AMD Radeon R9 M385 vs AMD Radeon RX 6800M

VS

AMD Radeon R9 M385

AMD Radeon RX 6800M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385 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 RX 6800M 's Advantages

Released 6 years late

Boost Clock has increased by 139% (2390MHz vs 1000MHz)

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (384.0GB/s vs 76.80GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M385

1.792 TFLOPS

Radeon RX 6800M +583%

12.24 TFLOPS

Radeon R9 M385

VS

Radeon RX 6800M

Graphics Card

May 2015

Release Date

May 2021

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

900 MHz

Base Clock

2116 MHz

1000 MHz

Boost Clock

2390 MHz

1200 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

192bit

76.80GB/s

Bandwidth

384.0GB/s

Render Config

14

Compute Units

40

-

896

Shading Units

2560

56

TMUs

160

16

ROPs

64

-

RT Cores

40

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

16.00 GPixel/s

Pixel Rate

153.0 GPixel/s

56.00 GTexel/s

Texture Rate

382.4 GTexel/s

-

FP16 (half)

24.47 TFLOPS

1.792 TFLOPS

FP32 (float)

12.24 TFLOPS

112.0 GFLOPS

FP64 (double)

764.8 GFLOPS

Board Design

Unknown

TDP

145W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Strato

GPU Name

Navi 22

Strato XT

GPU Variant

Navi 22 XTM

GCN 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

2.08 billion

Transistors

17.2 billion

160 mm²

Die Size

335 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.3

-

6.5

Shader Model

6.5

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