GeForce GT 130 vs GeForce GTS 450

Intro

Compare all that to the GeForce GTS 450, which comes with clock speeds of 783 MHz on the GPU, and 902 MHz on the 512 MB of GDDR5 RAM. It features 192 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
GeForce GTS 450		106 Watts
	Difference: 31 Watts (41%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 should be 381% faster than the GeForce GT 130 in general, due to its greater bandwidth. (explain)

GeForce GTS 450		57728 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 45728 (381%)

Texel Rate

The GeForce GTS 450 is a lot (approximately 109%) better at texture filtering than the GeForce GT 130. (explain)

GeForce GTS 450		25056 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 13056 (109%)

Pixel Rate

The GeForce GTS 450 should be much (about 57%) better at anti-aliasing than the GeForce GT 130, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTS 450		12528 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 4528 (57%)

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 maximum amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.