NVIDIA GeForce GTX 680 vs NVIDIA Tesla K40s
GPU · Specs Compare
Graphics Card
Release Date
Mar 2012
Nov 2013
Generation
GeForce 600
Tesla Kepler
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1006 MHz
706 MHz
Boost Clock
1058 MHz
706 MHz
Memory Clock
1502 MHz
1502 MHz
Memory
Memory Size
2GB
12GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
192.3GB/s
288.4GB/s
Render Config
Shading Units
1536
2880
TMUs
128
240
ROPs
32
48
L1 Cache
16 KB (per SMX)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Theoretical Performance
Pixel Rate
33.86 GPixel/s
42.36 GPixel/s
Texture Rate
135.4 GTexel/s
169.4 GTexel/s
FP32 (float)
3.250 TFLOPS
4.067 TFLOPS
FP64 (double)
135.4 GFLOPS
1355.5 GFLOPS
Graphics Processor
GPU Name
GK104
GK110B
GPU Variant
GK104-400-A2
—
Architecture
Kepler
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
7.08 billion
Die Size
294 mm²
561 mm²
Board Design
TDP
195W
245W
Suggested PSU
450 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
—
Graphics Features
DirectX
12 (11_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.2.175
1.2.175
CUDA
3.0
3.5
Shader Model
6.5 (5.1)
6.5 (5.1)
▲ Specs Compare
Data sourced from official specifications and benchmark tests.