GeForce GTX 465 vs GeForce GTX 980M

Intro

Compare those specs to the GeForce GTX 980M, which has core clock speeds of 1038 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 RAM. It features 1536 SPUs along with 96 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce GTX 465		200 Watts
	Difference: 100 Watts (100%)

Memory Bandwidth

Theoretically, the GeForce GTX 980M should perform a lot faster than the GeForce GTX 465 overall. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 25408 (25%)

Texel Rate

The GeForce GTX 980M should be a lot (approximately 273%) faster with regards to texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 72940 (273%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 980M is superior to the GeForce GTX 465, by a large margin. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 47008 (242%)

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 largest amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at 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 card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to 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 get to the maximum fill rate.