AMD Radeon R9 M390 Mac Edition vs NVIDIA A40 PCIe
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Oct 2020
Generation
Crystal System
Tesla
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1365 MHz
1812 MHz
Base Clock
—
1305 MHz
Boost Clock
—
1740 MHz
Memory
Memory Size
2GB
48GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
384bit
Bandwidth
174.7GB/s
695.8GB/s
Render Config
Compute Units
16
—
Shading Units
1024
10752
TMUs
64
336
ROPs
32
112
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
6 MB
SM Count
—
84
Tensor Cores
—
336
RT Cores
—
84
Theoretical Performance
Pixel Rate
30.66 GPixel/s
194.9 GPixel/s
Texture Rate
61.31 GTexel/s
584.6 GTexel/s
FP32 (float)
1.962 TFLOPS
37.42 TFLOPS
FP64 (double)
122.6 GFLOPS
584.6 GFLOPS
FP16 (half)
—
37.42 TFLOPS
Graphics Processor
GPU Name
Pitcairn
GA102
GPU Variant
Pitcairn PRO(215-0828062)
—
Architecture
GCN 1.0
Ampere
Foundry
TSMC
Samsung
Process Size
28 nm
8 nm
Transistors
2.8 billion
28.3 billion
Die Size
212 mm²
628 mm²
Board Design
TDP
80W
300W
Outputs
No outputs
3x DisplayPort 1.4a
Power Connectors
None
8-pin EPS
Suggested PSU
—
700 W
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.3
Shader Model
5.1
6.6
CUDA
—
8.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.