AMD Radeon R9 390X vs NVIDIA Rubin GPU
GPU · Specs Compare
Graphics Card
Release Date
Jun 2015
Jan 2026
Generation
Pirate Islands
Server Rubin
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 6.0 x16
Clock Speeds
Memory Clock
1500 MHz
2695 MHz
Base Clock
—
700 MHz
Boost Clock
—
2267 MHz
Memory
Memory Size
8GB
288GB
Memory Type
GDDR5
HBM4
Memory Bus
512bit
16384bit
Bandwidth
384.0GB/s
22.1TB/s
Render Config
Compute Units
44
—
Shading Units
2816
28672
TMUs
176
896
ROPs
64
24
L1 Cache
16 KB (per CU)
256 KB (per SM)
L2 Cache
1024 KB
128 MB
SM Count
—
224
Tensor Cores
—
896
Theoretical Performance
Pixel Rate
67.20 GPixel/s
54.41 GPixel/s
Texture Rate
184.8 GTexel/s
2031.2 GTexel/s
FP32 (float)
5.914 TFLOPS
130.0 TFLOPS
FP64 (double)
739.2 GFLOPS
32.50 TFLOPS
FP16 (half)
—
260.0 TFLOPS
Graphics Processor
GPU Name
Grenada
GR100
GPU Variant
Grenada XT(215-0880004)
—
Architecture
GCN 2.0
Rubin
Foundry
TSMC
TSMC
Process Size
28 nm
3 nm
Transistors
6.2 billion
336 billion
Die Size
438 mm²
1456 mm²
Board Design
TDP
275W
2300W
Suggested PSU
600 W
2700 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
—
Graphics Features
DirectX
12 (12_0)
N/A
OpenGL
4.6
N/A
OpenCL
2.0
3.0
Vulkan
1.2
N/A
Shader Model
6.3
N/A
CUDA
—
10.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.