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GeForce 8800 GTS (G80) 320MB vs GeForce 940M

Intro

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

Compare those specs to the GeForce 940M, which uses a 28 nm design. nVidia has set the core speed at 1072 MHz. The DDR3 RAM is set to run at a speed of 1000 MHz on this particular model. It features 384 SPUs along with 24 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce 8800 GTS (G80) 320MB should perform quite a bit faster than the GeForce 940M overall. (explain)

GeForce 8800 GTS (G80) 320MB 63360 MB/sec
GeForce 940M 16000 MB/sec
Difference: 47360 (296%)

Texel Rate

The GeForce 940M is a small bit (more or less 4%) more effective at texture filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce 940M 25728 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 1104 (4%)

Pixel Rate

The GeForce 8800 GTS (G80) 320MB will be a bit (approximately 20%) more effective at FSAA than the GeForce 940M, and also will be capable of handling higher screen resolutions more effectively. (explain)

GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
GeForce 940M 8576 Mpixels/sec
Difference: 1684 (20%)

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) 320MB

Amazon.com

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GeForce 940M

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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 8800 GTS (G80) 320MB GeForce 940M
Manufacturer nVidia nVidia
Year Feb 2007 March 12 2015
Code Name G80 GM108
Memory 320 MB 2048 MB
Core Speed 513 MHz 1072 MHz
Memory Speed 1584 MHz 2000 MHz
Power (Max TDP) 143 watts (Unknown) watts
Bandwidth 63360 MB/sec 16000 MB/sec
Texel Rate 24624 Mtexels/sec 25728 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 8576 Mpixels/sec
Unified Shaders 96 384
Texture Mapping Units 48 24
Render Output Units 20 8
Bus Type GDDR3 DDR3
Bus Width 320-bit 64-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 (measured in MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the 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 amount of pixels that the graphics chip can possibly write to its 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 clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

GeForce 940M

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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