Radeon HD 4850 X2 512MB vs Radeon R7 360

Intro

Compare those specs to the Radeon R7 360, which has GPU clock speed of 1050 MHz, and 2048 MB of GDDR5 memory running at 1625 MHz through a 128-bit bus. It also features 768 SPUs, 48 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 360		100 Watts
Radeon HD 4850 X2 512MB		250 Watts
	Difference: 150 Watts (150%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4850 X2 512MB should theoretically be quite a bit superior to the Radeon R7 360 in general. (explain)

Radeon HD 4850 X2 512MB		127104 MB/sec
Radeon R7 360		104000 MB/sec
	Difference: 23104 (22%)

Texel Rate

The Radeon R7 360 should be just a bit (about 1%) faster with regards to AF than the Radeon HD 4850 X2 512MB. (explain)

Radeon R7 360		50400 Mtexels/sec
Radeon HD 4850 X2 512MB		50000 Mtexels/sec
	Difference: 400 (1%)

Pixel Rate

The Radeon HD 4850 X2 512MB is a small bit (more or less 19%) faster with regards to full screen anti-aliasing than the Radeon R7 360, and will be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 4850 X2 512MB		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: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.