GeForce GTX 460 (OEM) vs Radeon HD 3650 256MB

Intro

Compare all that to the Radeon HD 3650 256MB, which features core speeds of 725 MHz on the GPU, and 800 MHz on the 256 MB of DDR2 RAM. It features 120(24x5) SPUs along with 8 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 256MB		78 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 72 Watts (92%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 (OEM) is 325% faster than the Radeon HD 3650 256MB overall, because of its greater bandwidth. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 83200 (325%)

Texel Rate

The GeForce GTX 460 (OEM) will be much (more or less 528%) more effective at anisotropic filtering than the Radeon HD 3650 256MB. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 30600 (528%)

Pixel Rate

The GeForce GTX 460 (OEM) should be much (about 617%) more effective at anti-aliasing than the Radeon HD 3650 256MB, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 17900 (617%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high 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 number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. 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 rate also depends on many 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.