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GeForce 8800 Ultra vs GeForce GTX 260

Intro

The GeForce 8800 Ultra has 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 all of that to the GeForce GTX 260, which has core speeds of 576 MHz on the GPU, and 999 MHz on the 896 MB of GDDR3 memory. It features 192 SPUs along with 64 Texture Address Units and 28 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 Ultra 171 Watts
GeForce GTX 260 182 Watts
Difference: 11 Watts (6%)

Memory Bandwidth

The GeForce GTX 260 should in theory be a small bit faster than the GeForce 8800 Ultra in general. (explain)

GeForce GTX 260 111888 MB/sec
GeForce 8800 Ultra 103680 MB/sec
Difference: 8208 (8%)

Texel Rate

The GeForce 8800 Ultra is just a bit (approximately 6%) faster with regards to texture filtering than the GeForce GTX 260. (explain)

GeForce 8800 Ultra 39168 Mtexels/sec
GeForce GTX 260 36864 Mtexels/sec
Difference: 2304 (6%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 260 is superior to the GeForce 8800 Ultra, though not by far. (explain)

GeForce GTX 260 16128 Mpixels/sec
GeForce 8800 Ultra 14688 Mpixels/sec
Difference: 1440 (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

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GeForce GTX 260

Amazon.com

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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

Display Specifications

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Model GeForce 8800 Ultra GeForce GTX 260
Manufacturer nVidia nVidia
Year May 2007 June 16, 2008
Code Name G80 G200
Memory 768 MB 896 MB
Core Speed 612 MHz 576 MHz
Memory Speed 2160 MHz 1998 MHz
Power (Max TDP) 171 watts 182 watts
Bandwidth 103680 MB/sec 111888 MB/sec
Texel Rate 39168 Mtexels/sec 36864 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 16128 Mpixels/sec
Unified Shaders 128 192
Texture Mapping Units 64 64
Render Output Units 24 28
Bus Type GDDR3 GDDR3
Bus Width 384-bit 448-bit
Fab Process 90 nm 65 nm
Transistors 681 million 1400 million
Bus PCIe x16 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.1

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

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 8800 Ultra

Amazon.com

Check prices at:

GeForce GTX 260

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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