AMD Radeon R9 M270X vs AMD Radeon RX 640 Mobile

VS

AMD Radeon R9 M270X

AMD Radeon RX 640 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M270X and 2GB VRAM Radeon RX 640 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M270X 's Advantages

Larger VRAM bandwidth (88.00GB/s vs 48.00GB/s)

128 additional rendering cores

AMD Radeon RX 640 Mobile 's Advantages

Released 4 years and 3 months late

Boost Clock has increased by 22% (1218MHz vs 1000MHz)

Score

Benchmark

FP32 (float)

Radeon R9 M270X

1.536 TFLOPS

Radeon RX 640 Mobile +1%

1.559 TFLOPS

Radeon R9 M270X

VS

Radeon RX 640 Mobile

Graphics Card

Feb 2015

Release Date

May 2019

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

1082 MHz

1000 MHz

Boost Clock

1218 MHz

1375 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

88.00GB/s

Bandwidth

48.00GB/s

Render Config

12

Compute Units

10

-

768

Shading Units

640

48

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

19.49 GPixel/s

48.00 GTexel/s

Texture Rate

48.72 GTexel/s

-

FP16 (half)

1.559 TFLOPS

1.536 TFLOPS

FP32 (float)

1.559 TFLOPS

96.00 GFLOPS

FP64 (double)

97.44 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Saturn

GPU Name

Polaris 23

Saturn PRO (216-0843044)

GPU Variant

Polaris 23 XT

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.08 billion

Transistors

2.2 billion

160 mm²

Die Size

103 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.2

-

6.5

Shader Model

6.4

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