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

Intro

Compare those specs to the GeForce GTS 250 512MB, which has a core clock frequency of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also uses a 256-bit bus, and uses a 65/55 nm design. It is made up of 128 SPUs, 64 Texture Address Units, 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

As far as performance goes, the GeForce GTS 250 512MB should in theory be quite a bit better than the GeForce GT 430 (OEM) overall. (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 will be quite a bit (more or less 322%) faster with regards to 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 a lot (about 322%) faster with regards to full screen anti-aliasing than the GeForce GT 430 (OEM), and will be capable of handling higher 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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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 - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.