AMD Radeon HD 7970M vs ATI Mobility Radeon HD 5870

VS

AMD Radeon HD 7970M

ATI Mobility Radeon HD 5870

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7970M and 1024MB VRAM Mobility Radeon HD 5870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970M 's Advantages

Released 2 years and 3 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 64.00GB/s)

480 additional rendering cores

ATI Mobility Radeon HD 5870 's Advantages

Lower TDP (50W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 7970M +94%

2.176 TFLOPS

Mobility Radeon HD 5870

1.12 TFLOPS

Radeon HD 7970M

VS

Mobility Radeon HD 5870

Graphics Card

Apr 2012

Release Date

Jan 2010

London

Generation

Manhattan

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1200 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

64.00GB/s

Render Config

20

Compute Units

10

-

1280

Shading Units

800

80

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

11.20 GPixel/s

68.00 GTexel/s

Texture Rate

28.00 GTexel/s

-

2.176 TFLOPS

FP32 (float)

1120 GFLOPS

136.0 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Wimbledon

GPU Name

Broadway

Wimbledon XT (216-0836036)

GPU Variant

Broadway XT (216-0769008)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

1.04 billion

212 mm²

Die Size

166 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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