GeForce GT 440 3GB vs Radeon HD 6570 (OEM) 1GB

Intro

Compare those specifications to the Radeon HD 6570 (OEM) 1GB, which has core speeds of 650 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 480 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
GeForce GT 440 3GB		56 Watts
	Difference: 6 Watts (12%)

Memory Bandwidth

As far as performance goes, the GeForce GT 440 3GB should theoretically be a lot superior to the Radeon HD 6570 (OEM) 1GB in general. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 14400 (50%)

Texel Rate

The Radeon HD 6570 (OEM) 1GB will be a bit (about 9%) more effective at texture filtering than the GeForce GT 440 3GB. (explain)

Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 1344 (9%)

Pixel Rate

The GeForce GT 440 3GB should be much (approximately 174%) better at FSAA than the Radeon HD 6570 (OEM) 1GB, and also should be capable of handling higher resolutions more effectively. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.