GeForce GTX 880M vs Geforce GTX 770

Intro

Compare those specifications to the Geforce GTX 770, which has a GPU core clock speed of 1046 MHz, and 2048 MB of GDDR5 memory running at 1753 MHz through a 256-bit bus. It also features 1536 Stream Processors, 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 770		7854 points
GeForce GTX 880M		6360 points
	Difference: 1494 (23%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
Geforce GTX 770		230 Watts
	Difference: 100 Watts (77%)

Memory Bandwidth

In theory, the Geforce GTX 770 is 75% quicker than the GeForce GTX 880M in general, due to its greater data rate. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 96384 (75%)

Texel Rate

The Geforce GTX 770 will be just a bit (more or less 10%) better at texture filtering than the GeForce GTX 880M. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce GTX 880M		122112 Mtexels/sec
	Difference: 11776 (10%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 770 is a better choice, though not by far. (explain)

Geforce GTX 770		33472 Mpixels/sec
GeForce GTX 880M		30528 Mpixels/sec
	Difference: 2944 (10%)

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 largest amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units 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 is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.