GeForce 940M vs GeForce GTX 280

Intro

Compare all of that to the GeForce GTX 280, which features GPU core speed of 602 MHz, and 1024 MB of GDDR3 memory running at 1107 MHz through a 512-bit bus. It also is comprised of 240 Stream Processors, 80 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 280 should be 786% quicker than the GeForce 940M in general, because of its greater data rate. (explain)

GeForce GTX 280		141696 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 125696 (786%)

Texel Rate

The GeForce GTX 280 should be much (about 87%) more effective at texture filtering than the GeForce 940M. (explain)

GeForce GTX 280		48160 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 22432 (87%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 280 is the winner, and very much so. (explain)

GeForce GTX 280		19264 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 10688 (125%)

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 information (in units of MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

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