GPU Comparison
GEFORCE
NVIDIA Tesla K20m
CORE STATE
GK110
VRAM
5 GB
CLOCK SPEED
—
TDP
225 W
BUS WIDTH
320 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
VS
GEFORCE
Tesla M4
CORE STATE
GM206
VRAM
4 GB
CLOCK SPEED
1072 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Tesla K20m
Tesla M4
Core Specs
Shading Units
2,496
1,024
-59.0%
Shaders
2,496
1,024
-59.0%
TMUs
208
64
-69.2%
ROPs
40
32
-20.0%
Clocks
Base Clock
—
872 MHz
Boost Clock
—
1072 MHz
GPU Clock
706 MHz
—
Memory Clock
1300 MHz
5.2 Gbps effective
1375 MHz
5.5 Gbps effective
Memory
Memory Size
5 GB
4 GB
VRAM (MB)
5,120
4,096
-20.0%
Memory Type
GDDR5
GDDR5
Memory Bus
320 bit
128 bit
Bandwidth
208.0 GB/s
88.00 GB/s
Cache
L1 Cache
16 KB (per SMX)
48 KB (per SMM)
L2 Cache
1280 KB
1024 KB
Performance
Pixel Rate
36.71 GPixel/s
34.30 GPixel/s
Texture Rate
146.8 GTexel/s
68.61 GTexel/s
FP32 (TFLOPS)
3.524 TFLOPS
2.195 TFLOPS
FP64 (TFLOPS)
1,174.8 GFLOPS (1:3)
68.61 GFLOPS (1:32)
Power
TDP
225 W
50 W
TDP (W)
225
50
-77.8%
Suggested PSU
550 W
250 W
Power Connectors
1x 6-pin + 1x 8-pin
—
Architecture
Architecture
Kepler
Maxwell 2.0
GPU Name
GK110
GM206
Generation
Tesla Kepler
(Kxx)
Tesla Maxwell
(Mxx)
Process Size
28 nm
28 nm
Transistors
7,080 million
2,940 million
Die Size
561 mm²
228 mm²
Foundry
TSMC
TSMC
Density
12.6M / mm²
12.9M / mm²
API Support
DirectX
12 (11_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.2.175
1.4
OpenCL
3.0
3.0
CUDA
3.5
5.2
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Single-slot
Length
267 mm
10.5 inches
—
Outputs
No outputs
No outputs
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
3,199 USD
—
Production
End-of-life
End-of-life
Predecessor
Tesla Fermi
Tesla Kepler
Successor
Tesla Maxwell
Tesla Pascal