AMD Radeon RX 6800S vs AMD Radeon R5 M255

VS

AMD Radeon RX 6800S

AMD Radeon R5 M255

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6800S and 2GB VRAM Radeon R5 M255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800S 's Advantages

Released 7 years and 3 months late

Boost Clock has increased by 123% (2100MHz vs 940MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 32.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6800S +1093%

8.602 TFLOPS

Radeon R5 M255

0.721 TFLOPS

Radeon RX 6800S

VS

Radeon R5 M255

Graphics Card

Jan 2022

Release Date

Oct 2014

Mobility Radeon

Generation

Gem System

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1800 MHz

Base Clock

925 MHz

2100 MHz

Boost Clock

940 MHz

2000 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

128bit

Memory Bus

128bit

256.0GB/s

Bandwidth

32.00GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

384

128

TMUs

24

64

ROPs

8

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

32 MB

L3 Cache

-

Theoretical Performance

134.4 GPixel/s

Pixel Rate

7.520 GPixel/s

268.8 GTexel/s

Texture Rate

22.56 GTexel/s

17.20 TFLOPS

FP16 (half)

721.9 GFLOPS

8.602 TFLOPS

FP32 (float)

721.9 GFLOPS

537.6 GFLOPS

FP64 (double)

45.12 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Navi 23

GPU Name

Topaz

-

GPU Variant

Topaz PRO (216-0858030)

RDNA 2.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

1.55 billion

237 mm²

Die Size

125 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2.170

-

6.5

Shader Model

6.5

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