GeForce GT 440 3GB vs Radeon HD 5570

Intro

Compare all of that to the Radeon HD 5570, which comes with core clock speeds of 650 MHz on the GPU, and 900 MHz on the 512 MB of DDR3 RAM. It features 400(80x5) SPUs as well as 20 Texture Address Units and 8 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GT 440 3GB		56 Watts
	Difference: 13 Watts (30%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 440 3GB should be quite a bit faster than the Radeon HD 5570 in general. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 14400 (50%)

Texel Rate

The GeForce GT 440 3GB will be a little bit (approximately 10%) better at anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 1256 (10%)

Pixel Rate

The GeForce GT 440 3GB should be quite a bit (approximately 174%) more effective at full screen anti-aliasing than the Radeon HD 5570, and also capable of handling higher screen resolutions better. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 9056 (174%)

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 data (measured in MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.