GeForce GTX 1630 vs Radeon HD 3850 X2

Intro

Compare those specifications to the Radeon HD 3850 X2, which features GPU clock speed of 668 MHz, and 512 MB of GDDR3 RAM running at 828 MHz through a 256-bit bus. It also is made up of 320(64x5) Stream Processors, 16 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 3850 X2 is 8% faster than the GeForce GTX 1630 in general, because of its higher bandwidth. (explain)

Radeon HD 3850 X2		105984 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 7680 (8%)

Texel Rate

The GeForce GTX 1630 is a lot (more or less 160%) faster with regards to texture filtering than the Radeon HD 3850 X2. (explain)

GeForce GTX 1630		55680 Mtexels/sec
Radeon HD 3850 X2		21376 Mtexels/sec
	Difference: 34304 (160%)

Pixel Rate

The GeForce GTX 1630 should be quite a bit (approximately 30%) better at FSAA than the Radeon HD 3850 X2, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 1630		27840 Mpixels/sec
Radeon HD 3850 X2		21376 Mpixels/sec
	Difference: 6464 (30%)

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 transported past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher 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 maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 get to the maximum fill rate.