AMD Radeon Instinct MI8 vs NVIDIA RTX A4 Mobile
We compared two Professional market GPUs: 4GB VRAM Radeon Instinct MI8 and 4GB VRAM RTX A4 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Instinct MI8 's Advantages
Larger VRAM bandwidth (512.0GB/s vs 224.0GB/s)
2048 additional rendering cores
NVIDIA RTX A4 Mobile 's Advantages
Released 4 years and 4 months late
Boost Clock1770MHz
Score
Benchmark
FP32 (float)
Radeon Instinct MI8
+12%
8.192 TFLOPS
RTX A4 Mobile
7.25 TFLOPS
Graphics Card
Dec 2016
Release Date
Apr 2021
Radeon Instinct
Generation
Quadro Ampere-M
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x8
Clock Speeds
-
Base Clock
1297 MHz
-
Boost Clock
1770 MHz
500 MHz
Memory Clock
1750 MHz
Memory
4GB
Memory Size
4GB
HBM
Memory Type
GDDR6
4096bit
Memory Bus
128bit
512.0GB/s
Bandwidth
224.0GB/s
Render Config
64
Compute Units
-
-
SM Count
16
4096
Shading Units
2048
256
TMUs
64
64
ROPs
32
-
Tensor Cores
64
-
RT Cores
16
16 KB (per CU)
L1 Cache
128 KB (per SM)
2 MB
L2 Cache
2 MB
-
-
-
Theoretical Performance
64.00 GPixel/s
Pixel Rate
56.64 GPixel/s
256.0 GTexel/s
Texture Rate
113.3 GTexel/s
8.192 TFLOPS
FP16 (half)
7.250 TFLOPS
8.192 TFLOPS
FP32 (float)
7.250 TFLOPS
512.0 GFLOPS
FP64 (double)
113.3 GFLOPS
Board Design
175W
TDP
Unknown
450 W
Suggested PSU
-
No outputs
Outputs
Portable Device Dependent
1x 8-pin
Power Connectors
None
Graphics Processor
Fiji
GPU Name
GA107
Fiji XT CA
(215-0862120)
GPU Variant
-
GCN 3.0
Architecture
Ampere
TSMC
Foundry
Samsung
28 nm
Process Size
8 nm
8.9 billion
Transistors
8.7 billion
596 mm²
Die Size
200 mm²
Graphics Features
12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.2.170
Vulkan
1.3
-
CUDA
8.6
6.5
Shader Model
6.7
