AMD Radeon HD 6450M vs ATI Mobility Radeon HD 3870 X2

VS

AMD Radeon HD 6450M

ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6450M 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 6450M 's Advantages

Released 2 years and 4 months late

More VRAM (1024GB vs 512GB)

ATI Mobility Radeon HD 3870 X2 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 12.80GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450M

0.192 TFLOPS

Mobility Radeon HD 3870 X2 +119%

0.422 TFLOPS

Radeon HD 6450M

VS

Mobility Radeon HD 3870 X2

Graphics Card

Jan 2011

Release Date

Sep 2008

Vancouver

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

DDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

12.80GB/s

Bandwidth

54.40GB/s

Render Config

2

Compute Units

4

-

160

Shading Units

320

8

TMUs

16

4

ROPs

16

-

8 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

10.56 GPixel/s

4.800 GTexel/s

Texture Rate

10.56 GTexel/s

-

192.0 GFLOPS

FP32 (float)

422.4 GFLOPS

-

FP64 (double)

84.48 GFLOPS

Board Design

Unknown

TDP

110W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Seymour

GPU Name

M88

Seymour PRO S3 (216-0809024)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.37 billion

Transistors

0.666 billion

67 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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