AMD Radeon Instinct MI455X vs NVIDIA GeForce GTX 950M Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Jul 2026
Mar 2015
Generation
Radeon Instinct
GeForce 900M
Type
Desktop
Mobile
Bus Interface
PCIe 6.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
1000 MHz
993 MHz
Boost Clock
2400 MHz
1124 MHz
Memory Clock
1900 MHz
900 MHz
Memory
Memory Size
432GB
2GB
Memory Type
HBM4
DDR3
Memory Bus
24576bit
128bit
Bandwidth
23.3TB/s
28.80GB/s
Render Config
Compute Units
256
-
Shading Units
32768
640
TMUs
1024
40
ROPs
0
16
L1 Cache
32 KB (per CU)
64 KB (per SMM)
L2 Cache
192 MB
2 MB
Theoretical Performance
Pixel Rate
0 MPixel/s
17.98 GPixel/s
Texture Rate
2457.6 GTexel/s
44.96 GTexel/s
FP16 (half)
157.3 TFLOPS
-
FP32 (float)
157.3 TFLOPS
1439 GFLOPS
FP64 (double)
2.458 TFLOPS
44.96 GFLOPS
Graphics Processor
GPU Name
MI450 256CU
GM107
Architecture
CDNA 5.0
Maxwell
Foundry
TSMC
TSMC
Process Size
2 nm
28 nm
Transistors
320 billion
1.87 billion
Die Size
Unknown
148 mm²
GPU Variant
-
N16P-GT
Board Design
TDP
2300W
75W
Suggested PSU
2700 W
-
Outputs
No outputs
No outputs
Power Connectors
None
-
Graphics Features
DirectX
N/A
12 (11_0)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
Shader Model
N/A
5.1
CUDA
-
5.0