AMD Radeon HD 6750M Mac Edition vs AMD Radeon HD 6490M Mac Edition

VS

AMD Radeon HD 6750M Mac Edition

AMD Radeon HD 6490M Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6750M Mac Edition 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 6750M Mac Edition 's Advantages

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (50.82GB/s vs 25.41GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6750M Mac Edition +139%

0.574 TFLOPS

Radeon HD 6490M Mac Edition

0.24 TFLOPS

Radeon HD 6750M Mac Edition

VS

Radeon HD 6490M Mac Edition

Graphics Card

Apr 2011

Release Date

May 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

794 MHz

Memory Clock

794 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

50.82GB/s

Bandwidth

25.41GB/s

Render Config

6

Compute Units

2

-

480

Shading Units

160

24

TMUs

8

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

4.784 GPixel/s

Pixel Rate

3.000 GPixel/s

14.35 GTexel/s

Texture Rate

6.000 GTexel/s

-

574.1 GFLOPS

FP32 (float)

240.0 GFLOPS

-

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Whistler

GPU Name

Seymour

Whistler PRO (216-0810005)

GPU Variant

Seymour XTX M2 (216-0809000)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

0.37 billion

104 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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