AMD Radeon R9 390X vs NVIDIA GB10
GPU · Specs Compare
Graphics Card
Release Date
Jun 2015
Oct 2025
Generation
Pirate Islands
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1500 MHz
1067 MHz
Base Clock
—
1665 MHz
Boost Clock
—
2418 MHz
Memory
Memory Size
8GB
128GB
Memory Type
GDDR5
LPDDR5X
Memory Bus
512bit
256bit
Bandwidth
384.0GB/s
273.2GB/s
Render Config
Compute Units
44
—
Shading Units
2816
6144
TMUs
176
384
ROPs
64
48
L1 Cache
16 KB (per CU)
256 KB (per SM)
L2 Cache
1024 KB
50 MB
SM Count
—
48
Tensor Cores
—
384
RT Cores
—
48
Theoretical Performance
Pixel Rate
67.20 GPixel/s
116.1 GPixel/s
Texture Rate
184.8 GTexel/s
928.5 GTexel/s
FP32 (float)
5.914 TFLOPS
29.71 TFLOPS
FP64 (double)
739.2 GFLOPS
464.3 GFLOPS
FP16 (half)
—
29.71 TFLOPS
Graphics Processor
GPU Name
Grenada
GB20B
GPU Variant
Grenada XT(215-0880004)
—
Architecture
GCN 2.0
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
3 nm
Transistors
6.2 billion
Unknown
Die Size
438 mm²
Unknown
Board Design
TDP
275W
140W
Suggested PSU
600 W
300 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI
Power Connectors
1x 6-pin + 1x 8-pin
None
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
—
12.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.