Radeon HD 7790 vs Radeon R7 M260

Intro

Compare those specs to the Radeon R7 M260, which has a GPU core clock speed of 715 MHz, and 2048 MB of DDR3 RAM set to run at 1000 MHz through a 64-bit bus. It also is comprised of 384 Stream Processors, 24 Texture Address Units, and 8 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7790		4330 points
Radeon R7 M260		1120 points
	Difference: 3210 (287%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 7790 is 500% faster than the Radeon R7 M260 in general, due to its greater data rate. (explain)

Radeon HD 7790		96000 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 80000 (500%)

Texel Rate

The Radeon HD 7790 should be quite a bit (about 226%) better at texture filtering than the Radeon R7 M260. (explain)

Radeon HD 7790		56000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 38840 (226%)

Pixel Rate

The Radeon HD 7790 should be much (about 180%) faster with regards to FSAA than the Radeon R7 M260, and will be capable of handling higher screen resolutions better. (explain)

Radeon HD 7790		16000 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 10280 (180%)

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 (measured in MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.