GeForce GTX 460 vs Radeon HD 3650

Intro

Compare that to the Radeon HD 3650, which features a clock frequency of 725 MHz and a GDDR4 memory speed of 800 MHz. It also uses a 128-bit bus, and uses a 55 nm design. It is made up of 120(24x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The GeForce GTX 460, in theory, should be much faster than the Radeon HD 3650 overall. (explain)

GeForce GTX 460		86400 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 60800 (238%)

Texel Rate

The GeForce GTX 460 will be quite a bit (about 552%) better at AF than the Radeon HD 3650. (explain)

GeForce GTX 460		37800 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 32000 (552%)

Pixel Rate

The GeForce GTX 460 will be a lot (approximately 459%) better at AA than the Radeon HD 3650, and also capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 460		16200 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 13300 (459%)

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 (measured in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.