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GeForce 9800 GTX vs GeForce GTS 450

Intro

The GeForce 9800 GTX has a clock frequency of 675 MHz and a GDDR3 memory frequency of 1100 MHz. It also features a 256-bit memory bus, and makes use of a 65 nm design. It features 128 SPUs, 64 Texture Address Units, and 16 ROPs.

Compare all that to the GeForce GTS 450, which has a core clock speed of 783 MHz and a GDDR5 memory speed of 902 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It features 192 SPUs, 32 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 106 Watts
GeForce 9800 GTX 140 Watts
Difference: 34 Watts (32%)

Memory Bandwidth

In theory, the GeForce 9800 GTX should perform a lot faster than the GeForce GTS 450 in general. (explain)

GeForce 9800 GTX 70400 MB/sec
GeForce GTS 450 57728 MB/sec
Difference: 12672 (22%)

Texel Rate

The GeForce 9800 GTX should be much (about 72%) faster with regards to AF than the GeForce GTS 450. (explain)

GeForce 9800 GTX 43200 Mtexels/sec
GeForce GTS 450 25056 Mtexels/sec
Difference: 18144 (72%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTS 450 is a better choice, not by a very large margin though. (explain)

GeForce GTS 450 12528 Mpixels/sec
GeForce 9800 GTX 10800 Mpixels/sec
Difference: 1728 (16%)

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 450

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 9800 GTX GeForce GTS 450
Manufacturer nVidia nVidia
Year April 2008 September 2010
Code Name G92 GF106
Memory 512 MB 512 MB
Core Speed 675 MHz 783 MHz
Memory Speed 2200 MHz 3608 MHz
Power (Max TDP) 140 watts 106 watts
Bandwidth 70400 MB/sec 57728 MB/sec
Texel Rate 43200 Mtexels/sec 25056 Mtexels/sec
Pixel Rate 10800 Mpixels/sec 12528 Mpixels/sec
Unified Shaders 128 192
Texture Mapping Units 64 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 1170 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GTX

Amazon.com

Check prices at:

GeForce GTS 450

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.

Comments

One Response to “GeForce 9800 GTX vs GeForce GTS 450”
david says:

hallo und schönen guten morgen liebes nvidia team.
Gibt es eine möglichkeit die grafikkarte Nvidia geforce 9800 gt mit Directx 11 zu übernehmen ?

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