Radeon R7 260X vs Radeon R9 390 8G

Intro

Compare that to the Radeon R9 390 8G, which has a core clock frequency of 1000 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 2560 SPUs, 160 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 390 8G		12733 points
Radeon R7 260X		4381 points
	Difference: 8352 (191%)

Ethereum Mining Hash Rate

Radeon R9 390 8G		28 Mh/s
Radeon R7 260X		14 Mh/s
	Difference: 14 (100%)

Zcash Mining Hash Rate

Radeon R9 390 8G		326 Sol/s
Radeon R7 260X		95 Sol/s
	Difference: 231 (243%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the Radeon R9 390 8G will be 269% faster than the Radeon R7 260X overall, due to its greater data rate. (explain)

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

Texel Rate

The Radeon R9 390 8G should be a lot (about 160%) faster with regards to texture filtering than the Radeon R7 260X. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
Radeon R7 260X		61600 Mtexels/sec
	Difference: 98400 (160%)

Pixel Rate

The Radeon R9 390 8G is quite a bit (approximately 264%) faster with regards to full screen anti-aliasing than the Radeon R7 260X, and should be able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 46400 (264%)

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 (in units of MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.