AMD Radeon HD 6950M vs AMD Radeon HD 6450A

VS

AMD Radeon HD 6950M

AMD Radeon HD 6450A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6950M and 512MB VRAM Radeon HD 6450A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950M 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 8.528GB/s)

800 additional rendering cores

AMD Radeon HD 6450A 's Advantages

Lower TDP (25W vs 50W)

Score

Benchmark

FP32 (float)

Radeon HD 6950M +457%

1.114 TFLOPS

Radeon HD 6450A

0.2 TFLOPS

Radeon HD 6950M

VS

Radeon HD 6450A

Graphics Card

Jan 2011

Release Date

Apr 2011

Vancouver

Generation

All-In-One

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

900 MHz

Memory Clock

533 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

8.528GB/s

Render Config

12

Compute Units

2

-

960

Shading Units

160

48

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

18.56 GPixel/s

Pixel Rate

2.500 GPixel/s

27.84 GTexel/s

Texture Rate

5.000 GTexel/s

-

1114 GFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

50W

TDP

25W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Blackcomb

GPU Name

Caicos

Blackcomb PRO

GPU Variant

-

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.37 billion

212 mm²

Die Size

67 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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