AMD Radeon RX 6800M vs AMD Radeon R9 M270X

VS

AMD Radeon RX 6800M

AMD Radeon R9 M270X

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6800M and 2GB VRAM Radeon R9 M270X 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 and 3 months late

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

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (384.0GB/s vs 88.00GB/s)

1792 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6800M +696%

12.24 TFLOPS

Radeon R9 M270X

1.536 TFLOPS

Radeon RX 6800M

VS

Radeon R9 M270X

Graphics Card

May 2021

Release Date

Feb 2015

Mobility Radeon

Generation

Gem System

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2116 MHz

Base Clock

900 MHz

2390 MHz

Boost Clock

1000 MHz

2000 MHz

Memory Clock

1375 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

128bit

384.0GB/s

Bandwidth

88.00GB/s

Render Config

40

Compute Units

12

-

2560

Shading Units

768

160

TMUs

48

64

ROPs

16

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

153.0 GPixel/s

Pixel Rate

16.00 GPixel/s

382.4 GTexel/s

Texture Rate

48.00 GTexel/s

24.47 TFLOPS

FP16 (half)

-

12.24 TFLOPS

FP32 (float)

1.536 TFLOPS

764.8 GFLOPS

FP64 (double)

96.00 GFLOPS

Board Design

145W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Navi 22

GPU Name

Saturn

Navi 22 XTM

GPU Variant

Saturn PRO (216-0843044)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

17.2 billion

Transistors

2.08 billion

335 mm²

Die Size

160 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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