Radeon R7 M260 vs Radeon R9 M395X

Intro

Compare all of that to the Radeon R9 M395X, which has a core clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M395X should perform much faster than the Radeon R7 M260 overall. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 144000 (900%)

Texel Rate

The Radeon R9 M395X is a lot (approximately 439%) better at anisotropic filtering than the Radeon R7 M260. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 75384 (439%)

Pixel Rate

The Radeon R9 M395X will be quite a bit (about 304%) better at AA than the Radeon R7 M260, and capable of handling higher screen resolutions better. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 17416 (304%)

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 transported over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.