Home GPU Comparison NVIDIA Tesla P40 vs NVIDIA Tesla K40d

NVIDIA Tesla P40 vs NVIDIA Tesla K40d

We compared two Professional market GPUs: 24GB VRAM Tesla P40 and 12GB VRAM Tesla K40d to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla P40 's Advantages
Released 2 years and 10 months late
Boost Clock has increased by 75% (1531MHz vs 876MHz)
More VRAM (24GB vs 12GB)
Larger VRAM bandwidth (347.1GB/s vs 288.4GB/s)
960 additional rendering cores
NVIDIA Tesla K40d 's Advantages
Lower TDP (245W vs 250W)

Score

Benchmark

FP32 (float)
Tesla P40 +133%
11.76 TFLOPS
Tesla K40d
5.046 TFLOPS
VS

Graphics Card

Sep 2016
Release Date
Nov 2013
Tesla Pascal
Generation
Tesla
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

1303 MHz
Base Clock
745 MHz
1531 MHz
Boost Clock
876 MHz
1808 MHz
Memory Clock
1502 MHz

Memory

24GB
Memory Size
12GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
384bit
347.1GB/s
Bandwidth
288.4GB/s

Render Config

-
-
-
30
SM Count
-
3840
Shading Units
2880
240
TMUs
240
96
ROPs
48
-
-
-
-
-
-
48 KB (per SM)
L1 Cache
16 KB (per SMX)
3 MB
L2 Cache
1536 KB
-
-
-

Theoretical Performance

147.0 GPixel/s
Pixel Rate
52.56 GPixel/s
367.4 GTexel/s
Texture Rate
210.2 GTexel/s
183.7 GFLOPS
FP16 (half)
-
11.76 TFLOPS
FP32 (float)
5.046 TFLOPS
367.4 GFLOPS
FP64 (double)
1.682 TFLOPS

Board Design

250W
TDP
245W
600 W
Suggested PSU
550 W
No outputs
Outputs
No outputs
8-pin EPS
Power Connectors
-

Graphics Processor

GP102
GPU Name
GK110B
-
-
-
Pascal
Architecture
Kepler
TSMC
Foundry
TSMC
16 nm
Process Size
28 nm
11.8 billion
Transistors
7.08 billion
471 mm²
Die Size
561 mm²

Graphics Features

12 (12_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
6.1
CUDA
3.5
6.7
Shader Model
5.1

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