AMD Radeon HD 6490M Mac Edition vs ATI Mobility Radeon HD 3450

VS

AMD Radeon HD 6490M Mac Edition

ATI Mobility Radeon HD 3450

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 256MB VRAM Mobility Radeon HD 3450 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

Released 3 years and 4 months late

Larger VRAM bandwidth (25.41GB/s vs 6.400GB/s)

120 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition +500%

0.24 TFLOPS

Mobility Radeon HD 3450

0.04 TFLOPS

Radeon HD 6490M Mac Edition

VS

Mobility Radeon HD 3450

Graphics Card

May 2011

Release Date

Jan 2008

Vancouver

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-II

Clock Speeds

-

794 MHz

Memory Clock

400 MHz

Memory

256MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

64bit

Memory Bus

64bit

25.41GB/s

Bandwidth

6.400GB/s

Render Config

2

Compute Units

2

-

160

Shading Units

40

8

TMUs

4

ROPs

4

-

8 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

64 KB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

2.000 GPixel/s

6.000 GTexel/s

Texture Rate

2.000 GTexel/s

-

240.0 GFLOPS

FP32 (float)

40.00 GFLOPS

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Seymour

GPU Name

M82

Seymour XTX M2 (216-0809000)

GPU Variant

M82-SCE XT (216-0707011)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.37 billion

Transistors

0.181 billion

67 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

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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