Radeon HD 4870 512MB vs Radeon R7 M360

Intro

Compare that to the Radeon R7 M360, which makes use of a 28 nm design. AMD has set the core frequency at 1125 MHz. The DDR3 memory runs at a speed of 1000 MHz on this specific model. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 4870 512MB should perform quite a bit faster than the Radeon R7 M360 overall. (explain)

Radeon HD 4870 512MB		115200 MB/sec
Radeon R7 M360		16000 MB/sec
	Difference: 99200 (620%)

Texel Rate

The Radeon HD 4870 512MB will be a little bit (approximately 11%) more effective at texture filtering than the Radeon R7 M360. (explain)

Radeon HD 4870 512MB		30000 Mtexels/sec
Radeon R7 M360		27000 Mtexels/sec
	Difference: 3000 (11%)

Pixel Rate

The Radeon HD 4870 512MB will be quite a bit (approximately 33%) more effective at AA than the Radeon R7 M360, and should be able to handle higher resolutions better. (explain)

Radeon HD 4870 512MB		12000 Mpixels/sec
Radeon R7 M360		9000 Mpixels/sec
	Difference: 3000 (33%)

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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 potential to reach the maximum fill rate.