AMD Radeon RX 580 Mobile vs AMD Radeon HD 6625M

VS

AMD Radeon RX 580 Mobile

AMD Radeon HD 6625M

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580 Mobile and 1024MB VRAM Radeon HD 6625M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 Mobile 's Advantages

Released 6 years and 3 months late

Boost Clock1077MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.0GB/s vs 25.60GB/s)

1824 additional rendering cores

AMD Radeon HD 6625M 's Advantages

Lower TDP (26W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 580 Mobile +1048%

4.963 TFLOPS

Radeon HD 6625M

0.432 TFLOPS

Radeon RX 580 Mobile

VS

Radeon HD 6625M

Graphics Card

Apr 2017

Release Date

Jan 2011

Mobility Radeon

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1077 MHz

Boost Clock

-

2000 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

25.60GB/s

Render Config

36

Compute Units

6

-

2304

Shading Units

480

144

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

3.600 GPixel/s

155.1 GTexel/s

Texture Rate

10.80 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

432.0 GFLOPS

310.2 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

26W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 20

GPU Name

Whistler

Polaris 20M XT

GPU Variant

Whistler LP

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

5.7 billion

Transistors

0.716 billion

232 mm²

Die Size

104 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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