NVIDIA Tesla K40d vs NVIDIA Tesla C2070
We compared two Professional market GPUs: 12GB VRAM Tesla K40d and 6GB VRAM Tesla C2070 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K40d 's Advantages
Released 2 years and 4 months late
Boost Clock876MHz
More VRAM (12GB vs 6GB)
Larger VRAM bandwidth (288.4GB/s vs 143.4GB/s)
2432 additional rendering cores
NVIDIA Tesla C2070 's Advantages
Lower TDP (238W vs 245W)
Score
Benchmark
FP32 (float)
Tesla K40d
+390%
5.046 TFLOPS
Tesla C2070
1.028 TFLOPS
Graphics Card
Nov 2013
Release Date
Jul 2011
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
745 MHz
Base Clock
-
876 MHz
Boost Clock
-
1502 MHz
Memory Clock
747 MHz
Memory
12GB
Memory Size
6GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
384bit
288.4GB/s
Bandwidth
143.4GB/s
Render Config
-
-
-
-
SM Count
14
2880
Shading Units
448
240
TMUs
56
48
ROPs
48
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
1536 KB
L2 Cache
768 KB
-
-
-
Theoretical Performance
52.56 GPixel/s
Pixel Rate
16.07 GPixel/s
210.2 GTexel/s
Texture Rate
32.14 GTexel/s
-
-
-
5.046 TFLOPS
FP32 (float)
1028 GFLOPS
1.682 TFLOPS
FP64 (double)
513.9 GFLOPS
Board Design
245W
TDP
238W
550 W
Suggested PSU
550 W
No outputs
Outputs
1x DVI
-
Power Connectors
1x 8-pin
Graphics Processor
GK110B
GPU Name
GF100
-
-
-
Kepler
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
7.08 billion
Transistors
3.1 billion
561 mm²
Die Size
529 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.5
CUDA
2.0
5.1
Shader Model
5.1
