AMD Radeon HD 6490M Mac Edition vs ATI Mobility Radeon HD 3850 X2

VS

AMD Radeon HD 6490M Mac Edition ATI Mobility Radeon HD 3850 X2

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 512MB VRAM Mobility Radeon HD 3850 X2 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 2 years and 11 months late

ATI Mobility Radeon HD 3850 X2 's Advantages

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (48.00GB/s vs 25.41GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

Mobility Radeon HD 3850 X2 +54%

0.371 TFLOPS

Radeon HD 6490M Mac Edition

VS

Mobility Radeon HD 3850 X2

Graphics Card

May 2011

Release Date

Jun 2008

Vancouver

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

794 MHz

Memory Clock

750 MHz

Memory

256MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

256bit

25.41GB/s

Bandwidth

48.00GB/s

Render Config

-

SM Count

-

2

Compute Units

4

160

Shading Units

320

8

TMUs

16

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

256 KB

Theoretical Performance

3.000 GPixel/s

Pixel Rate

9.280 GPixel/s

6.000 GTexel/s

Texture Rate

9.280 GTexel/s

-

FP16 (half)

-

240.0 GFLOPS

FP32 (float)

371.2 GFLOPS

-

FP64 (double)

74.24 GFLOPS

Graphics Processor

Seymour

GPU Name

M88

Seymour XTX M2 (216-0809000)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.37 billion

Transistors

0.666 billion

67 mm²

Die Size

192 mm²

Board Design

Unknown

TDP

70W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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