GeForce 9800 GTX+ vs Geforce GTX 670

Intro

Compare those specs to the Geforce GTX 670, which uses a 28 nm design. nVidia has set the core frequency at 915 MHz. The GDDR5 memory works at a frequency of 1500 MHz on this particular card. It features 1344 SPUs along with 112 Texture Address Units and 32 Rasterization Operator Units.

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

Performance-wise, the Geforce GTX 670 should theoretically be quite a bit better than the GeForce 9800 GTX+ in general. (explain)

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

Texel Rate

The Geforce GTX 670 will be much (approximately 117%) faster with regards to AF 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 a better choice, 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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's 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 also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.