GeForce GTX 460 SE vs Radeon HD 3650 512MB

Intro

Compare all that to the Radeon HD 3650 512MB, which makes use of a 55 nm design. AMD has set the core frequency at 725 MHz. The GDDR3 RAM works at a frequency of 800 MHz on this card. It features 120(24x5) SPUs as well as 8 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 512MB		78 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 72 Watts (92%)

Memory Bandwidth

In theory, the GeForce GTX 460 SE should be 325% faster than the Radeon HD 3650 512MB in general, due to its greater data rate. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 83200 (325%)

Texel Rate

The GeForce GTX 460 SE should be a lot (approximately 438%) faster with regards to anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 25400 (438%)

Pixel Rate

The GeForce GTX 460 SE will be quite a bit (approximately 617%) more effective at full screen anti-aliasing than the Radeon HD 3650 512MB, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 3650 512MB		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: Bandwidth is the maximum 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 its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 can be applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.