GPUs

NVIDIA Tesla K20 vs NVIDIA Tesla K20X Full Specs

2,496 Shaders
617MHz
2,688 Shaders
786MHz
5GB GDDR5208GB/s
6GB GDDR5249.6GB/s
··
3.08 TFLOPS
··
4.23 TFLOPS
Form Factor
PCIe Card
Form Factor
PCIe Card
TDP
225W
TDP
235W
Power Connectors
1x 8-Pin
1x 6-Pin
Power Connectors
1x 8-Pin
1x 6-Pin

Tesla K20Tesla K203.08 TFLOPSFP32
x1
Tesla K20XTesla K20X4.23 TFLOPSFP32
x1.37

Clock Speed
···
Clock Speed
···
Peak OPS
3.08 TFLOPSFP32
Peak OPS
4.23 TFLOPSFP32
FP32
3.08 TFLOPS
FP32
4.23 TFLOPS
FP64
1.03 TFLOPS
FP64
1.41 TFLOPS
Pixel Rate
24.7 GPixel/s
Pixel Rate
37.7 GPixel/s
Texture Rate
128.3 GTexel/s
Texture Rate
176.1 GTexel/s

Shaders
2,496 Shaders
Shaders
2,688 Shaders
TMUs
208 TMUs
TMUs
224 TMUs
ROPs
40 ROPs
ROPs
48 ROPs
SMs
13 SMs
SMs
14 SMs

Base Clock
575MHz
Base Clock
732MHz
Boost Clock
617MHz
Boost Clock
786MHz

L2 Cache
1.5MB shared
L2 Cache
1.5MB shared

5GB GDDR5
6GB GDDR5
Memory Bus
320-bit
Memory Bus
384-bit
Memory Speed
5.2GT/s
Memory Speed
5.2GT/s
Memory Bandwidth
208GB/s
Memory Bandwidth
249.6GB/s

TDP
225W
TDP
235W

Encoder Model
NVENC 1
Encoder Model
NVENC 1

Decoder Model
NVDEC 1
Decoder Model
NVDEC 1

Form Factor
PCIe Card
Form Factor
PCIe Card
PCIe
2-Slots
PCIe
2-Slots
Height
111 mm (4.37")
Width
267 mm (10.51")
Depth
39 mm (1.53")
Height
111 mm (4.37")
Width
267 mm (10.51")
Depth
39 mm (1.53")
Cooling
Passive
Cooling
Passive
Power Connectors
1x 8-Pin, 1x 6-Pin
Power Connectors
1x 8-Pin, 1x 6-Pin

Manufacturer
Manufacturer
Chip Designer
Chip Designer
Architecture
Architecture
Family
Family
Branding
Tesla branding
Branding
Tesla branding
Codename
NVF0
Codename
NVF0
Chip Variant
GK110-400-A1
Chip Variant
GK110-400-A1
Market Segment
Server
Market Segment
Server
Release Date
Feb 18, 2013
Release Date
Nov 12, 2012

Foundry
TSMC
Foundry
TSMC
Fabrication Node
28nm
Fabrication Node
28nm
Die Size
561mm²
Die Size
561mm²
Transistor Count
7.1 Billion
Transistor Count
7.1 Billion
Transistor Density
12.62 MTr/mm²
Transistor Density
12.62 MTr/mm²

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