Radeon HD 5570 vs Radeon HD 6450 (OEM)

Intro

Compare all that to the Radeon HD 6450 (OEM), which uses a 40 nm design. AMD has clocked the core frequency at 625 MHz. The GDDR3 RAM works at a frequency of 800 MHz on this specific card. It features 160 SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon HD 5570		43 Watts
	Difference: 12 Watts (39%)

Memory Bandwidth

Theoretically, the Radeon HD 5570 should be quite a bit faster than the Radeon HD 6450 (OEM) in general. (explain)

Radeon HD 5570		28800 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 16000 (125%)

Texel Rate

The Radeon HD 5570 will be quite a bit (more or less 160%) better at AF than the Radeon HD 6450 (OEM). (explain)

Radeon HD 5570		13000 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 8000 (160%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 5570 is superior to the Radeon HD 6450 (OEM), and very much so. (explain)

Radeon HD 5570		5200 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 2700 (108%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.