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GeForce 9800 GTX vs GeForce GT 450 (OEM)

Intro

The GeForce 9800 GTX makes use of a 65 nm design. nVidia has clocked the core speed at 675 MHz. The GDDR3 memory is set to run at a frequency of 1100 MHz on this specific model. It features 128 SPUs as well as 64 Texture Address Units and 16 ROPs.

Compare that to the GeForce GT 450 (OEM), which uses a 40 nm design. nVidia has set the core speed at 790 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this card. It features 144 SPUs along with 24 TAUs and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The GeForce GT 450 (OEM) should theoretically perform a lot faster than the GeForce 9800 GTX overall. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
GeForce 9800 GTX 70400 MB/sec
Difference: 25600 (36%)

Texel Rate

The GeForce 9800 GTX should be much (about 128%) faster with regards to AF than the GeForce GT 450 (OEM). (explain)

GeForce 9800 GTX 43200 Mtexels/sec
GeForce GT 450 (OEM) 18960 Mtexels/sec
Difference: 24240 (128%)

Pixel Rate

The GeForce GT 450 (OEM) will be quite a bit (approximately 76%) more effective at FSAA than the GeForce 9800 GTX, and able to handle higher screen resolutions while still performing well. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
GeForce 9800 GTX 10800 Mpixels/sec
Difference: 8160 (76%)

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 GT 450 (OEM)

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 GT 450 (OEM)
Manufacturer nVidia nVidia
Year April 2008 October 2010
Code Name G92 GF106
Memory 512 MB 1536 MB
Core Speed 675 MHz 790 MHz
Memory Speed 2200 MHz 4000 MHz
Power (Max TDP) 140 watts 106 watts
Bandwidth 70400 MB/sec 96000 MB/sec
Texel Rate 43200 Mtexels/sec 18960 Mtexels/sec
Pixel Rate 10800 Mpixels/sec 18960 Mpixels/sec
Unified Shaders 128 144
Texture Mapping Units 64 24
Render Output Units 16 24
Bus Type GDDR3 GDDR5
Bus Width 256-bit 192-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: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per 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 higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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

Display Prices

Hide Prices

GeForce 9800 GTX

Amazon.com

Check prices at:

GeForce GT 450 (OEM)

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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