GeForce 9600 GT 512MB vs GeForce GTX 650

Intro

Compare all that to the GeForce GTX 650, which features GPU clock speed of 1058 MHz, and 1024 MB of GDDR5 RAM set to run at 1250 MHz through a 128-bit bus. It also features 384 SPUs, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce 9600 GT 512MB		95 Watts
	Difference: 31 Watts (48%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 should in theory be a lot superior to the GeForce 9600 GT 512MB overall. (explain)

GeForce GTX 650		80000 MB/sec
GeForce 9600 GT 512MB		57600 MB/sec
	Difference: 22400 (39%)

Texel Rate

The GeForce GTX 650 should be quite a bit (about 63%) more effective at anisotropic filtering than the GeForce 9600 GT 512MB. (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce 9600 GT 512MB		20800 Mtexels/sec
	Difference: 13056 (63%)

Pixel Rate

The GeForce GTX 650 should be a lot (approximately 63%) faster with regards to AA than the GeForce 9600 GT 512MB, and should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce 9600 GT 512MB		10400 Mpixels/sec
	Difference: 6528 (63%)

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 (in units of MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, 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 most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core 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 memory bandwidth is, the lower the ability to reach the max fill rate.