GeForce GT 1030 vs Radeon HD 3690/3830

Intro

Compare those specifications to the Radeon HD 3690/3830, which comes with a clock speed of 668 MHz and a GDDR3 memory speed of 828 MHz. It also makes use of a 128-bit bus, and makes use of a 55 nm design. It is made up of 320(64x5) SPUs, 16 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 3690/3830		75 Watts
	Difference: 45 Watts (150%)

Memory Bandwidth

The GeForce GT 1030, in theory, should perform quite a bit faster than the Radeon HD 3690/3830 in general. (explain)

GeForce GT 1030		49152 MB/sec
Radeon HD 3690/3830		26496 MB/sec
	Difference: 22656 (86%)

Texel Rate

The GeForce GT 1030 is quite a bit (approximately 279%) more effective at anisotropic filtering than the Radeon HD 3690/3830. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 3690/3830		10688 Mtexels/sec
	Difference: 29792 (279%)

Pixel Rate

The GeForce GT 1030 will be quite a bit (more or less 89%) more effective at anti-aliasing than the Radeon HD 3690/3830, and also capable of handling higher resolutions while still performing well. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 3690/3830		10688 Mpixels/sec
	Difference: 9552 (89%)

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 max amount of information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.