ATI Radeon HD 5830 vs AMD Radeon HD 6450

VS

ATI Radeon HD 5830

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5830 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5830 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 25.60GB/s)

960 additional rendering cores

AMD Radeon HD 6450 's Advantages

Released 1 years and 2 months late

Lower TDP (18W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 5830 +796%

1.792 TFLOPS

Radeon HD 6450

0.2 TFLOPS

Radeon HD 5830

VS

Radeon HD 6450

Graphics Card

Feb 2010

Release Date

Apr 2011

Evergreen

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

128.0GB/s

Bandwidth

25.60GB/s

Render Config

14

Compute Units

2

-

1120

Shading Units

160

56

TMUs

8

16

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

2.500 GPixel/s

44.80 GTexel/s

Texture Rate

5.000 GTexel/s

-

1.792 TFLOPS

FP32 (float)

200.0 GFLOPS

358.4 GFLOPS

FP64 (double)

-

Board Design

175W

TDP

18W

450 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

Cypress

GPU Name

Caicos

Cypress LE (215-0735047)

GPU Variant

Caicos PRO

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.154 billion

Transistors

0.37 billion

334 mm²

Die Size

67 mm²

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

-

5.0

Shader Model

5.0

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