AMD Radeon RX 640 Mobile vs ATI Radeon E4690 MXM

VS

AMD Radeon RX 640 Mobile

ATI Radeon E4690 MXM

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 512MB VRAM Radeon E4690 MXM 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 9 years and 11 months late

Boost Clock1218MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (48.00GB/s vs 22.40GB/s)

320 additional rendering cores

ATI Radeon E4690 MXM 's Advantages

Lower TDP (30W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile +305%

1.559 TFLOPS

Radeon E4690 MXM

0.384 TFLOPS

Radeon RX 640 Mobile

VS

Radeon E4690 MXM

Graphics Card

May 2019

Release Date

Jun 2009

Mobility Radeon

Generation

Embedded

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-II

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1500 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

22.40GB/s

Render Config

10

Compute Units

4

-

640

Shading Units

320

40

TMUs

32

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

4.800 GPixel/s

48.72 GTexel/s

Texture Rate

19.20 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

384.0 GFLOPS

97.44 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

30W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 23

GPU Name

RV730

Polaris 23 XT

GPU Variant

RV730 XT E4690 (215-0729055)

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

2.2 billion

Transistors

0.514 billion

103 mm²

Die Size

146 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

6.4

Shader Model

4.1

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