NVIDIA B300 SXM6 AC vs AMD Radeon Graphics 448SP Mobile
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Jan 2022
Generation
Server Blackwell
Vega II IGP
Type
Desktop
Integrated
Bus Interface
PCIe 6.0 x16
IGP
Clock Speeds
Base Clock
1665 MHz
300 MHz
Boost Clock
2032 MHz
1800 MHz
Memory Clock
2000 MHz
System Shared
Memory
Memory Size
288GB
System Shared
Memory Type
HBM3e
System Shared
Memory Bus
8192bit
System Shared
Bandwidth
8.19TB/s
System Dependent
Render Config
SM Count
148
-
Shading Units
18944
448
TMUs
592
28
ROPs
24
8
Tensor Cores
592
-
L1 Cache
256 KB (per SM)
-
L2 Cache
126 MB
-
Compute Units
-
7
Theoretical Performance
Pixel Rate
48.77 GPixel/s
14.40 GPixel/s
Texture Rate
1202.9 GTexel/s
50.40 GTexel/s
FP16 (half)
76.99 TFLOPS
3.226 TFLOPS
FP32 (float)
76.99 TFLOPS
1.613 TFLOPS
FP64 (double)
1202.9 GFLOPS
100.8 GFLOPS
Graphics Processor
GPU Name
GB110
Barcelo
Architecture
Blackwell Ultra
GCN 5.1
Foundry
TSMC
TSMC
Process Size
5 nm
7 nm
Transistors
208 billion
10.7 billion
Die Size
1628 mm²
180 mm²
Board Design
TDP
1100W
45W
Suggested PSU
1500 W
-
Outputs
No outputs
Portable Device Dependent
Power Connectors
-
None
Graphics Features
DirectX
N/A
12 (12_1)
OpenGL
N/A
4.6
OpenCL
3.0
2.1
Vulkan
N/A
1.3
CUDA
10.3
-
Shader Model
N/A
6.7