/s
144.0 GPixel/s
Texture Rate
82.56 GTexel/s
360.0 GTexel/s
FP32 (float)
1.981 TFLOPS
23.04 TFLOPS
FP64 (double)
82.56 GFLOPS
360.0 GFLOPS
FP16 (half)
-
23.04 TFLOPS
Graphics Processor
GPU Name
GK106
GB203
GPU Variant
GK106-400-A1
-
Architecture
Kepler
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
2.54 billion
45.6 billion
Die Size
221 mm²
378 mm²
Board Design
TDP
140W
80W
Suggested PSU
300 W
550 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
1.4
CUDA
3.0
12.0
Shader Model
5.1
6.8
📊 Benchmark
3DMark Time Spy
1,194
-
3DMark Time Spy Extreme
260
-
OctaneBench
27
-
Blender
111
-