AMD Radeon R9 M395X vs AMD Radeon RX 6800M

VS

AMD Radeon R9 M395X

AMD Radeon RX 6800M

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M395X and 12GB VRAM Radeon RX 6800M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395X 's Advantages

Lower TDP (75W vs 145W)

AMD Radeon RX 6800M 's Advantages

Released 6 years late

Boost Clock2390MHz

More VRAM (12GB vs 8GB)

Larger VRAM bandwidth (384.0GB/s vs 160.0GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M395X

2.961 TFLOPS

Radeon RX 6800M +313%

12.24 TFLOPS

Radeon R9 M395X

VS

Radeon RX 6800M

Graphics Card

May 2015

Release Date

May 2021

Crystal System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2116 MHz

-

Boost Clock

2390 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

192bit

160.0GB/s

Bandwidth

384.0GB/s

Render Config

32

Compute Units

40

-

2048

Shading Units

2560

128

TMUs

160

32

ROPs

64

-

RT Cores

40

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

23.14 GPixel/s

Pixel Rate

153.0 GPixel/s

92.54 GTexel/s

Texture Rate

382.4 GTexel/s

2.961 TFLOPS

FP16 (half)

24.47 TFLOPS

2.961 TFLOPS

FP32 (float)

12.24 TFLOPS

185.1 GFLOPS

FP64 (double)

764.8 GFLOPS

Board Design

75W

TDP

145W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Navi 22

Amethyst XT

GPU Variant

Navi 22 XTM

GCN 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

5 billion

Transistors

17.2 billion

366 mm²

Die Size

335 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.3

-

6.3

Shader Model

6.5

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