GeForce GTX 465 vs GeForce GTX 880M

Intro

Compare those specs to the GeForce GTX 880M, which has a GPU core clock speed of 954 MHz, and 4096 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce GTX 465		200 Watts
	Difference: 70 Watts (54%)

Memory Bandwidth

The GeForce GTX 880M should theoretically perform quite a bit faster than the GeForce GTX 465 overall. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 25408 (25%)

Texel Rate

The GeForce GTX 880M is quite a bit (about 357%) faster with regards to AF than the GeForce GTX 465. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 95404 (357%)

Pixel Rate

The GeForce GTX 880M is quite a bit (more or less 57%) better at full screen anti-aliasing than the GeForce GTX 465, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 11104 (57%)

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 maximum amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.