NVIDIA B300 SXM6 AC vs AMD Radeon HD 6950
GPU · Specs Compare
Graphics Card
Release Date
Sep 2025
Dec 2010
Generation
Server Blackwell
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 6.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1665 MHz
—
Boost Clock
2032 MHz
—
Memory Clock
2000 MHz
1250 MHz
Memory
Memory Size
288GB
2GB
Memory Type
HBM3e
GDDR5
Memory Bus
8192bit
256bit
Bandwidth
8.19TB/s
160.0GB/s
Render Config
SM Count
148
—
Shading Units
18944
1408
TMUs
592
88
ROPs
24
32
Tensor Cores
592
—
L1 Cache
256 KB (per SM)
8 KB (per CU)
L2 Cache
126 MB
512 KB
Compute Units
—
22
Theoretical Performance
Pixel Rate
48.77 GPixel/s
25.60 GPixel/s
Texture Rate
1202.9 GTexel/s
70.40 GTexel/s
FP16 (half)
76.99 TFLOPS
—
FP32 (float)
76.99 TFLOPS
2.253 TFLOPS
FP64 (double)
1202.9 GFLOPS
563.2 GFLOPS
Graphics Processor
GPU Name
GB110
Cayman
Architecture
Blackwell Ultra
TeraScale 3
Foundry
TSMC
TSMC
Process Size
5 nm
40 nm
Transistors
208 billion
2.64 billion
Die Size
1628 mm²
389 mm²
GPU Variant
—
Cayman PRO(215-0807019)
Board Design
TDP
1100W
200W
Suggested PSU
1500 W
550 W
Outputs
No outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
—
2x 6-pin
Graphics Features
DirectX
N/A
11.2 (11_0)
OpenGL
N/A
4.4
OpenCL
3.0
1.2
Vulkan
N/A
N/A
CUDA
10.3
—
Shader Model
N/A
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.