NVIDIA B300 SXM6 AC vs AMD Radeon Pro Vega 56

GPU Specs Compare

G

NVIDIA B300 SXM6 AC

NVIDIA 2025-09

Graphics Card

Release Date
Sep 2025
Aug 2017
Generation
Server Blackwell
Radeon Pro Mac
Type
Desktop
Mobile
Bus Interface
PCIe 6.0 x16
PCIe 3.0 x16

Clock Speeds

Base Clock
1665 MHz
1138 MHz
Boost Clock
2032 MHz
1250 MHz
Memory Clock
2000 MHz
786 MHz

Memory

Memory Size
288GB
8GB
Memory Type
HBM3e
HBM2
Memory Bus
8192bit
2048bit
Bandwidth
8.19TB/s
402.4GB/s

Render Config

SM Count
148
-
Shading Units
18944
3584
TMUs
592
224
ROPs
24
64
Tensor Cores
592
-
L1 Cache
256 KB (per SM)
16 KB (per CU)
L2 Cache
126 MB
4 MB
Compute Units
-
56

Theoretical Performance

Pixel Rate
48.77 GPixel/s
80.00 GPixel/s
Texture Rate
1202.9 GTexel/s
280.0 GTexel/s
FP16 (half)
76.99 TFLOPS
17.92 TFLOPS
FP32 (float)
76.99 TFLOPS
8.960 TFLOPS
FP64 (double)
1202.9 GFLOPS
560.0 GFLOPS

Graphics Processor

GPU Name
GB110
Vega 10
Architecture
Blackwell Ultra
GCN 5.0
Foundry
TSMC
GlobalFoundries
Process Size
5 nm
14 nm
Transistors
208 billion
12.5 billion
Die Size
1628 mm²
495 mm²
GPU Variant
-
Vega 10 XL(215-0894216)

Board Design

TDP
1100W
210W
Suggested PSU
1500 W
-
Outputs
No outputs
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
-
None

Graphics Features

DirectX
N/A
12 (12_1)
OpenGL
N/A
4.6
OpenCL
3.0
2.1
Vulkan
N/A
1.2
CUDA
10.3
-
Shader Model
N/A
6.4