RTX A4000 vs Radeon Instinct MI300
We compared two Professional market GPUs: 16GB VRAM RTX A4000 and 128GB VRAM Radeon Instinct MI300 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
RTX A4000 's Advantages
Lower TDP (140W vs 600W)
Radeon Instinct MI300 's Advantages
Released 1 years and 9 months late
Boost Clock has increased by 9% (1700MHz vs 1560MHz)
More VRAM (128GB vs 16GB)
Larger VRAM bandwidth (3277GB/s vs 448.0GB/s)
7936 additional rendering cores
Score
Benchmark
FP32 (float)
RTX A4000
19170
Radeon Instinct MI300
+149%
47870
Graphics Card
Apr 2021
Release Date
Jan 2023
Quadro Ampere
Generation
Radeon Instinct
Professional
Type
Professional
PCIe 4.0 x16
Bus Interface
PCIe 5.0 x16
Clock Speeds
735 MHz
Base Clock
1000 MHz
1560 MHz
Boost Clock
1700 MHz
1750 MHz
Memory Clock
1600 MHz
Memory
16GB
Memory Size
128GB
GDDR6
Memory Type
HBM3
256bit
Memory Bus
8192bit
448.0GB/s
Bandwidth
3277GB/s
Render Config
-
Compute Units
220
48
SM Count
-
6144
Shading Units
14080
192
TMUs
880
96
ROPs
0
192
Tensor Cores
880
48
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
16 MB
Theoretical Performance
149.8 GPixel/s
Pixel Rate
0 MPixel/s
299.5 GTexel/s
Texture Rate
1496 GTexel/s
19.17 TFLOPS
FP16 (half)
383.0 TFLOPS
19.17 TFLOPS
FP32 (float)
47.87 TFLOPS
299.5 GFLOPS
FP64 (double)
47.87 TFLOPS
Board Design
140W
TDP
600W
300 W
Suggested PSU
1000 W
4x DisplayPort 1.4a
Outputs
No outputs
1x 6-pin
Power Connectors
2x 8-pin
Graphics Processor
GA104
GPU Name
Aqua Vanjaram
GA104-875-A1
GPU Variant
-
Ampere
Architecture
CDNA 3.0
Samsung
Foundry
TSMC
8 nm
Process Size
5 nm
17.4 billion
Transistors
153 billion
392 mm²
Die Size
1017 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
N/A
4.6
OpenGL
N/A
3.0
OpenCL
3.0
1.3
Vulkan
N/A
8.6
CUDA
-
6.7
Shader Model
N/A
