NVIDIA RTX A4000 Mobile vs AMD Radeon Instinct MI8
We compared two Professional market GPUs: 8GB VRAM RTX A4000 Mobile and 4GB VRAM Radeon Instinct MI8 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA RTX A4000 Mobile 's Advantages
Released 4 years and 4 months late
Boost Clock1680MHz
More VRAM (8GB vs 4GB)
1024 additional rendering cores
Lower TDP (115W vs 175W)
AMD Radeon Instinct MI8 's Advantages
Larger VRAM bandwidth (512.0GB/s vs 384.0GB/s)
Score
Benchmark
FP32 (float)
RTX A4000 Mobile
+109%
17.2 TFLOPS
Radeon Instinct MI8
8.192 TFLOPS
Graphics Card
Apr 2021
Release Date
Dec 2016
Ampere-MW
Generation
Radeon Instinct
Professional
Type
Professional
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1140 MHz
Base Clock
-
1680 MHz
Boost Clock
-
1500 MHz
Memory Clock
500 MHz
Memory
8GB
Memory Size
4GB
GDDR6
Memory Type
HBM
256bit
Memory Bus
4096bit
384.0GB/s
Bandwidth
512.0GB/s
Render Config
-
Compute Units
64
40
SM Count
-
5120
Shading Units
4096
160
TMUs
256
80
ROPs
64
160
Tensor Cores
-
40
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
2 MB
-
-
-
Theoretical Performance
134.4 GPixel/s
Pixel Rate
64.00 GPixel/s
268.8 GTexel/s
Texture Rate
256.0 GTexel/s
17.20 TFLOPS
FP16 (half)
8.192 TFLOPS
17.20 TFLOPS
FP32 (float)
8.192 TFLOPS
268.8 GFLOPS
FP64 (double)
512.0 GFLOPS
Board Design
115W
TDP
175W
-
Suggested PSU
450 W
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
1x 8-pin
Graphics Processor
GA104
GPU Name
Fiji
-
GPU Variant
Fiji XT CA
(215-0862120)
Ampere
Architecture
GCN 3.0
Samsung
Foundry
TSMC
8 nm
Process Size
28 nm
17.4 billion
Transistors
8.9 billion
392 mm²
Die Size
596 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.3
Vulkan
1.2.170
8.6
CUDA
-
6.8
Shader Model
6.5
