Radeon HD 4870 2GB vs Radeon R7 M260

Intro

Compare all of that to the Radeon R7 M260, which features clock speeds of 715 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 4870 2GB should perform a lot faster than the Radeon R7 M260 in general. (explain)

Radeon HD 4870 2GB		115200 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 99200 (620%)

Texel Rate

The Radeon HD 4870 2GB should be a lot (approximately 75%) more effective at texture filtering than the Radeon R7 M260. (explain)

Radeon HD 4870 2GB		30000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 12840 (75%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 4870 2GB is a better choice, by far. (explain)

Radeon HD 4870 2GB		12000 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 6280 (110%)

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 largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 can be processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.