GeForce GTX 260 Core 216 vs GeForce GTX 965M

Intro

Compare all that to the GeForce GTX 965M, which has a GPU core clock speed of 944 MHz, and 2048 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is made up of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 142 Watts (237%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 Core 216 should in theory be a lot superior to the GeForce GTX 965M overall. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 47888 (75%)

Texel Rate

The GeForce GTX 965M will be a lot (about 46%) better at AF than the GeForce GTX 260 Core 216. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 18944 (46%)

Pixel Rate

The GeForce GTX 965M is a lot (approximately 87%) more effective at FSAA than the GeForce GTX 260 Core 216, and should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 14080 (87%)

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 max amount of data (measured in megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.