AMD Radeon HD 6450M vs AMD Radeon HD 6490M Mac Edition

VS

AMD Radeon HD 6450M

AMD Radeon HD 6490M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6450M and 256MB VRAM Radeon HD 6490M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450M 's Advantages

More VRAM (1024GB vs 256GB)

AMD Radeon HD 6490M Mac Edition 's Advantages

Larger VRAM bandwidth (25.41GB/s vs 12.80GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6450M

0.192 TFLOPS

Radeon HD 6490M Mac Edition +25%

0.24 TFLOPS

Radeon HD 6450M

VS

Radeon HD 6490M Mac Edition

Graphics Card

Jan 2011

Release Date

May 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

794 MHz

Memory

1024MB

Memory Size

256MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

12.80GB/s

Bandwidth

25.41GB/s

Render Config

2

Compute Units

2

-

160

Shading Units

160

8

TMUs

8

4

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

3.000 GPixel/s

4.800 GTexel/s

Texture Rate

6.000 GTexel/s

-

192.0 GFLOPS

FP32 (float)

240.0 GFLOPS

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Seymour

GPU Name

Seymour

Seymour PRO S3 (216-0809024)

GPU Variant

Seymour XTX M2 (216-0809000)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.37 billion

Transistors

0.37 billion

67 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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