AMD Radeon R9 M395 Mac Edition vs NVIDIA B300 SXM6 AC
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Sep 2025
Generation
Crystal System
Server Blackwell
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 6.0 x16
Clock Speeds
Memory Clock
1365 MHz
2000 MHz
Base Clock
—
1665 MHz
Boost Clock
—
2032 MHz
Memory
Memory Size
2GB
288GB
Memory Type
GDDR5
HBM3e
Memory Bus
256bit
8192bit
Bandwidth
174.7GB/s
8.19TB/s
Render Config
Compute Units
28
—
Shading Units
1792
18944
TMUs
112
592
ROPs
32
24
SM Count
—
148
Tensor Cores
—
592
L1 Cache
—
256 KB (per SM)
L2 Cache
—
126 MB
Theoretical Performance
Pixel Rate
26.69 GPixel/s
48.77 GPixel/s
Texture Rate
93.41 GTexel/s
1202.9 GTexel/s
FP32 (float)
2.989 TFLOPS
76.99 TFLOPS
FP64 (double)
373.6 GFLOPS
1202.9 GFLOPS
FP16 (half)
—
76.99 TFLOPS
Graphics Processor
GPU Name
Amethyst
GB110
GPU Variant
Amethyst PRO(216-0872004)
—
Architecture
GCN 3.0
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
5 billion
208 billion
Die Size
366 mm²
1628 mm²
Board Design
TDP
250W
1100W
Outputs
No outputs
No outputs
Power Connectors
None
—
Suggested PSU
—
1500 W
Graphics Features
DirectX
12 (12_0)
N/A
OpenGL
4.6
N/A
OpenCL
2.0
3.0
Vulkan
1.2
N/A
Shader Model
6.3
N/A
CUDA
—
10.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.