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GeForce 9800 GTX vs GeForce GTX 480

Intro

The GeForce 9800 GTX has a GPU clock speed of 675 MHz, and the 512 MB of GDDR3 memory is set to run at 1100 MHz through a 256-bit bus. It also features 128 Stream Processors, 64 TAUs, and 16 ROPs.

Compare all of that to the GeForce GTX 480, which uses a 40 nm design. nVidia has set the core speed at 700 MHz. The GDDR5 memory runs at a speed of 924 MHz on this particular card. It features 480 SPUs along with 60 Texture Address Units and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX 140 Watts
GeForce GTX 480 250 Watts
Difference: 110 Watts (79%)

Memory Bandwidth

The GeForce GTX 480, in theory, should perform much faster than the GeForce 9800 GTX in general. (explain)

GeForce GTX 480 177408 MB/sec
GeForce 9800 GTX 70400 MB/sec
Difference: 107008 (152%)

Texel Rate

The GeForce 9800 GTX will be a little bit (more or less 3%) faster with regards to AF than the GeForce GTX 480. (explain)

GeForce 9800 GTX 43200 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 1200 (3%)

Pixel Rate

The GeForce GTX 480 should be a lot (approximately 211%) faster with regards to FSAA than the GeForce 9800 GTX, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 480 33600 Mpixels/sec
GeForce 9800 GTX 10800 Mpixels/sec
Difference: 22800 (211%)

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 9800 GTX

Amazon.com

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GeForce GTX 480

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

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Model GeForce 9800 GTX GeForce GTX 480
Manufacturer nVidia nVidia
Year April 2008 March 2010
Code Name G92 GF100
Memory 512 MB 1536 MB
Core Speed 675 MHz 700 MHz
Memory Speed 2200 MHz 3696 MHz
Power (Max TDP) 140 watts 250 watts
Bandwidth 70400 MB/sec 177408 MB/sec
Texel Rate 43200 Mtexels/sec 42000 Mtexels/sec
Pixel Rate 10800 Mpixels/sec 33600 Mpixels/sec
Unified Shaders 128 480
Texture Mapping Units 64 60
Render Output Units 16 48
Bus Type GDDR3 GDDR5
Bus Width 256-bit 384-bit
Fab Process 65 nm 40 nm
Transistors 754 million 3000 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 9800 GTX

Amazon.com

Check prices at:

GeForce GTX 480

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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