Radeon R7 260X vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which uses a 28 nm design. AMD has clocked the core frequency at 1050 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this particular card. It features 2816 SPUs as well as 176 TAUs and 64 Rasterization Operator 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 be a lot 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 is a lot (more or less 200%) faster with regards to anisotropic filtering than the Radeon R7 260X. (explain)

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

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 390X 8G is a better choice, by a large margin. (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 maximum amount of information (counted in MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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