GeForce GT 1030 vs Radeon HD 4850 X2 1GB

Intro

Compare all of that to the Radeon HD 4850 X2 1GB, which features GPU core speed of 625 MHz, and 1024 MB of GDDR3 memory running at 993 MHz through a 256-bit bus. It also is made up of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 4850 X2 1GB		250 Watts
	Difference: 220 Watts (733%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4850 X2 1GB should theoretically be much better than the GeForce GT 1030 in general. (explain)

Radeon HD 4850 X2 1GB		127104 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 77952 (159%)

Texel Rate

The Radeon HD 4850 X2 1GB is quite a bit (more or less 24%) more effective at AF than the GeForce GT 1030. (explain)

Radeon HD 4850 X2 1GB		50000 Mtexels/sec
GeForce GT 1030		40480 Mtexels/sec
	Difference: 9520 (24%)

Pixel Rate

The GeForce GT 1030 is just a bit (more or less 1%) better at anti-aliasing than the Radeon HD 4850 X2 1GB, and will be able to handle higher resolutions while still performing well. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 4850 X2 1GB		20000 Mpixels/sec
	Difference: 240 (1%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.