Radeon HD 4870 1GB vs Radeon R7 M260

Intro

Compare all of that to the Radeon R7 M260, which comes with a clock speed of 715 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 64-bit bus, and makes use of a 28 nm design. It features 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 4870 1GB should theoretically be quite a bit faster than the Radeon R7 M260 overall. (explain)

Radeon HD 4870 1GB		115200 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 99200 (620%)

Texel Rate

The Radeon HD 4870 1GB is a lot (about 75%) faster with regards to AF than the Radeon R7 M260. (explain)

Radeon HD 4870 1GB		30000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 12840 (75%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 4870 1GB is a better choice, by a large margin. (explain)

Radeon HD 4870 1GB		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: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher 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 most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.