Radeon HD 7870 XT vs Radeon R7 260X

Intro

Compare all of that to the Radeon R7 260X, which comes with GPU core speed of 1100 MHz, and 2048 MB of GDDR5 RAM running at 1625 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 Texture Address Units, and 16 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 7870 XT		6390 points
Radeon R7 260X		4381 points
	Difference: 2009 (46%)

Ethereum Mining Hash Rate

Radeon HD 7870 XT		15 Mh/s
Radeon R7 260X		14 Mh/s
	Difference: 1 (7%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 70 Watts (61%)

Memory Bandwidth

The Radeon HD 7870 XT should theoretically perform much faster than the Radeon R7 260X overall. (explain)

Radeon HD 7870 XT		192000 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 88000 (85%)

Texel Rate

The Radeon HD 7870 XT will be a lot (approximately 44%) faster with regards to anisotropic filtering than the Radeon R7 260X. (explain)

Radeon HD 7870 XT		88800 Mtexels/sec
Radeon R7 260X		61600 Mtexels/sec
	Difference: 27200 (44%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 7870 XT is superior to the Radeon R7 260X, and very much so. (explain)

Radeon HD 7870 XT		29600 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 12000 (68%)

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 largest amount of information (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video 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 maximum number of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.