Radeon R7 250X 2GB vs Radeon R7 260X

Intro

Compare all of that to the Radeon R7 260X, which uses a 28 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 RAM works at a frequency of 1625 MHz on this specific card. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
Radeon R7 260X		115 Watts
	Difference: 20 Watts (21%)

Memory Bandwidth

The Radeon R7 260X should theoretically be quite a bit faster than the Radeon R7 250X 2GB overall. (explain)

Radeon R7 260X		104000 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 32000 (44%)

Texel Rate

The Radeon R7 260X will be a lot (approximately 54%) more effective at texture filtering than the Radeon R7 250X 2GB. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 21600 (54%)

Pixel Rate

The Radeon R7 260X is just a bit (more or less 10%) more effective at anti-aliasing than the Radeon R7 250X 2GB, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R7 260X		17600 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 1600 (10%)

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 data (measured in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, 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 number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.