GeForce GT 1030 vs Radeon HD 3850 1GB

Intro

Compare those specifications to the Radeon HD 3850 1GB, which comes with a clock speed of 668 MHz and a GDDR3 memory frequency of 828 MHz. It also makes use of a 256-bit memory bus, and uses a 55 nm design. It features 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 3850 1GB		75 Watts
	Difference: 45 Watts (150%)

Memory Bandwidth

As far as performance goes, the Radeon HD 3850 1GB should in theory be just a bit superior to the GeForce GT 1030 in general. (explain)

Radeon HD 3850 1GB		52992 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 3840 (8%)

Texel Rate

The GeForce GT 1030 should be quite a bit (more or less 279%) better at texture filtering than the Radeon HD 3850 1GB. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 3850 1GB		10688 Mtexels/sec
	Difference: 29792 (279%)

Pixel Rate

The GeForce GT 1030 will be much (about 89%) more effective at full screen anti-aliasing than the Radeon HD 3850 1GB, and able to handle higher screen resolutions more effectively. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 3850 1GB		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 largest amount of information (counted in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a 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 sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.