ATI Mobility Radeon HD 4650 vs AMD Radeon HD 6490M Mac Edition

VS

ATI Mobility Radeon HD 4650

AMD Radeon HD 6490M Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4650 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

ATI Mobility Radeon HD 4650 's Advantages

More VRAM (512GB vs 256GB)

160 additional rendering cores

AMD Radeon HD 6490M Mac Edition 's Advantages

Released 2 years and 4 months late

Larger VRAM bandwidth (25.41GB/s vs 19.20GB/s)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4650 +33%

0.32 TFLOPS

Radeon HD 6490M Mac Edition

0.24 TFLOPS

Mobility Radeon HD 4650

VS

Radeon HD 6490M Mac Edition

Graphics Card

Jan 2009

Release Date

May 2011

M9x

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

600 MHz

Memory Clock

794 MHz

Memory

512MB

Memory Size

256MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

64bit

19.20GB/s

Bandwidth

25.41GB/s

Render Config

4

Compute Units

2

-

320

Shading Units

160

32

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

4.000 GPixel/s

Pixel Rate

3.000 GPixel/s

16.00 GTexel/s

Texture Rate

6.000 GTexel/s

-

320.0 GFLOPS

FP32 (float)

240.0 GFLOPS

-

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

M96

GPU Name

Seymour

-

GPU Variant

Seymour XTX M2 (216-0809000)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.514 billion

Transistors

0.37 billion

146 mm²

Die Size

67 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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