NVIDIA RTX 4000 Ada Generation vs AMD Radeon Instinct MI355X
GPU Specs Compare
Graphics Card
Release Date
Aug 2023
Jun 2025
Generation
Workstation Ada
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1500 MHz
1000 MHz
Boost Clock
2175 MHz
2400 MHz
Memory Clock
2250 MHz
2000 MHz
Memory
Memory Size
20GB
288GB
Memory Type
GDDR6
HBM3e
Memory Bus
160bit
8192bit
Bandwidth
360.0GB/s
8.19TB/s
Render Config
SM Count
48
-
Shading Units
6144
16384
TMUs
192
1024
ROPs
64
0
Tensor Cores
192
1216
RT Cores
48
-
L1 Cache
128 KB (per SM)
32 KB (per CU)
L2 Cache
48 MB
32 MB
Compute Units
-
256
L3 Cache
-
256 MB
Theoretical Performance
Pixel Rate
139.2 GPixel/s
0 MPixel/s
Texture Rate
417.6 GTexel/s
2457.6 GTexel/s
FP16 (half)
26.73 TFLOPS
78.64 TFLOPS
FP32 (float)
26.73 TFLOPS
78.64 TFLOPS
FP64 (double)
417.6 GFLOPS
39.32 TFLOPS
Graphics Processor
GPU Name
AD104
MI350 256CU
Architecture
Ada Lovelace
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
5 nm
3 nm
Transistors
35.8 billion
185 billion
Die Size
294 mm²
Unknown
Board Design
TDP
130W
1400W
Suggested PSU
300 W
1800 W
Outputs
4x DisplayPort 1.4a
No outputs
Power Connectors
1x 16-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
8.9
-
Shader Model
6.8
N/A