AMD Radeon HD 7970 X2 vs NVIDIA B300
GPU · Specs Compare
Graphics Card
Release Date
Aug 2012
Sep 2025
Generation
Southern Islands
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1375 MHz
2000 MHz
Base Clock
—
1665 MHz
Boost Clock
—
2032 MHz
Memory
Memory Size
3GB
144GB
Memory Type
GDDR5
HBM3e
Memory Bus
384bit
4096bit
Bandwidth
264.0GB/s
4.10TB/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
768 KB
50 MB
SM Count
—
148
Tensor Cores
—
592
Theoretical Performance
Pixel Rate
29.60 GPixel/s
48.77 GPixel/s
Texture Rate
118.4 GTexel/s
1202.9 GTexel/s
FP32 (float)
3.789 TFLOPS
76.99 TFLOPS
FP64 (double)
947.2 GFLOPS
1202.9 GFLOPS
FP16 (half)
—
1231.8 TFLOPS
Graphics Processor
GPU Name
New Zealand
GB110
Architecture
GCN 1.0
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
4.313 billion
104 billion
Die Size
352 mm²
Unknown
Board Design
TDP
500W
1400W
Suggested PSU
900 W
1800 W
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
3x 8-pin
—
Graphics Features
DirectX
12 (11_1)
N/A
OpenGL
4.6
N/A
OpenCL
1.2
3.0
Vulkan
1.2
N/A
Shader Model
5.1
N/A
CUDA
—
10.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.