The GTX 970 has much more to offer of course, depending on the game, and there's a night and day difference in terms of efficiency.Download Now SAPPHIRE RADEON R9 390 NITRO 8GB DRIVER However, that translates to a mere five to seven per cent boost over the factory OC clocks overall. That's a relatively small boost, but it is supplemented by a meaty 600MHz boost to the 8GB of onboard GDDR5. We were finally stable at 1100MHz - (100MHz over reference, 50MHz over the factory overclock). Temperatures were nightmarish too - if we're hitting 85 degrees Celsius with the DirectCU 3 cooler in an open air test-bed, we're going to have problems. In combination with our 4.6GHz CPU OC, pushing clocks to 1150MHz with the R9 390 caused the system to hit 560W in overall power consumption (!), and we had real trouble getting any kind of stability with the card, requiring us to drop clocks in increments to see how far it could go without crashing. It's a similar state of affairs here, particularly when Asus has already applied a 50MHz factory overclock.

In our Radeon R9 390X review, we shied away from overclocking owing to the extreme levels of power consumption and heat generated when you really pushed the envelope. I think one 390 should be pair at 7870 crossfire or better, but like i see is only energy drain card. If this is the real situation of last AMD card i will send back for a 970. even with the use of GPU unstable and almost always lower than the 99%, increasing the resolution up to 4k with VSR fps remain the same and the energy consumption increases to almost 400W! The game in question is TESO and tried it with a 970 too, I did screen at the same point with all three video cards to have a benchmark of performance, the 7870 achieves 55fps (230W), with 970 83fps (250w) with r9 390 50fps consuming 300W !. I bought a few days ago a Nitro Sapphire AMD R9 390, after uninstalling with DDU and after re-installed the latest beta drivers have tried the games until a few days before I played with a HD 7870, I noticed that in some games the card does not express the full potential, as you will see in the video that I recorded the GPU works at sobbing like there's a limiter, I tested in all modes, without vsync of course, but the fps are not blocked because they reach based on visual even higher values, I can also see by the ammeter if the board is working very hard or not, and in fact, consumption is much lower than in other situations, for example in beta starwars board goes as it should, always gpu at 100%, then it's not even a hardware configuration problem, I think the drivers have serious problems dealing with energy conservation going completely haywire.

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