GeForce GT 430 vs GeForce GTX 650

Intro

Compare those specs to the GeForce GTX 650, which comes with a clock frequency of 1058 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is comprised of 384 SPUs, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
GeForce GTX 650		64 Watts
	Difference: 4 Watts (7%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 650 should theoretically be quite a bit better than the GeForce GT 430 in general. (explain)

GeForce GTX 650		80000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 51200 (178%)

Texel Rate

The GeForce GTX 650 is a lot (more or less 202%) faster with regards to AF than the GeForce GT 430. (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 22656 (202%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 is superior to the GeForce GT 430, by a large margin. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 14128 (505%)

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 data (in units of MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.