AMD Radeon HD 6490M vs ATI Mobility Radeon HD 3450

VS

AMD Radeon HD 6490M ATI Mobility Radeon HD 3450

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6490M 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 's Advantages

Released 3 years late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (25.60GB/s vs 6.400GB/s)

120 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M +540%

0.256 TFLOPS

Mobility Radeon HD 3450

0.04 TFLOPS

Radeon HD 6490M

VS

Mobility Radeon HD 3450

Graphics Card

Jan 2011

Release Date

Jan 2008

Vancouver

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-II

Clock Speeds

-

Base Clock

-

Boost Clock

-

800 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

64bit

Memory Bus

64bit

25.60GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

-

2

Compute Units

2

160

Shading Units

40

8

TMUs

4

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

64 KB

Theoretical Performance

3.200 GPixel/s

Pixel Rate

2.000 GPixel/s

6.400 GTexel/s

Texture Rate

2.000 GTexel/s

-

FP16 (half)

-

256.0 GFLOPS

FP32 (float)

40.00 GFLOPS

-

FP64 (double)

-

Graphics Processor

Seymour

GPU Name

M82

Seymour XTX S3 (216-0809024)

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

Board Design

Unknown

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

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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