AMD Radeon HD 6625M vs AMD Radeon HD 7770M

VS

AMD Radeon HD 6625M

AMD Radeon HD 7770M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6625M and 1024MB VRAM Radeon HD 7770M 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 32W)

AMD Radeon HD 7770M 's Advantages

Released 1 years and 3 months late

Larger VRAM bandwidth (64.00GB/s vs 25.60GB/s)

32 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6625M

0.432 TFLOPS

Radeon HD 7770M +59%

0.691 TFLOPS

Radeon HD 6625M

VS

Radeon HD 7770M

Graphics Card

Jan 2011

Release Date

Apr 2012

Vancouver

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

64.00GB/s

Render Config

6

Compute Units

8

-

480

Shading Units

512

24

TMUs

32

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

3.600 GPixel/s

Pixel Rate

10.80 GPixel/s

10.80 GTexel/s

Texture Rate

21.60 GTexel/s

-

432.0 GFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Board Design

26W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

Chelsea

Whistler LP

GPU Variant

Chelsea XT

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.5 billion

104 mm²

Die Size

123 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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