AMD Radeon R9 390X vs NVIDIA GeForce RTX 4080 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Jun 2015
Jan 2023
Generation
Pirate Islands
GeForce 40 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1500 MHz
2250 MHz
Base Clock
—
1290 MHz
Boost Clock
—
1665 MHz
Memory
Memory Size
8GB
12GB
Memory Type
GDDR5
GDDR6
Memory Bus
512bit
192bit
Bandwidth
384.0GB/s
432.0GB/s
Render Config
Compute Units
44
—
Shading Units
2816
7424
TMUs
176
232
ROPs
64
80
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
1024 KB
48 MB
SM Count
—
58
Tensor Cores
—
232
RT Cores
—
58
Theoretical Performance
Pixel Rate
67.20 GPixel/s
133.2 GPixel/s
Texture Rate
184.8 GTexel/s
386.3 GTexel/s
FP32 (float)
5.914 TFLOPS
24.72 TFLOPS
FP64 (double)
739.2 GFLOPS
386.3 GFLOPS
FP16 (half)
—
24.72 TFLOPS
Graphics Processor
GPU Name
Grenada
AD104
GPU Variant
Grenada XT(215-0880004)
GN21-X9
Architecture
GCN 2.0
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
6.2 billion
35.8 billion
Die Size
438 mm²
294 mm²
Board Design
TDP
275W
110W
Suggested PSU
600 W
—
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Portable Device Dependent
Power Connectors
1x 6-pin + 1x 8-pin
None
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
3.0
Vulkan
1.2
1.3
Shader Model
6.3
6.8
CUDA
—
8.9
▲ Specs Compare
Data sourced from official specifications and benchmark tests.