AMD Radeon R9 M295X vs AMD Radeon RX 640 Mobile

VS

AMD Radeon R9 M295X

AMD Radeon RX 640 Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X 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 M295X 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 48.00GB/s)

1408 additional rendering cores

AMD Radeon RX 640 Mobile 's Advantages

Released 4 years and 6 months late

Boost Clock1218MHz

Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M295X +89%

2.961 TFLOPS

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon R9 M295X

VS

Radeon RX 640 Mobile

Graphics Card

Nov 2014

Release Date

May 2019

Crystal System

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1082 MHz

-

Boost Clock

1218 MHz

1250 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

48.00GB/s

Render Config

32

Compute Units

10

-

2048

Shading Units

640

128

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

19.49 GPixel/s

92.54 GTexel/s

Texture Rate

48.72 GTexel/s

2.961 TFLOPS

FP16 (half)

1.559 TFLOPS

2.961 TFLOPS

FP32 (float)

1.559 TFLOPS

185.1 GFLOPS

FP64 (double)

97.44 GFLOPS

Board Design

250W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Polaris 23

Amethyst XT

GPU Variant

Polaris 23 XT

GCN 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

5 billion

Transistors

2.2 billion

366 mm²

Die Size

103 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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