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GeForce 9800 GTX vs GeForce GTS 250 512MB

Intro

The GeForce 9800 GTX uses a 65 nm design. nVidia has clocked the core speed at 675 MHz. The GDDR3 memory works at a frequency of 1100 MHz on this card. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the GeForce GTS 250 512MB, which features a core clock frequency of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also uses a 256-bit bus, and makes use of a 65/55 nm design. It is comprised of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX 140 Watts
GeForce GTS 250 512MB 145 Watts
Difference: 5 Watts (4%)

Memory Bandwidth

Both cards have the exact same bandwidth, so theoretically they should have identical performance. (explain)

Texel Rate

The GeForce GTS 250 512MB will be a bit (more or less 9%) faster with regards to AF than the GeForce 9800 GTX. (explain)

GeForce GTS 250 512MB 47232 Mtexels/sec
GeForce 9800 GTX 43200 Mtexels/sec
Difference: 4032 (9%)

Pixel Rate

The GeForce GTS 250 512MB is just a bit (more or less 9%) faster with regards to anti-aliasing than the GeForce 9800 GTX, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTS 250 512MB 11808 Mpixels/sec
GeForce 9800 GTX 10800 Mpixels/sec
Difference: 1008 (9%)

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

Check prices at:

GeForce GTS 250 512MB

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

Display Specifications

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Model GeForce 9800 GTX GeForce GTS 250 512MB
Manufacturer nVidia nVidia
Year April 2008 March 3, 2009
Code Name G92 G92a/b
Memory 512 MB 512 MB
Core Speed 675 MHz 738 MHz
Memory Speed 2200 MHz 2200 MHz
Power (Max TDP) 140 watts 145 watts
Bandwidth 70400 MB/sec 70400 MB/sec
Texel Rate 43200 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 10800 Mpixels/sec 11808 Mpixels/sec
Unified Shaders 128 128
Texture Mapping Units 64 64
Render Output Units 16 16
Bus Type GDDR3 GDDR3
Bus Width 256-bit 256-bit
Fab Process 65 nm 65/55 nm
Transistors 754 million 754 million
Bus PCIe x16 2.0 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 (measured in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the 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 maximum number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few 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

Hide Prices

GeForce 9800 GTX

Amazon.com

Check prices at:

GeForce GTS 250 512MB

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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