AMD Radeon HD 6870M vs AMD Radeon 625 Mobile

VS

AMD Radeon HD 6870M

AMD Radeon 625 Mobile

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 2GB VRAM Radeon 625 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)

416 additional rendering cores

AMD Radeon 625 Mobile 's Advantages

Released 8 years and 4 months late

Boost Clock1024MHz

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon HD 6870M +37%

1.08 TFLOPS

Radeon 625 Mobile

0.786 TFLOPS

Radeon HD 6870M

VS

Radeon 625 Mobile

Graphics Card

Jan 2011

Release Date

May 2019

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

730 MHz

-

Boost Clock

1024 MHz

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

14.40GB/s

Render Config

10

Compute Units

6

-

800

Shading Units

384

40

TMUs

24

16

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

8.192 GPixel/s

27.00 GTexel/s

Texture Rate

24.58 GTexel/s

-

FP16 (half)

786.4 GFLOPS

1080 GFLOPS

FP32 (float)

786.4 GFLOPS

-

FP64 (double)

49.15 GFLOPS

Board Design

50W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Granville

GPU Name

Polaris 24

Granville XT (216-0769024)

GPU Variant

Polaris 24 XT (216-0867030)

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

1.55 billion

166 mm²

Die Size

125 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

5.0

Shader Model

6.3

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