AMD Radeon RX 640 Mobile vs AMD Radeon RX Vega M GL

VS

AMD Radeon RX 640 Mobile

AMD Radeon RX Vega M GL

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 4GB VRAM Radeon RX Vega M GL 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 3 months late

Boost Clock has increased by 20% (1218MHz vs 1011MHz)

Lower TDP (50W vs 65W)

AMD Radeon RX Vega M GL 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (179.2GB/s vs 48.00GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon RX Vega M GL +66%

2.588 TFLOPS

Radeon RX 640 Mobile

VS

Radeon RX Vega M GL

Graphics Card

May 2019

Release Date

Feb 2018

Mobility Radeon

Generation

Vega

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

IGP

Clock Speeds

1082 MHz

Base Clock

931 MHz

1218 MHz

Boost Clock

1011 MHz

1500 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

HBM2

64bit

Memory Bus

1024bit

48.00GB/s

Bandwidth

179.2GB/s

Render Config

10

Compute Units

20

-

640

Shading Units

1280

40

TMUs

80

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

32.35 GPixel/s

48.72 GTexel/s

Texture Rate

80.88 GTexel/s

1.559 TFLOPS

FP16 (half)

2.588 TFLOPS

1.559 TFLOPS

FP32 (float)

2.588 TFLOPS

97.44 GFLOPS

FP64 (double)

161.8 GFLOPS

Board Design

50W

TDP

65W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 23

GPU Name

Polaris 22

Polaris 23 XT

GPU Variant

VegaM XL (D715A714)

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

2.2 billion

Transistors

5 billion

103 mm²

Die Size

208 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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