AMD Radeon HD 6450M vs AMD Radeon HD 6870M

VS

AMD Radeon HD 6450M

AMD Radeon HD 6870M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6450M and 1024MB VRAM Radeon HD 6870M 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 12.80GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450M

0.192 TFLOPS

Radeon HD 6870M +462%

1.08 TFLOPS

Radeon HD 6450M

VS

Radeon HD 6870M

Graphics Card

Jan 2011

Release Date

Jan 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

800 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

12.80GB/s

Bandwidth

64.00GB/s

Render Config

2

Compute Units

10

-

160

Shading Units

800

8

TMUs

40

4

ROPs

16

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

10.80 GPixel/s

4.800 GTexel/s

Texture Rate

27.00 GTexel/s

-

192.0 GFLOPS

FP32 (float)

1080 GFLOPS

-

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Seymour

GPU Name

Granville

Seymour PRO S3 (216-0809024)

GPU Variant

Granville XT (216-0769024)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.37 billion

Transistors

1.04 billion

67 mm²

Die Size

166 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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