GeForce 9600 GT 512MB vs GeForce GT 440 1.5GB

Intro

Compare all that to the GeForce GT 440 1.5GB, which features clock speeds of 594 MHz on the GPU, and 900 MHz on the 1536 MB of GDDR3 memory. It features 144 SPUs as well as 24 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce 9600 GT 512MB		95 Watts
	Difference: 39 Watts (70%)

Memory Bandwidth

Performance-wise, the GeForce 9600 GT 512MB should theoretically be much better than the GeForce GT 440 1.5GB overall. (explain)

GeForce 9600 GT 512MB		57600 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 14400 (33%)

Texel Rate

The GeForce 9600 GT 512MB is quite a bit (approximately 46%) more effective at AF than the GeForce GT 440 1.5GB. (explain)

GeForce 9600 GT 512MB		20800 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 6544 (46%)

Pixel Rate

The GeForce GT 440 1.5GB should be quite a bit (about 37%) better at AA than the GeForce 9600 GT 512MB, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
GeForce 9600 GT 512MB		10400 Mpixels/sec
	Difference: 3856 (37%)

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 data (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number 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 output 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 max fill rate.