NVIDIA Tesla K40c vs NVIDIA Tesla T4
GPU · Specs Compare
Graphics Card
Release Date
Oct 2013
Sep 2018
Generation
Tesla
Tesla
Type
Professional
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
745 MHz
585 MHz
Boost Clock
876 MHz
1590 MHz
Memory Clock
1502 MHz
1250 MHz
Memory
Memory Size
12GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
384bit
256bit
Bandwidth
288.4GB/s
320.0GB/s
Render Config
Shading Units
2880
2560
TMUs
240
160
ROPs
48
64
L1 Cache
16 KB (per SMX)
64 KB (per SM)
L2 Cache
1536 KB
4 MB
SM Count
—
40
Tensor Cores
—
320
RT Cores
—
40
Theoretical Performance
Pixel Rate
52.56 GPixel/s
101.8 GPixel/s
Texture Rate
210.2 GTexel/s
254.4 GTexel/s
FP32 (float)
5.046 TFLOPS
8.141 TFLOPS
FP64 (double)
1.682 TFLOPS
254.4 GFLOPS
FP16 (half)
—
65.13 TFLOPS
Graphics Processor
GPU Name
GK180
TU104
GPU Variant
GK180-890-A1
TU104-895-A1
Architecture
Kepler
Turing
Foundry
TSMC
TSMC
Process Size
28 nm
12 nm
Transistors
7.08 billion
13.6 billion
Die Size
561 mm²
545 mm²
Board Design
TDP
245W
70W
Suggested PSU
550 W
250 W
Outputs
No outputs
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
None
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
6.6
Benchmark
Blender
—
1,652
▲ Specs Compare
Data sourced from official specifications and benchmark tests.