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GeForce 9800 GTX vs GeForce GT 450 (OEM)

Intro

The GeForce 9800 GTX has a GPU core clock speed of 675 MHz, and the 512 MB of GDDR3 RAM is set to run at 1100 MHz through a 256-bit bus. It also is comprised of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Compare those specs to the GeForce GT 450 (OEM), which comes with a GPU core clock speed of 790 MHz, and 1536 MB of GDDR5 RAM running at 1000 MHz through a 192-bit bus. It also is made up of 144 Stream Processors, 24 TAUs, and 24 Raster Operation Units.

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 much faster than the GeForce 9800 GTX in general. (explain)

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

Texel Rate

The GeForce 9800 GTX will be quite a bit (more or less 128%) better at 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

If running with high levels of AA is important to you, then the GeForce GT 450 (OEM) is a better choice, by a large margin. (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

Display 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 maximum amount of information (in units of MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the 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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