GeForce GT 1030 vs Radeon HD 4770

Intro

Compare that to the Radeon HD 4770, which uses a 40 nm design. AMD has set the core frequency at 750 MHz. The GDDR5 RAM works at a frequency of 800 MHz on this specific card. It features 640(128x5) SPUs as well as 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
Radeon HD 4770		80 Watts
	Difference: 50 Watts (167%)

Memory Bandwidth

The Radeon HD 4770, in theory, should be just a bit faster than the GeForce GT 1030 overall. (explain)

Radeon HD 4770		51200 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 2048 (4%)

Texel Rate

The GeForce GT 1030 should be a lot (about 69%) better at texture filtering than the Radeon HD 4770. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 4770		24000 Mtexels/sec
	Difference: 16480 (69%)

Pixel Rate

The GeForce GT 1030 will be much (about 69%) more effective at full screen anti-aliasing than the Radeon HD 4770, and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 4770		12000 Mpixels/sec
	Difference: 8240 (69%)

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 MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, 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 the video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.