GeForce GT 1030 vs GeForce GT 315

Intro

Compare those specifications to the GeForce GT 315, which has a core clock frequency of 625 MHz and a DDR3 memory speed of 790 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up of 48 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
GeForce GT 315		52 Watts
	Difference: 22 Watts (73%)

Memory Bandwidth

The GeForce GT 1030 should theoretically be quite a bit faster than the GeForce GT 315 overall. (explain)

GeForce GT 1030		49152 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 23872 (94%)

Texel Rate

The GeForce GT 1030 is quite a bit (approximately 305%) better at AF than the GeForce GT 315. (explain)

GeForce GT 1030		40480 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 30480 (305%)

Pixel Rate

The GeForce GT 1030 should be quite a bit (about 305%) better at anti-aliasing than the GeForce GT 315, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GT 1030		20240 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 15240 (305%)

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 data (measured in megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.