GeForce GTX 260 Core 216 vs GeForce GTX 465

Intro

Compare that to the GeForce GTX 465, which features GPU clock speed of 607 MHz, and 1024 MB of GDDR5 memory set to run at 802 MHz through a 256-bit bus. It also features 352 Stream Processors, 44 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465		200 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 2 Watts (1%)

Memory Bandwidth

Performance-wise, the GeForce GTX 260 Core 216 should theoretically be just a bit superior to the GeForce GTX 465 overall. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 9296 (9%)

Texel Rate

The GeForce GTX 260 Core 216 should be much (about 55%) better at anisotropic filtering than the GeForce GTX 465. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 14764 (55%)

Pixel Rate

The GeForce GTX 465 is a bit (approximately 20%) better at anti-aliasing than the GeForce GTX 260 Core 216, and also should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 3296 (20%)

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 max amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.