NVIDIA RTX A4000 Mobile vs NVIDIA A40 PCIe
GPU · Specs Compare
Graphics Card
Release Date
Apr 2021
Oct 2020
Generation
Ampere-MW
Tesla
Type
Professional
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1140 MHz
1305 MHz
Boost Clock
1680 MHz
1740 MHz
Memory Clock
1500 MHz
1812 MHz
Memory
Memory Size
8GB
48GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
384bit
Bandwidth
384.0GB/s
695.8GB/s
Render Config
SM Count
40
84
Shading Units
5120
10752
TMUs
160
336
ROPs
80
112
Tensor Cores
160
336
RT Cores
40
84
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
4 MB
6 MB
Theoretical Performance
Pixel Rate
134.4 GPixel/s
194.9 GPixel/s
Texture Rate
268.8 GTexel/s
584.6 GTexel/s
FP16 (half)
17.20 TFLOPS
37.42 TFLOPS
FP32 (float)
17.20 TFLOPS
37.42 TFLOPS
FP64 (double)
268.8 GFLOPS
584.6 GFLOPS
Graphics Processor
GPU Name
GA104
GA102
Architecture
Ampere
Ampere
Foundry
Samsung
Samsung
Process Size
8 nm
8 nm
Transistors
17.4 billion
28.3 billion
Die Size
392 mm²
628 mm²
Board Design
TDP
115W
300W
Outputs
Portable Device Dependent
3x DisplayPort 1.4a
Power Connectors
None
8-pin EPS
Suggested PSU
—
700 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.3
CUDA
8.6
8.6
Shader Model
6.8
6.6
Benchmark
Blender
2,825
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▲ Specs Compare
Data sourced from official specifications and benchmark tests.