AMD Radeon HD 7490M vs AMD Radeon HD 6450A

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7490M and 512MB VRAM Radeon HD 6450A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7490M 's Advantages

Released 9 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (30.40GB/s vs 8.528GB/s)

Lower TDP (9W vs 25W)

Score

Benchmark

FP32 (float)

Radeon HD 7490M +28%

0.256 TFLOPS

Radeon HD 6450A

0.2 TFLOPS

Radeon HD 7490M

VS

Radeon HD 6450A

Graphics Card

Jan 2012

Release Date

Apr 2011

London

Generation

All-In-One

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

950 MHz

Memory Clock

533 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

30.40GB/s

Bandwidth

8.528GB/s

Render Config

-

SM Count

-

2

Compute Units

2

160

Shading Units

160

8

TMUs

8

4

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

128 KB

Theoretical Performance

3.200 GPixel/s

Pixel Rate

2.500 GPixel/s

6.400 GTexel/s

Texture Rate

5.000 GTexel/s

-

FP16 (half)

-

256.0 GFLOPS

FP32 (float)

200.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

Seymour

GPU Name

Caicos

Seymour XTX (216-0810005)

GPU Variant

-

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.37 billion

Transistors

0.37 billion

67 mm²

Die Size

67 mm²

Board Design

9W

TDP

25W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

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

-

CUDA

-

5.0

Shader Model

5.0

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