NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce GTX 680
GPU · Specs Compare
Graphics Card
Release Date
Jan 2021
Mar 2012
Generation
GeForce 30 Mobile
GeForce 600
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1110 MHz
1006 MHz
Boost Clock
1545 MHz
1058 MHz
Memory Clock
1750 MHz
1502 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
448.0GB/s
192.3GB/s
Render Config
SM Count
48
—
Shading Units
6144
1536
TMUs
192
128
ROPs
96
32
Tensor Cores
192
—
RT Cores
48
—
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
4 MB
512 KB
Theoretical Performance
Pixel Rate
148.3 GPixel/s
33.86 GPixel/s
Texture Rate
296.6 GTexel/s
135.4 GTexel/s
FP16 (half)
18.98 TFLOPS
—
FP32 (float)
18.98 TFLOPS
3.250 TFLOPS
FP64 (double)
296.6 GFLOPS
135.4 GFLOPS
Graphics Processor
GPU Name
GA104
GK104
GPU Variant
GA104-775-A1
GK104-400-A2
Architecture
Ampere
Kepler
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
17.4 billion
3.54 billion
Die Size
392 mm²
294 mm²
Board Design
TDP
115W
195W
Outputs
No outputs
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
1.2.175
CUDA
8.6
3.0
Shader Model
6.6
6.5 (5.1)
▲ Specs Compare
Data sourced from official specifications and benchmark tests.