GeForce GT 1030 vs GeForce GTS 450

Intro

Compare those specifications to the GeForce GTS 450, which has core speeds of 783 MHz on the GPU, and 902 MHz on the 512 MB of GDDR5 RAM. It features 192 SPUs along with 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

As far as performance goes, the GeForce GTS 450 should in theory be a small bit superior to 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 a lot (more or less 62%) more effective at texture 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 a lot (approximately 62%) better at full screen anti-aliasing than the GeForce GTS 450, and also will be able to handle higher screen 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: Bandwidth is the largest amount of information (in units of MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, 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 most pixels the video card 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.