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GeForce 8800 Ultra vs GeForce GTX 650 Ti

Intro

The GeForce 8800 Ultra features a GPU clock speed of 612 MHz, and the 768 MB of GDDR3 RAM is set to run at 1080 MHz through a 384-bit bus. It also features 128 Stream Processors, 64 Texture Address Units, and 24 Raster Operation Units.

Compare that to the GeForce GTX 650 Ti, which makes use of a 28 nm design. nVidia has set the core frequency at 928 MHz. The GDDR5 RAM works at a speed of 1350 MHz on this particular model. It features 768 SPUs along with 64 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 110 Watts
GeForce 8800 Ultra 171 Watts
Difference: 61 Watts (55%)

Memory Bandwidth

Theoretically, the GeForce 8800 Ultra should be a bit faster than the GeForce GTX 650 Ti in general. (explain)

GeForce 8800 Ultra 103680 MB/sec
GeForce GTX 650 Ti 86400 MB/sec
Difference: 17280 (20%)

Texel Rate

The GeForce GTX 650 Ti should be much (approximately 52%) more effective at anisotropic filtering than the GeForce 8800 Ultra. (explain)

GeForce GTX 650 Ti 59392 Mtexels/sec
GeForce 8800 Ultra 39168 Mtexels/sec
Difference: 20224 (52%)

Pixel Rate

The GeForce GTX 650 Ti is just a bit (more or less 1%) better at anti-aliasing than the GeForce 8800 Ultra, and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 650 Ti 14848 Mpixels/sec
GeForce 8800 Ultra 14688 Mpixels/sec
Difference: 160 (1%)

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 Ultra

Amazon.com

Check prices at:

GeForce GTX 650 Ti

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 Ultra GeForce GTX 650 Ti
Manufacturer nVidia nVidia
Year May 2007 October 2012
Code Name G80 GK106
Memory 768 MB 1024 MB
Core Speed 612 MHz 928 MHz
Memory Speed 2160 MHz 5400 MHz
Power (Max TDP) 171 watts 110 watts
Bandwidth 103680 MB/sec 86400 MB/sec
Texel Rate 39168 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 14688 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 (in units of MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce 8800 Ultra

Amazon.com

Check prices at:

GeForce GTX 650 Ti

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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