GeForce GT 430 (OEM) vs GeForce GTS 250 512MB

Intro

Compare those specs to the GeForce GTS 250 512MB, which has a clock speed of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also makes use of a 256-bit memory bus, and makes use of a 65/55 nm design. It is made up of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
GeForce GTS 250 512MB		145 Watts
	Difference: 85 Watts (142%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 250 512MB is 144% faster than the GeForce GT 430 (OEM) in general, due to its higher bandwidth. (explain)

GeForce GTS 250 512MB		70400 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 41600 (144%)

Texel Rate

The GeForce GTS 250 512MB should be much (about 322%) better at AF than the GeForce GT 430 (OEM). (explain)

GeForce GTS 250 512MB		47232 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 36032 (322%)

Pixel Rate

The GeForce GTS 250 512MB should be quite a bit (approximately 322%) faster with regards to anti-aliasing than the GeForce GT 430 (OEM), and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTS 250 512MB		11808 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 9008 (322%)

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 data (measured in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.