GeForce GT 320 vs Radeon HD 3650 512MB

Intro

Compare those specs to the Radeon HD 3650 512MB, which features clock speeds of 725 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 memory. It features 120(24x5) SPUs as well as 8 Texture Address Units and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon HD 3650 512MB		78 Watts
	Difference: 35 Watts (81%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 3650 512MB should perform a little bit faster than the GeForce GT 320 in general. (explain)

Radeon HD 3650 512MB		25600 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 320 (1%)

Texel Rate

The GeForce GT 320 should be a lot (more or less 123%) faster with regards to anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce GT 320		12960 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 7160 (123%)

Pixel Rate

The GeForce GT 320 will be much (approximately 49%) faster with regards to AA than the Radeon HD 3650 512MB, and also capable of handling higher screen resolutions while still performing well. (explain)

GeForce GT 320		4320 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 1420 (49%)

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 max amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the 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 clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.