AMD Radeon HD 6490M Mac Edition vs AMD Radeon HD 7730M

VS

AMD Radeon HD 6490M Mac Edition

AMD Radeon HD 7730M

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 2GB VRAM Radeon HD 7730M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7730M 's Advantages

Released 11 months late

Boost Clock675MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (28.80GB/s vs 25.41GB/s)

352 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

Radeon HD 7730M +187%

0.691 TFLOPS

Radeon HD 6490M Mac Edition

VS

Radeon HD 7730M

Graphics Card

May 2011

Release Date

Apr 2012

Vancouver

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

575 MHz

-

Boost Clock

675 MHz

794 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

25.41GB/s

Bandwidth

28.80GB/s

Render Config

2

Compute Units

8

-

160

Shading Units

512

8

TMUs

32

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

10.80 GPixel/s

6.000 GTexel/s

Texture Rate

21.60 GTexel/s

-

240.0 GFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Board Design

Unknown

TDP

25W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Seymour

GPU Name

Chelsea

Seymour XTX M2 (216-0809000)

GPU Variant

Chelsea LE (216-0834065)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

1.5 billion

67 mm²

Die Size

123 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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