GeForce GTX 285 2GB vs GeForce GTX 965M

Intro

Compare those specifications to the GeForce GTX 965M, which uses a 28 nm design. nVidia has set the core speed at 944 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this card. It features 1024 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 144 Watts (240%)

Memory Bandwidth

Performance-wise, the GeForce GTX 285 2GB should theoretically be a lot superior to the GeForce GTX 965M in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 94976 (148%)

Texel Rate

The GeForce GTX 965M will be a bit (about 17%) more effective at anisotropic filtering than the GeForce GTX 285 2GB. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTX 285 2GB		51840 Mtexels/sec
	Difference: 8576 (17%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 965M is a better choice, by far. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 9472 (46%)

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 (counted in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.