NVIDIA Tesla K20s vs NVIDIA GeForce GTX 680 Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Feb 2013
Apr 2013
Generation
Tesla
GeForce 600
Type
Professional
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1300 MHz
1502 MHz
Base Clock
-
1006 MHz
Boost Clock
-
1058 MHz
Memory
Memory Size
5GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
320bit
256bit
Bandwidth
208.0GB/s
192.3GB/s
Render Config
Shading Units
2496
1536
TMUs
208
128
ROPs
40
32
L1 Cache
16 KB (per SMX)
16 KB (per SMX)
L2 Cache
1280 KB
512 KB
Theoretical Performance
Pixel Rate
29.90 GPixel/s
33.86 GPixel/s
Texture Rate
119.6 GTexel/s
135.4 GTexel/s
FP32 (float)
2.870 TFLOPS
3.250 TFLOPS
FP64 (double)
956.8 GFLOPS
135.4 GFLOPS
Graphics Processor
GPU Name
GK110
GK104
Architecture
Kepler
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
3.54 billion
Die Size
561 mm²
294 mm²
GPU Variant
-
GK104-400-A2
Board Design
TDP
225W
195W
Suggested PSU
550 W
450 W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
-
2x 6-pin
Graphics Features
DirectX
12 (11_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.1
CUDA
3.5
3.0
Shader Model
5.1
5.1