AMD Radeon HD 7590M vs ATI Mobility Radeon HD 3870 X2

VS

AMD Radeon HD 7590M

ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7590M and 512MB VRAM Mobility Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7590M 's Advantages

Released 3 years and 4 months late

More VRAM (1024GB vs 512GB)

160 additional rendering cores

Lower TDP (18W vs 110W)

ATI Mobility Radeon HD 3870 X2 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 25.60GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 7590M +36%

0.576 TFLOPS

Mobility Radeon HD 3870 X2

0.422 TFLOPS

Radeon HD 7590M

VS

Mobility Radeon HD 3870 X2

Graphics Card

Jan 2012

Release Date

Sep 2008

London

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

850 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

256bit

25.60GB/s

Bandwidth

54.40GB/s

Render Config

6

Compute Units

4

-

480

Shading Units

320

24

TMUs

16

8

ROPs

16

-

L2 Cache

256 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

10.56 GPixel/s

14.40 GTexel/s

Texture Rate

10.56 GTexel/s

-

576.0 GFLOPS

FP32 (float)

422.4 GFLOPS

-

FP64 (double)

84.48 GFLOPS

Board Design

18W

TDP

110W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Thames

GPU Name

M88

Thames XT (216-0833000)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.716 billion

Transistors

0.666 billion

104 mm²

Die Size

192 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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