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

VS

AMD Radeon HD 6490M Mac Edition

AMD Radeon HD 6450M

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

Main Differences

AMD Radeon HD 6490M Mac Edition 's Advantages

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

AMD Radeon HD 6450M 's Advantages

More VRAM (1024GB vs 256GB)

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition +25%

0.24 TFLOPS

Radeon HD 6450M

0.192 TFLOPS

Radeon HD 6490M Mac Edition

VS

Radeon HD 6450M

Graphics Card

May 2011

Release Date

Jan 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

794 MHz

Memory Clock

800 MHz

Memory

256MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

25.41GB/s

Bandwidth

12.80GB/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

3.000 GPixel/s

Pixel Rate

2.400 GPixel/s

6.000 GTexel/s

Texture Rate

4.800 GTexel/s

-

240.0 GFLOPS

FP32 (float)

192.0 GFLOPS

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Seymour

GPU Name

Seymour

Seymour XTX M2 (216-0809000)

GPU Variant

Seymour PRO S3 (216-0809024)

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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