AMD Radeon RX 640 Mobile vs AMD Radeon R9 M375X

VS

AMD Radeon RX 640 Mobile

AMD Radeon R9 M375X

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 2GB VRAM Radeon R9 M375X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 640 Mobile 's Advantages

Released 4 years late

Boost Clock has increased by 20% (1218MHz vs 1015MHz)

AMD Radeon R9 M375X 's Advantages

Larger VRAM bandwidth (72.00GB/s vs 48.00GB/s)

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile +20%

1.559 TFLOPS

Radeon R9 M375X

1.299 TFLOPS

Radeon RX 640 Mobile

VS

Radeon R9 M375X

Graphics Card

May 2019

Release Date

May 2015

Mobility Radeon

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1082 MHz

Base Clock

925 MHz

1218 MHz

Boost Clock

1015 MHz

1500 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

72.00GB/s

Render Config

10

Compute Units

10

-

640

Shading Units

640

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

16.24 GPixel/s

48.72 GTexel/s

Texture Rate

40.60 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

1299 GFLOPS

97.44 GFLOPS

FP64 (double)

81.20 GFLOPS

Board Design

50W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Polaris 23

GPU Name

Tropo

Polaris 23 XT

GPU Variant

Tropo XTX

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

1.5 billion

103 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

6.4

Shader Model

6.5 (5.1)

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