AMD Radeon RX 640 Mobile vs AMD Radeon R9 M290X Mac Edition

VS

AMD Radeon RX 640 Mobile

AMD Radeon R9 M290X Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 2GB VRAM Radeon R9 M290X Mac Edition 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 and 6 months late

Boost Clock has increased by 25% (1218MHz vs 975MHz)

Lower TDP (50W vs 80W)

AMD Radeon R9 M290X Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 48.00GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon R9 M290X Mac Edition +28%

1.997 TFLOPS

Radeon RX 640 Mobile

VS

Radeon R9 M290X Mac Edition

Graphics Card

May 2019

Release Date

Nov 2014

Mobility Radeon

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1082 MHz

Base Clock

850 MHz

1218 MHz

Boost Clock

975 MHz

1500 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

174.7GB/s

Render Config

10

Compute Units

16

-

640

Shading Units

1024

40

TMUs

64

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

31.20 GPixel/s

48.72 GTexel/s

Texture Rate

62.40 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

1.997 TFLOPS

97.44 GFLOPS

FP64 (double)

124.8 GFLOPS

Board Design

50W

TDP

80W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 23

GPU Name

Pitcairn

Polaris 23 XT

GPU Variant

Pitcairn PRO (215-0828062)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

2.8 billion

103 mm²

Die Size

212 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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