GeForce GT 240 GDDR5 1GB vs Radeon HD 3650 512MB

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
Radeon HD 3650 512MB		78 Watts
	Difference: 8 Watts (11%)

Memory Bandwidth

The GeForce GT 240 GDDR5 1GB should theoretically be quite a bit faster than the Radeon HD 3650 512MB overall. (explain)

GeForce GT 240 GDDR5 1GB		54400 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 28800 (113%)

Texel Rate

The GeForce GT 240 GDDR5 1GB should be a lot (approximately 203%) faster with regards to anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 11800 (203%)

Pixel Rate

The GeForce GT 240 GDDR5 1GB is a lot (more or less 52%) better at AA than the Radeon HD 3650 512MB, and able to handle higher resolutions more effectively. (explain)

GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 1500 (52%)

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 information (in units of MB per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.