GeForce GTX 465 vs Radeon HD 3650 512MB

Intro

Compare all of that to the Radeon HD 3650 512MB, which makes use of a 55 nm design. AMD has clocked the core speed at 725 MHz. The GDDR3 memory runs at a speed of 800 MHz on this specific card. It features 120(24x5) SPUs along with 8 Texture Address Units and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 512MB		78 Watts
GeForce GTX 465		200 Watts
	Difference: 122 Watts (156%)

Memory Bandwidth

Theoretically, the GeForce GTX 465 should be much faster than the Radeon HD 3650 512MB in general. (explain)

GeForce GTX 465		102592 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 76992 (301%)

Texel Rate

The GeForce GTX 465 will be a lot (more or less 360%) faster with regards to anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce GTX 465		26708 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 20908 (360%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 465 is superior to the Radeon HD 3650 512MB, by far. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 16524 (570%)

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 data (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's 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 is also dependant on many 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.