Radeon R7 260X vs Radeon R9 390X 8G

Intro

Compare those specifications to the Radeon R9 390X 8G, which has a clock frequency of 1050 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 512-bit memory bus, and uses a 28 nm design. It is comprised of 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

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 R9 390X 8G		13555 points
Radeon R7 260X		4381 points
	Difference: 9174 (209%)

Ethereum Mining Hash Rate

Radeon R9 390X 8G		32 Mh/s
Radeon R7 260X		14 Mh/s
	Difference: 18 (129%)

Zcash Mining Hash Rate

Radeon R9 390X 8G		330 Sol/s
Radeon R7 260X		95 Sol/s
	Difference: 235 (247%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 160 Watts (139%)

Memory Bandwidth

Theoretically, the Radeon R9 390X 8G should perform much faster than the Radeon R7 260X in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 280000 (269%)

Texel Rate

The Radeon R9 390X 8G will be quite a bit (about 200%) better at AF than the Radeon R7 260X. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon R7 260X		61600 Mtexels/sec
	Difference: 123200 (200%)

Pixel Rate

The Radeon R9 390X 8G is much (approximately 282%) faster with regards to anti-aliasing than the Radeon R7 260X, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 49600 (282%)

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 data (measured in MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one 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 better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs 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 fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.