AMD Radeon R9 M295X vs NVIDIA B300 SXM6 AC
GPU · Specs Compare
Graphics Card
Release Date
Nov 2014
Sep 2025
Generation
Crystal System
Server Blackwell
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 6.0 x16
Clock Speeds
Memory Clock
1250 MHz
2000 MHz
Base Clock
—
1665 MHz
Boost Clock
—
2032 MHz
Memory
Memory Size
4GB
288GB
Memory Type
GDDR5
HBM3e
Memory Bus
256bit
8192bit
Bandwidth
160.0GB/s
8.19TB/s
Render Config
Compute Units
32
—
Shading Units
2048
18944
TMUs
128
592
ROPs
32
24
L1 Cache
16 KB (per CU)
256 KB (per SM)
L2 Cache
512 KB
126 MB
SM Count
—
148
Tensor Cores
—
592
Theoretical Performance
Pixel Rate
23.14 GPixel/s
48.77 GPixel/s
Texture Rate
92.54 GTexel/s
1202.9 GTexel/s
FP16 (half)
2.961 TFLOPS
76.99 TFLOPS
FP32 (float)
2.961 TFLOPS
76.99 TFLOPS
FP64 (double)
185.1 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
Amethyst
GB110
GPU Variant
Amethyst XT
—
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.