Radeon HD 4670 1GB vs Radeon R7 M260

Intro

Compare that to the Radeon R7 M260, which uses a 28 nm design. AMD has set the core speed at 715 MHz. The DDR3 memory works at a frequency of 1000 MHz on this card. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 4670 1GB should in theory be quite a bit faster than the Radeon R7 M260 in general. (explain)

Radeon HD 4670 1GB		35200 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 19200 (120%)

Texel Rate

The Radeon HD 4670 1GB will be quite a bit (about 40%) more effective at texture filtering than the Radeon R7 M260. (explain)

Radeon HD 4670 1GB		24000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 6840 (40%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 4670 1GB is superior to the Radeon R7 M260, but only just. (explain)

Radeon HD 4670 1GB		6000 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 280 (5%)

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 (measured in MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics 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 colour ROPs by the clock 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 is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.