GeForce GT 430 vs GeForce GTX 650

Intro

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

Display Graphs

Hide Graphs

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

Performance-wise, the GeForce GTX 650 should theoretically be a lot 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 (approximately 202%) better at texture filtering 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 high levels of AA is important to you, then the GeForce GTX 650 is superior to the GeForce GT 430, by far. (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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.