Chapter 4. IBM NeXtScale nx360 M4 compute node
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Table 4-22 Comparison of NVIDIA GPUs
Use Case
High Performance Computing
Virtual Graphics
Technical
Specifications
Tesla K40
Tesla K20X
Tesla K20
Tesla K10
Grid K2
Grid K1
Peak
double-precision
FP performance
(board)
1.43
Tflops
1.31
Tflops
1.17
Tflops
0.19
Tflops
N/A
N/A
Peak
single-precision FP
performance
(board)
4.29
Tflops
3.95
Tflops
3.52
Tflops
4.58
Tflops
4.30 Tflops
(2 x 2.15
Tflops)
N/A
Number of physical
GPUs
1x GK110B
1x GK110
1x GK110
2x GK104
4x GK107
Number of CUDA
cores
2,880
2,688
2,496
3,072 (2 x 1,536)
768
(4 x 192)
Memory size per
board
12 GB
6 GB
5 GB
8 GB (2 x 4 GB)
16 GB
(4 x 4 GB)
Memory bandwidth
per board
288 Gb/s
250 Gb/s
208 Gb/s
320 Gb/s
116 Gb/s
Memory I/O
384-bit GDDR5
320-bit GDDR5
256-bit GDDR5
128-bit DDR3
Max Power
235W
225W
130W
Aux Power
1 x 8-pin and 1 x 6-pin
1 x 6-pin
PCI Interface
Gen 3 x16
Gen 2 x16
Gen3 x16
Physical display
connectors
None
Cooling
Passive, Active
Passive
Passive, Active
Passive
Memory Clock
3.0 GHz
2.6 GHz
2.5 GHz
891 MHz
NVIDIA GPU Boost
Yes
No
Base Core Clock
745 MHz
732MHz
706MHz
745 MHz
850 MHz
Boost Clocks
810 MHz
875 MHz
Not applicable
Memory Error
Protection
Yes Enabled (External & Internal)
Yes (External Only)
No
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