Home GPU Comparison NVIDIA GeForce RTX 3080 Mobile vs AMD Radeon R9 M395X

NVIDIA GeForce RTX 3080 Mobile vs AMD Radeon R9 M395X

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Mobile and 8GB VRAM Radeon R9 M395X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Mobile 's Advantages
Released 5 years and 8 months late
Boost Clock1545MHz
Larger VRAM bandwidth (448.0GB/s vs 160.0GB/s)
4096 additional rendering cores
AMD Radeon R9 M395X 's Advantages
Lower TDP (75W vs 115W)

Score

Benchmark

FP32 (float)
GeForce RTX 3080 Mobile +540%
18.98 TFLOPS
Radeon R9 M395X
2.961 TFLOPS
VS

Graphics Card

Jan 2021
Release Date
May 2015
GeForce 30 Mobile
Generation
Crystal System
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

1110 MHz
Base Clock
-
1545 MHz
Boost Clock
-
1750 MHz
Memory Clock
1250 MHz

Memory

8GB
Memory Size
8GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
448.0GB/s
Bandwidth
160.0GB/s

Render Config

-
Compute Units
32
48
SM Count
-
6144
Shading Units
2048
192
TMUs
128
96
ROPs
32
192
Tensor Cores
-
48
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
512 KB
-
-
-

Theoretical Performance

148.3 GPixel/s
Pixel Rate
23.14 GPixel/s
296.6 GTexel/s
Texture Rate
92.54 GTexel/s
18.98 TFLOPS
FP16 (half)
2.961 TFLOPS
18.98 TFLOPS
FP32 (float)
2.961 TFLOPS
296.6 GFLOPS
FP64 (double)
185.1 GFLOPS

Board Design

115W
TDP
75W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
None

Graphics Processor

GA104
GPU Name
Amethyst
GA104-775-A1
GPU Variant
Amethyst XT
Ampere
Architecture
GCN 3.0
Samsung
Foundry
TSMC
8 nm
Process Size
28 nm
17.4 billion
Transistors
5 billion
392 mm²
Die Size
366 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.0
1.3
Vulkan
1.2
8.6
CUDA
-
6.6
Shader Model
6.3

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