AMD Radeon HD 6625M vs AMD Radeon R9 M290X Mac Edition

VS

AMD Radeon HD 6625M

AMD Radeon R9 M290X Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6625M 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 HD 6625M 's Advantages

Lower TDP (26W vs 80W)

AMD Radeon R9 M290X Mac Edition 's Advantages

Released 3 years and 10 months late

Boost Clock975MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 25.60GB/s)

544 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6625M

0.432 TFLOPS

Radeon R9 M290X Mac Edition +362%

1.997 TFLOPS

Radeon HD 6625M

VS

Radeon R9 M290X Mac Edition

Graphics Card

Jan 2011

Release Date

Nov 2014

Vancouver

Generation

Crystal System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

975 MHz

800 MHz

Memory Clock

1365 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

174.7GB/s

Render Config

6

Compute Units

16

-

480

Shading Units

1024

24

TMUs

64

8

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

3.600 GPixel/s

Pixel Rate

31.20 GPixel/s

10.80 GTexel/s

Texture Rate

62.40 GTexel/s

-

432.0 GFLOPS

FP32 (float)

1.997 TFLOPS

-

FP64 (double)

124.8 GFLOPS

Board Design

26W

TDP

80W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Whistler

GPU Name

Pitcairn

Whistler LP

GPU Variant

Pitcairn PRO (215-0828062)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

2.8 billion

104 mm²

Die Size

212 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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