GeForce 9800 GTX vs GeForce GT 450 (OEM)

Intro

Compare those specs to the GeForce GT 450 (OEM), which comes with GPU 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 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

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

In theory, the GeForce GT 450 (OEM) is 36% quicker than the GeForce 9800 GTX in general, because of its greater data rate. (explain)

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

Texel Rate

The GeForce 9800 GTX is quite a bit (more or less 128%) faster with regards to texture filtering 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) is much (approximately 76%) more effective at anti-aliasing than the GeForce 9800 GTX, and also should be able to handle higher screen resolutions better. (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

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling 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 graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 ability to get to the max fill rate.