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GeForce 8800 GTX vs GeForce GTX 650 Ti 2GB

Intro

The GeForce 8800 GTX makes use of a 90 nm design. nVidia has clocked the core frequency at 575 MHz. The GDDR3 memory is set to run at a speed of 900 MHz on this card. It features 128 SPUs as well as 64 Texture Address Units and 24 Rasterization Operator Units.

Compare all of that to the GeForce GTX 650 Ti 2GB, which makes use of a 28 nm design. nVidia has set the core frequency at 928 MHz. The GDDR5 RAM runs at a frequency of 1350 MHz on this model. It features 768 SPUs as well as 64 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB 110 Watts
GeForce 8800 GTX 155 Watts
Difference: 45 Watts (41%)

Memory Bandwidth

Both cards have the exact same memory bandwidth, so in theory they should have the same performance. (explain)

Texel Rate

The GeForce GTX 650 Ti 2GB should be quite a bit (more or less 61%) more effective at anisotropic filtering than the GeForce 8800 GTX. (explain)

GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
GeForce 8800 GTX 36800 Mtexels/sec
Difference: 22592 (61%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 650 Ti 2GB is the winner, but it probably won't make a huge difference. (explain)

GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
GeForce 8800 GTX 13800 Mpixels/sec
Difference: 1048 (8%)

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 GTX

Amazon.com

GeForce GTX 650 Ti 2GB

Amazon.com

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 GTX GeForce GTX 650 Ti 2GB
Manufacturer nVidia nVidia
Year Nov 2006 October 2012
Code Name G80 GK106
Memory 768 MB 2048 MB
Core Speed 575 MHz 928 MHz
Memory Speed 1800 MHz 5400 MHz
Power (Max TDP) 155 watts 110 watts
Bandwidth 86400 MB/sec 86400 MB/sec
Texel Rate 36800 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 128 768
Texture Mapping Units 64 64
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 384-bit 128-bit
Fab Process 90 nm 28 nm
Transistors 681 million 2540 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.3

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

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units of the card 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 in one 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. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - 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 GTX

Amazon.com

GeForce GTX 650 Ti 2GB

Amazon.com

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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