Product Compare

NVIDIA B300 SXM6 AC vs AMD Radeon R9 260 OEM

GPU GPU
Graphics Card
Release Date Sep 2025 Dec 2013
Generation Server Blackwell Volcanic Islands
Type Desktop Desktop
Bus Interface PCIe 6.0 x16 PCIe 3.0 x16
Clock Speeds
Base Clock 1665 MHz
Boost Clock 2032 MHz
Memory Clock 2000 MHz 1625 MHz
Memory
Memory Size 288GB 1024MB
Memory Type HBM3e GDDR5
Memory Bus 8192bit 128bit
Bandwidth 8.19TB/s 104.0GB/s
Render Config
SM Count 148
Shading Units 18944 896
TMUs 592 56
ROPs 24 16
Tensor Cores 592
L1 Cache 256 KB (per SM) 16 KB (per CU)
L2 Cache 126 MB 256 KB
Compute Units 14
Theoretical Performance
Pixel Rate 48.77 GPixel/s 17.60 GPixel/s
Texture Rate 1202.9 GTexel/s 61.60 GTexel/s
FP16 (half) 76.99 TFLOPS
FP32 (float) 76.99 TFLOPS 1.971 TFLOPS
FP64 (double) 1202.9 GFLOPS 123.2 GFLOPS
Graphics Processor
GPU Name GB110 Bonaire
Architecture Blackwell Ultra GCN 2.0
Foundry TSMC TSMC
Process Size 5 nm 28 nm
Transistors 208 billion 2.08 billion
Die Size 1628 mm² 160 mm²
GPU Variant Bonaire XT(215-0839039)
Board Design
TDP 1100W 85W
Suggested PSU 1500 W 250 W
Outputs No outputs 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors 1x 6-pin
Graphics Features
DirectX N/A 12 (12_0)
OpenGL N/A 4.6
OpenCL 3.0 2.0
Vulkan N/A 1.2
CUDA 10.3
Shader Model N/A 6.3