GeForce GT 1030 vs GeForce GTX 650

Intro

Compare that to the GeForce GTX 650, which comes with core speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce GTX 650 should be 63% faster than the GeForce GT 1030 in general, due to its greater bandwidth. (explain)

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

Texel Rate

The GeForce GT 1030 will be a bit (approximately 20%) better at AF 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 should be a little bit (approximately 20%) more effective at AA than the GeForce GTX 650, and will be capable of handling higher resolutions without losing too much performance. (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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better 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 maximum number of pixels that the graphics chip can possibly write to the local memory per 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 - sometimes also referred to as 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 max fill rate.