GeForce GTX 460 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 RAM running at 802 MHz through a 256-bit bus. It also features 352 Stream Processors, 44 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460		150 Watts
GeForce GTX 465		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

The GeForce GTX 465 should theoretically perform just a bit faster than the GeForce GTX 460 overall. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTX 460		86400 MB/sec
	Difference: 16192 (19%)

Texel Rate

The GeForce GTX 460 will be a lot (more or less 42%) more effective at AF than the GeForce GTX 465. (explain)

GeForce GTX 460		37800 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 11092 (42%)

Pixel Rate

The GeForce GTX 465 should be just a bit (about 20%) more effective at anti-aliasing than the GeForce GTX 460, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTX 460		16200 Mpixels/sec
	Difference: 3224 (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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.