AMD Radeon RX 640 Mobile vs AMD Radeon Pro 575

VS

AMD Radeon RX 640 Mobile

AMD Radeon Pro 575

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 4GB VRAM Radeon Pro 575 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 1 years and 11 months late

Boost Clock1218MHz

Lower TDP (50W vs 150W)

AMD Radeon Pro 575 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (217.0GB/s vs 48.00GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon Pro 575 +187%

4.489 TFLOPS

Radeon RX 640 Mobile

VS

Radeon Pro 575

Graphics Card

May 2019

Release Date

Jun 2017

Mobility Radeon

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1500 MHz

Memory Clock

1695 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

217.0GB/s

Render Config

10

Compute Units

32

-

640

Shading Units

2048

40

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

35.07 GPixel/s

48.72 GTexel/s

Texture Rate

140.3 GTexel/s

1.559 TFLOPS

FP16 (half)

4.489 TFLOPS

1.559 TFLOPS

FP32 (float)

4.489 TFLOPS

97.44 GFLOPS

FP64 (double)

280.6 GFLOPS

Board Design

50W

TDP

150W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 23

GPU Name

Polaris 20

Polaris 23 XT

GPU Variant

Polaris 20 XL (215-0910052)

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

5.7 billion

103 mm²

Die Size

232 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

6.4

Shader Model

6.4

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