GeForce GTX 465 vs GeForce GTX 860M

Intro

Compare that to the GeForce GTX 860M, which makes use of a 28 nm design. nVidia has clocked the core speed at 797 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this specific card. It features 1152 SPUs as well as 96 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GTX 465		200 Watts
	Difference: 155 Watts (344%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 465 is 60% quicker than the GeForce GTX 860M in general, because of its higher data rate. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 38592 (60%)

Texel Rate

The GeForce GTX 860M should be much (about 186%) more effective at texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 49804 (186%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 465 is superior to the GeForce GTX 860M, by far. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 6672 (52%)

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 data (measured in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could 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 Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.