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GeForce GTX 880M vs Geforce GTX 770

Intro

The GeForce GTX 880M makes use of a 28 nm design. nVidia has set the core speed at 954 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this particular card. It features 1536 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Geforce GTX 770, which has GPU clock speed of 1046 MHz, and 2048 MB of GDDR5 RAM set to run at 1753 MHz through a 256-bit bus. It also is made up of 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

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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

Theoretically, the Geforce GTX 770 should be a lot faster than the GeForce GTX 880M overall. (explain)

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

Texel Rate

The Geforce GTX 770 should be a bit (approximately 10%) faster with regards to AF than the GeForce GTX 880M. (explain)

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

Pixel Rate

The Geforce GTX 770 is a small bit (more or less 10%) faster with regards to FSAA than the GeForce GTX 880M, and also should be capable of handling higher resolutions without slowing down too much. (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

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GeForce GTX 880M

Amazon.com

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Geforce GTX 770

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 880M Geforce GTX 770
Manufacturer nVidia nVidia
Year March 12 2014 May 2013
Code Name GK104 GK104
Memory 4096 MB 2048 MB
Core Speed 954 MHz 1046 MHz
Memory Speed 4000 MHz 7012 MHz
Power (Max TDP) 130 watts 230 watts
Bandwidth 128000 MB/sec 224384 MB/sec
Texel Rate 122112 Mtexels/sec 133888 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 33472 Mpixels/sec
Unified Shaders 1536 1536
Texture Mapping Units 128 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.0
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 880M

Amazon.com

Check prices at:

Geforce GTX 770

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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