GeForce GTX 295 vs GeForce GTX 980M

Intro

Compare those specs to the GeForce GTX 980M, which features a GPU core clock speed of 1038 MHz, and 4096 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 96 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce GTX 295		289 Watts
	Difference: 189 Watts (189%)

Memory Bandwidth

In theory, the GeForce GTX 295 will be 75% quicker than the GeForce GTX 980M overall, due to its higher data rate. (explain)

GeForce GTX 295		223776 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 95776 (75%)

Texel Rate

The GeForce GTX 980M should be a small bit (about 8%) better at AF than the GeForce GTX 295. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GTX 295		92160 Mtexels/sec
	Difference: 7488 (8%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 980M is a better choice, and very much so. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GTX 295		32256 Mpixels/sec
	Difference: 34176 (106%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB 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 the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.