GeForce 9800 GTX+ vs Geforce GTX 670

Intro

Compare those specifications to the Geforce GTX 670, which uses a 28 nm design. nVidia has set the core frequency at 915 MHz. The GDDR5 memory runs at a speed of 1500 MHz on this specific card. It features 1344 SPUs as well as 112 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX+		145 Watts
Geforce GTX 670		170 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 670 should in theory be a lot better than the GeForce 9800 GTX+ overall. (explain)

Geforce GTX 670		192000 MB/sec
GeForce 9800 GTX+		70400 MB/sec
	Difference: 121600 (173%)

Texel Rate

The Geforce GTX 670 should be much (approximately 117%) more effective at anisotropic filtering than the GeForce 9800 GTX+. (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce 9800 GTX+		47232 Mtexels/sec
	Difference: 55248 (117%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 670 is the winner, by far. (explain)

Geforce GTX 670		29280 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 17472 (148%)

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 largest amount of data (counted in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 processed per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.