GPUs

NVIDIA Tesla K20 vs NVIDIA Tesla K8 Full Specs

2,496 Shaders
617MHz
3,072 Shaders
693MHz
5GB GDDR5208GB/s
16GB GDDR5320GB/s
··
3.08 TFLOPS
··
4.26 TFLOPS
Form Factor
PCIe Card
Form Factor
PCIe Card
TDP
225W
TDP
100W
Power Connectors
1x 8-Pin
1x 6-Pin
Power Connectors
-
1x 6-Pin

Tesla K20Tesla K203.08 TFLOPSFP32
x1
Tesla K8Tesla K84.26 TFLOPSFP32 (2x 2.13 TFLOPS)
x1.38

Clock Speed
···
Clock Speed
··
Peak OPS
3.08 TFLOPSFP32
Peak OPS
4.26 TFLOPSFP32
FP32
3.08 TFLOPS
FP32
4.26 TFLOPS
FP64
1.03 TFLOPS
FP64
177.4 GFLOPS
Pixel Rate
24.7 GPixel/s
Pixel Rate
22.2 GPixel/s
Texture Rate
128.3 GTexel/s
Texture Rate
88.7 GTexel/s

Shaders
2,496 Shaders
Shaders
3,072 Shaders
TMUs
208 TMUs
TMUs
256 TMUs
ROPs
40 ROPs
ROPs
64 ROPs
SMs
13 SMs
SMs
16 SMs

Base Clock
575MHz
Base Clock
-
Boost Clock
617MHz
Boost Clock
693MHz

L2 Cache
1.5MB shared
L2 Cache
512KB shared

5GB GDDR5
16GB GDDR5
Memory Bus
320-bit
Memory Bus
256-bit
Memory Speed
5.2GT/s
Memory Speed
5GT/s
Memory Bandwidth
208GB/s
Memory Bandwidth
320GB/s

TDP
225W
TDP
100W

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
1-Slots
Height
111 mm (4.37")
Width
267 mm (10.51")
Depth
39 mm (1.53")
Height
111 mm (4.37")
Width
241 mm (9.49")
Depth
20 mm (0.79")
Cooling
Passive
-
Cooling
Blower
1x Fan
Power Connectors
1x 8-Pin, 1x 6-Pin
Power Connectors
1x 6-Pin

Manufacturer
Manufacturer
Chip Designer
Chip Designer
Architecture
Architecture
Family
Family
Branding
Tesla branding
Branding
Tesla branding
Codename
NVF0
Codename
NVE4
Chip Variant
GK110-400-A1
Chip Variant
GK104-200-KD-A2
Market Segment
Server
Market Segment
Server
Release Date
Feb 18, 2013
Release Date
May 1, 2012

Foundry
TSMC
Foundry
TSMC
Fabrication Node
28nm
Fabrication Node
28nm
Die Size
561mm²
Die Size
294mm²
Transistor Count
7.1 Billion
Transistor Count
3.5 Billion
Transistor Density
12.62 MTr/mm²
Transistor Density
12.04 MTr/mm²

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