NVIDIA A40 PCIe vs AMD Radeon R9 M395X Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Oct 2020
May 2015
Generation
Tesla
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
1305 MHz
—
Boost Clock
1740 MHz
—
Memory Clock
1812 MHz
1365 MHz
Memory
Memory Size
48GB
4GB
Memory Type
GDDR6
GDDR5
Memory Bus
384bit
256bit
Bandwidth
695.8GB/s
174.7GB/s
Render Config
SM Count
84
—
Shading Units
10752
2048
TMUs
336
128
ROPs
112
32
Tensor Cores
336
—
RT Cores
84
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
6 MB
512 KB
Compute Units
—
32
Theoretical Performance
Pixel Rate
194.9 GPixel/s
29.09 GPixel/s
Texture Rate
584.6 GTexel/s
116.4 GTexel/s
FP16 (half)
37.42 TFLOPS
3.723 TFLOPS
FP32 (float)
37.42 TFLOPS
3.723 TFLOPS
FP64 (double)
584.6 GFLOPS
232.7 GFLOPS
Graphics Processor
GPU Name
GA102
Amethyst
Architecture
Ampere
GCN 3.0
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
28.3 billion
5 billion
Die Size
628 mm²
366 mm²
GPU Variant
—
Amethyst XT
Board Design
TDP
300W
250W
Suggested PSU
700 W
—
Outputs
3x DisplayPort 1.4a
No outputs
Power Connectors
8-pin EPS
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.3
1.2
CUDA
8.6
—
Shader Model
6.6
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.