Radeon R7 260X vs Radeon R9 390X 8G

Intro

Compare that to the Radeon R9 390X 8G, which comes with a clock speed of 1050 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 512-bit memory bus, and makes use of a 28 nm design. It is made up of 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

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

Performance-wise, the Radeon R9 390X 8G should in theory be quite a bit superior to 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 should be quite a bit (about 200%) faster with regards to texture 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 using a high screen resolution is important to you, then the Radeon R9 390X 8G is the winner, by far. (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 largest amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.