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GeForce 8800 Ultra vs GeForce GTX 460

Intro

The GeForce 8800 Ultra features a clock speed of 612 MHz and a GDDR3 memory speed of 1080 MHz. It also makes use of a 384-bit memory bus, and makes use of a 90 nm design. It is made up of 128 SPUs, 64 Texture Address Units, and 24 Raster Operation Units.

Compare those specs to the GeForce GTX 460, which features core speeds of 675 MHz on the GPU, and 900 MHz on the 768 MB of GDDR5 memory. It features 336 SPUs as well as 56 TAUs and 24 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 150 Watts
GeForce 8800 Ultra 171 Watts
Difference: 21 Watts (14%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 Ultra will be 20% quicker than the GeForce GTX 460 overall, because of its greater data rate. (explain)

GeForce 8800 Ultra 103680 MB/sec
GeForce GTX 460 86400 MB/sec
Difference: 17280 (20%)

Texel Rate

The GeForce 8800 Ultra should be a little bit (approximately 4%) better at anisotropic filtering than the GeForce GTX 460. (explain)

GeForce 8800 Ultra 39168 Mtexels/sec
GeForce GTX 460 37800 Mtexels/sec
Difference: 1368 (4%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 460 is the winner, though only just barely. (explain)

GeForce GTX 460 16200 Mpixels/sec
GeForce 8800 Ultra 14688 Mpixels/sec
Difference: 1512 (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 8800 Ultra

Amazon.com

Check prices at:

GeForce GTX 460

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 460
Manufacturer nVidia nVidia
Year May 2007 July 2010
Code Name G80 GF104
Memory 768 MB 768 MB
Core Speed 612 MHz 675 MHz
Memory Speed 2160 MHz 3600 MHz
Power (Max TDP) 171 watts 150 watts
Bandwidth 103680 MB/sec 86400 MB/sec
Texel Rate 39168 Mtexels/sec 37800 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 16200 Mpixels/sec
Unified Shaders 128 336
Texture Mapping Units 64 56
Render Output Units 24 24
Bus Type GDDR3 GDDR5
Bus Width 384-bit 192-bit
Fab Process 90 nm 40 nm
Transistors 681 million 1950 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth of the card - 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 460

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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