GeForce GT 430 vs GeForce GTS 250 1GB

Intro

Compare those specifications to the GeForce GTS 250 1GB, which comes with core clock speeds of 738 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR3 memory. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 85 Watts (142%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 250 1GB will be 144% quicker than the GeForce GT 430 in general, due to its greater bandwidth. (explain)

GeForce GTS 250 1GB		70400 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 41600 (144%)

Texel Rate

The GeForce GTS 250 1GB is much (about 322%) faster with regards to AF than the GeForce GT 430. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 36032 (322%)

Pixel Rate

The GeForce GTS 250 1GB should be quite a bit (about 322%) more effective at anti-aliasing than the GeForce GT 430, and capable of handling higher screen resolutions more effectively. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
GeForce GT 430		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 data (in units of MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.