NVIDIA Rubin GPU vs AMD Radeon HD 7970
GPU · Specs Compare
Graphics Card
Release Date
Jan 2026
Jan 2012
Generation
Server Rubin
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 6.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
700 MHz
—
Boost Clock
2267 MHz
—
Memory Clock
2695 MHz
1375 MHz
Memory
Memory Size
288GB
3GB
Memory Type
HBM4
GDDR5
Memory Bus
16384bit
384bit
Bandwidth
22.1TB/s
264.0GB/s
Render Config
SM Count
224
—
Shading Units
28672
2048
TMUs
896
128
ROPs
24
32
Tensor Cores
896
—
L1 Cache
256 KB (per SM)
16 KB (per CU)
L2 Cache
128 MB
768 KB
Compute Units
—
32
Theoretical Performance
Pixel Rate
54.41 GPixel/s
29.60 GPixel/s
Texture Rate
2031.2 GTexel/s
118.4 GTexel/s
FP16 (half)
260.0 TFLOPS
—
FP32 (float)
130.0 TFLOPS
3.789 TFLOPS
FP64 (double)
32.50 TFLOPS
947.2 GFLOPS
Graphics Processor
GPU Name
GR100
Tahiti
Architecture
Rubin
GCN 1.0
Foundry
TSMC
TSMC
Process Size
3 nm
28 nm
Transistors
336 billion
4.313 billion
Die Size
1456 mm²
352 mm²
GPU Variant
—
Tahiti XT(215-0821060)
Board Design
TDP
2300W
250W
Suggested PSU
2700 W
600 W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
—
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
N/A
12 (11_1)
OpenGL
N/A
4.6
OpenCL
3.0
2.1 (1.2)
Vulkan
N/A
1.2.170
CUDA
10.7
—
Shader Model
N/A
6.5 (5.1)
Benchmark
3DMark Time Spy
—
2,310
3DMark Time Spy Extreme
—
1,209
▲ Specs Compare
Data sourced from official specifications and benchmark tests.