NVIDIA A40 PCIe vs NVIDIA Tesla K8
GPU Specs Compare
Graphics Card
Release Date
Oct 2020
Sep 2014
Generation
Tesla
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1305 MHz
693 MHz
Boost Clock
1740 MHz
811 MHz
Memory Clock
1812 MHz
1250 MHz
Memory
Memory Size
48GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
384bit
256bit
Bandwidth
695.8GB/s
160.0GB/s
Render Config
SM Count
84
-
Shading Units
10752
1536
TMUs
336
128
ROPs
112
32
Tensor Cores
336
-
RT Cores
84
-
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
6 MB
512 KB
Theoretical Performance
Pixel Rate
194.9 GPixel/s
25.95 GPixel/s
Texture Rate
584.6 GTexel/s
103.8 GTexel/s
FP16 (half)
37.42 TFLOPS
-
FP32 (float)
37.42 TFLOPS
2.491 TFLOPS
FP64 (double)
584.6 GFLOPS
103.8 GFLOPS
Graphics Processor
GPU Name
GA102
GK104
Architecture
Ampere
Kepler
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
28.3 billion
3.54 billion
Die Size
628 mm²
294 mm²
Board Design
TDP
300W
100W
Suggested PSU
700 W
300 W
Outputs
3x DisplayPort 1.4a
No outputs
Power Connectors
8-pin EPS
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
8.6
3.0
Shader Model
6.6
5.1