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