NVIDIA Tesla K20c vs NVIDIA Tesla T40 24 GB
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Unknown
Generation
Tesla
Tesla Turing
Type
Professional
Professional
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1300 MHz
1625 MHz
Base Clock
—
1305 MHz
Boost Clock
—
1560 MHz
Memory
Memory Size
5GB
24GB
Memory Type
GDDR5
GDDR6
Memory Bus
320bit
384bit
Bandwidth
208.0GB/s
624.0GB/s
Render Config
Shading Units
2496
4608
TMUs
208
288
ROPs
40
96
L1 Cache
16 KB (per SMX)
64 KB (per SM)
L2 Cache
1280 KB
6 MB
SM Count
—
72
Tensor Cores
—
576
RT Cores
—
72
Theoretical Performance
Pixel Rate
36.71 GPixel/s
149.8 GPixel/s
Texture Rate
146.8 GTexel/s
449.3 GTexel/s
FP32 (float)
3.524 TFLOPS
14.38 TFLOPS
FP64 (double)
1175 GFLOPS
449.3 GFLOPS
FP16 (half)
—
28.75 TFLOPS
Graphics Processor
GPU Name
GK110
TU102
GPU Variant
GK110-885-KA-A1
—
Architecture
Kepler
Turing
Foundry
TSMC
TSMC
Process Size
28 nm
12 nm
Transistors
7.08 billion
18.6 billion
Die Size
561 mm²
754 mm²
Board Design
TDP
225W
250W
Suggested PSU
550 W
600 W
Outputs
No outputs
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
1x 8-pin
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.3
CUDA
3.5
7.5
Shader Model
5.1
6.8
Benchmark
OctaneBench
55
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.