GeForce 9500 GT 512MB GDDR3 vs Geforce GTX 670

Intro

Compare those specs to the Geforce GTX 670, which comes with GPU core speed of 915 MHz, and 2048 MB of GDDR5 RAM set to run at 1500 MHz through a 256-bit bus. It also is comprised of 1344 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 512MB GDDR3		50 Watts
Geforce GTX 670		170 Watts
	Difference: 120 Watts (240%)

Memory Bandwidth

In theory, the Geforce GTX 670 should be much faster than the GeForce 9500 GT 512MB GDDR3 overall. (explain)

Geforce GTX 670		192000 MB/sec
GeForce 9500 GT 512MB GDDR3		25600 MB/sec
	Difference: 166400 (650%)

Texel Rate

The Geforce GTX 670 should be quite a bit (approximately 1065%) more effective at AF than the GeForce 9500 GT 512MB GDDR3. (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce 9500 GT 512MB GDDR3		8800 Mtexels/sec
	Difference: 93680 (1065%)

Pixel Rate

The Geforce GTX 670 is a lot (about 565%) faster with regards to full screen anti-aliasing than the GeForce 9500 GT 512MB GDDR3, and should be capable of handling higher screen resolutions better. (explain)

Geforce GTX 670		29280 Mpixels/sec
GeForce 9500 GT 512MB GDDR3		4400 Mpixels/sec
	Difference: 24880 (565%)

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 max amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.