Radeon HD 4850 X2 1GB vs Radeon R7 360

Intro

Compare those specifications to the Radeon R7 360, which uses a 28 nm design. AMD has set the core speed at 1050 MHz. The GDDR5 memory runs at a speed of 1625 MHz on this particular model. It features 768 SPUs along with 48 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 360		100 Watts
Radeon HD 4850 X2 1GB		250 Watts
	Difference: 150 Watts (150%)

Memory Bandwidth

In theory, the Radeon HD 4850 X2 1GB should be 22% faster than the Radeon R7 360 overall, because of its higher bandwidth. (explain)

Radeon HD 4850 X2 1GB		127104 MB/sec
Radeon R7 360		104000 MB/sec
	Difference: 23104 (22%)

Texel Rate

The Radeon R7 360 should be a little bit (approximately 1%) faster with regards to anisotropic filtering than the Radeon HD 4850 X2 1GB. (explain)

Radeon R7 360		50400 Mtexels/sec
Radeon HD 4850 X2 1GB		50000 Mtexels/sec
	Difference: 400 (1%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 4850 X2 1GB is superior to the Radeon R7 360, though not by far. (explain)

Radeon HD 4850 X2 1GB		20000 Mpixels/sec
Radeon R7 360		16800 Mpixels/sec
	Difference: 3200 (19%)

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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.