GeForce GTX 880M vs Geforce GTX 690

Intro

Compare all of that to the Geforce GTX 690, which makes use of a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 RAM works at a frequency of 1502 MHz on this specific model. It features 1536 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 690		13111 points
GeForce GTX 880M		6360 points
	Difference: 6751 (106%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
Geforce GTX 690		300 Watts
	Difference: 170 Watts (131%)

Memory Bandwidth

In theory, the Geforce GTX 690 should be 200% faster than the GeForce GTX 880M in general, due to its greater bandwidth. (explain)

Geforce GTX 690		384512 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 256512 (200%)

Texel Rate

The Geforce GTX 690 should be much (more or less 92%) faster with regards to anisotropic filtering than the GeForce GTX 880M. (explain)

Geforce GTX 690		234240 Mtexels/sec
GeForce GTX 880M		122112 Mtexels/sec
	Difference: 112128 (92%)

Pixel Rate

The Geforce GTX 690 should be quite a bit (more or less 92%) faster with regards to full screen anti-aliasing than the GeForce GTX 880M, and should be able to handle higher resolutions more effectively. (explain)

Geforce GTX 690		58560 Mpixels/sec
GeForce GTX 880M		30528 Mpixels/sec
	Difference: 28032 (92%)

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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.