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GeForce 8800 GTS (G80) 640MB vs GeForce GTX 860M

Intro

The GeForce 8800 GTS (G80) 640MB has a clock speed of 513 MHz and a GDDR3 memory frequency of 792 MHz. It also features a 320-bit bus, and makes use of a 90 nm design. It is comprised of 96 SPUs, 48 TAUs, and 20 ROPs.

Compare those specifications to the GeForce GTX 860M, which comes with GPU clock speed of 797 MHz, and 4096 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is made up of 1152 Stream Processors, 96 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M 45 Watts
GeForce 8800 GTS (G80) 640MB 143 Watts
Difference: 98 Watts (218%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 860M should in theory be just a bit superior to the GeForce 8800 GTS (G80) 640MB in general. (explain)

GeForce GTX 860M 64000 MB/sec
GeForce 8800 GTS (G80) 640MB 63360 MB/sec
Difference: 640 (1%)

Texel Rate

The GeForce GTX 860M will be much (about 211%) more effective at AF than the GeForce 8800 GTS (G80) 640MB. (explain)

GeForce GTX 860M 76512 Mtexels/sec
GeForce 8800 GTS (G80) 640MB 24624 Mtexels/sec
Difference: 51888 (211%)

Pixel Rate

The GeForce GTX 860M should be much (approximately 24%) better at FSAA than the GeForce 8800 GTS (G80) 640MB, and should be able to handle higher resolutions better. (explain)

GeForce GTX 860M 12752 Mpixels/sec
GeForce 8800 GTS (G80) 640MB 10260 Mpixels/sec
Difference: 2492 (24%)

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 8800 GTS (G80) 640MB

Amazon.com

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GeForce GTX 860M

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.

Specifications

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Model GeForce 8800 GTS (G80) 640MB GeForce GTX 860M
Manufacturer nVidia nVidia
Year Nov 2006 (640) March 12 2014
Code Name G80 GM107
Memory 640 MB 4096 MB
Core Speed 513 MHz 797 MHz
Memory Speed 1584 MHz 4000 MHz
Power (Max TDP) 143 watts 45 watts
Bandwidth 63360 MB/sec 64000 MB/sec
Texel Rate 24624 Mtexels/sec 76512 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 12752 Mpixels/sec
Unified Shaders 96 1152
Texture Mapping Units 48 96
Render Output Units 20 16
Bus Type GDDR3 GDDR5
Bus Width 320-bit 128-bit
Fab Process 90 nm 28 nm
Transistors 681 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of 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.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 640MB

Amazon.com

Check prices at:

GeForce GTX 860M

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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