GeForce GT 1030 vs GeForce GTS 450

Intro

Compare all of that to the GeForce GTS 450, which uses a 40 nm design. nVidia has set the core speed at 783 MHz. The GDDR5 RAM runs at a frequency of 902 MHz on this particular card. It features 192 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
GeForce GTS 450		106 Watts
	Difference: 76 Watts (253%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 should be just a bit faster than the GeForce GT 1030 overall. (explain)

GeForce GTS 450		57728 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 8576 (17%)

Texel Rate

The GeForce GT 1030 should be much (about 62%) better at anisotropic filtering than the GeForce GTS 450. (explain)

GeForce GT 1030		40480 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 15424 (62%)

Pixel Rate

The GeForce GT 1030 should be much (approximately 62%) more effective at AA than the GeForce GTS 450, and should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GT 1030		20240 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 7712 (62%)

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 largest amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.