GeForce 9800 GT 1GB vs Geforce GTX 670

Intro

Compare those specifications to the Geforce GTX 670, which features GPU clock speed of 915 MHz, and 2048 MB of GDDR5 memory running at 1500 MHz through a 256-bit bus. It also features 1344 Stream Processors, 112 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB		105 Watts
Geforce GTX 670		170 Watts
	Difference: 65 Watts (62%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 670 should be a lot faster than the GeForce 9800 GT 1GB in general. (explain)

Geforce GTX 670		192000 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 134400 (233%)

Texel Rate

The Geforce GTX 670 is a lot (more or less 205%) faster with regards to texture filtering than the GeForce 9800 GT 1GB. (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce 9800 GT 1GB		33600 Mtexels/sec
	Difference: 68880 (205%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 670 is the winner, and very much so. (explain)

Geforce GTX 670		29280 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 19680 (205%)

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 (in units of MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, 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 is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.