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GeForce 8800 Ultra vs GeForce 9500 GT DDR2

Intro

The GeForce 8800 Ultra makes use of a 90 nm design. nVidia has set the core frequency at 612 MHz. The GDDR3 RAM runs at a frequency of 1080 MHz on this specific model. It features 128 SPUs as well as 64 TAUs and 24 Rasterization Operator Units.

Compare all of that to the GeForce 9500 GT DDR2, which has GPU core speed of 550 MHz, and 256 MB of DDR2 memory set to run at 500 MHz through a 128-bit bus. It also is made up of 32 Stream Processors, 16 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2 50 Watts
GeForce 8800 Ultra 171 Watts
Difference: 121 Watts (242%)

Memory Bandwidth

In theory, the GeForce 8800 Ultra should perform quite a bit faster than the GeForce 9500 GT DDR2 overall. (explain)

GeForce 8800 Ultra 103680 MB/sec
GeForce 9500 GT DDR2 16000 MB/sec
Difference: 87680 (548%)

Texel Rate

The GeForce 8800 Ultra is much (about 345%) faster with regards to texture filtering than the GeForce 9500 GT DDR2. (explain)

GeForce 8800 Ultra 39168 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 30368 (345%)

Pixel Rate

The GeForce 8800 Ultra should be quite a bit (approximately 234%) better at full screen anti-aliasing than the GeForce 9500 GT DDR2, and also able to handle higher resolutions without slowing down too much. (explain)

GeForce 8800 Ultra 14688 Mpixels/sec
GeForce 9500 GT DDR2 4400 Mpixels/sec
Difference: 10288 (234%)

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 9500 GT DDR2

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 9500 GT DDR2
Manufacturer nVidia nVidia
Year May 2007 July 2008
Code Name G80 G96a
Memory 768 MB 256 MB
Core Speed 612 MHz 550 MHz
Memory Speed 2160 MHz 1000 MHz
Power (Max TDP) 171 watts 50 watts
Bandwidth 103680 MB/sec 16000 MB/sec
Texel Rate 39168 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 128 32
Texture Mapping Units 64 16
Render Output Units 24 8
Bus Type GDDR3 DDR2
Bus Width 384-bit 128-bit
Fab Process 90 nm 65 nm
Transistors 681 million 314 million
Bus PCIe x16 PCIe x16 2.0, PCI
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 8800 Ultra

Amazon.com

Check prices at:

GeForce 9500 GT DDR2

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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