Radeon HD 4890 1GB vs Radeon R7 M360

Intro

Compare that to the Radeon R7 M360, which has GPU clock speed of 1125 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 64-bit bus. It also features 384 Stream Processors, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 4890 1GB should be much faster than the Radeon R7 M360 overall. (explain)

Radeon HD 4890 1GB		124800 MB/sec
Radeon R7 M360		16000 MB/sec
	Difference: 108800 (680%)

Texel Rate

The Radeon HD 4890 1GB is quite a bit (about 48%) better at AF than the Radeon R7 M360. (explain)

Radeon HD 4890 1GB		40000 Mtexels/sec
Radeon R7 M360		27000 Mtexels/sec
	Difference: 13000 (48%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 4890 1GB is a better choice, by a large margin. (explain)

Radeon HD 4890 1GB		16000 Mpixels/sec
Radeon R7 M360		9000 Mpixels/sec
	Difference: 7000 (78%)

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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.