GeForce GT 1030 vs GeForce GTX 650

Intro

Compare that to the GeForce GTX 650, which uses a 28 nm design. nVidia has clocked the core speed at 1058 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this specific card. It features 384 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
GeForce GTX 650		64 Watts
	Difference: 34 Watts (113%)

Memory Bandwidth

The GeForce GTX 650 should in theory perform quite a bit faster than the GeForce GT 1030 overall. (explain)

GeForce GTX 650		80000 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 30848 (63%)

Texel Rate

The GeForce GT 1030 should be a little bit (more or less 20%) more effective at texture filtering than the GeForce GTX 650. (explain)

GeForce GT 1030		40480 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 6624 (20%)

Pixel Rate

The GeForce GT 1030 will be a bit (more or less 20%) better at FSAA than the GeForce GTX 650, and also capable of handling higher screen resolutions better. (explain)

GeForce GT 1030		20240 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 3312 (20%)

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 (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses 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 is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics 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 most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.