NVIDIA GeForce RTX 3080 Max Q vs AMD Radeon R9 M390X
GPU Specs Compare
Graphics Card
Release Date
Jan 2021
May 2015
Generation
GeForce 30 Mobile
Crystal System
Type
Mobile
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
780 MHz
-
Boost Clock
1245 MHz
-
Memory Clock
1500 MHz
1250 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
384.0GB/s
160.0GB/s
Render Config
SM Count
48
-
Shading Units
6144
2048
TMUs
192
128
ROPs
96
32
Tensor Cores
192
-
RT Cores
48
-
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
4 MB
512 KB
Compute Units
-
32
Theoretical Performance
Pixel Rate
119.5 GPixel/s
23.14 GPixel/s
Texture Rate
239.0 GTexel/s
92.54 GTexel/s
FP16 (half)
15.30 TFLOPS
2.961 TFLOPS
FP32 (float)
15.30 TFLOPS
2.961 TFLOPS
FP64 (double)
239.0 GFLOPS
185.1 GFLOPS
Graphics Processor
GPU Name
GA104
Amethyst
GPU Variant
GA104-775-A1
Amethyst XT
Architecture
Ampere
GCN 3.0
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
17.4 billion
5 billion
Die Size
392 mm²
366 mm²
Board Design
TDP
80W
75W
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.3
1.2
CUDA
8.6
-
Shader Model
6.6
6.3