GeForce GT 440 3GB vs Radeon HD 5570

Intro

Compare all that to the Radeon HD 5570, which features a core clock frequency of 650 MHz and a DDR3 memory speed of 900 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

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

Performance-wise, the GeForce GT 440 3GB should theoretically be a lot superior to 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 should be just a bit (approximately 10%) faster with regards to texture 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

If using a high resolution is important to you, then the GeForce GT 440 3GB is superior to the Radeon HD 5570, by a large margin. (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 largest amount of information (counted in MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics 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 maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.