Core counts, TMUs, ROPs, even the GPU itself are all the same – it's the memory capacity and clockrate that have changed, with some “tuning” to the power management engine. AMD Radeon R9 390 & R9 380 SpecsĪs discussed in the review, the R9 390 and R9 380 are effectively identical to their preceding components (the R9 290 and R9 285, respectively). Results will be different for other hardware. This overclocking guide and benchmark for the R9 390 & R9 380 looks at the maximum clockrate achievable through tweaking.Īll these tests were performed with Sapphire's “Nitro” series of AMD 300 cards, specifically using the Sapphire Nitro R9 390 Tri-X and Sapphire Nitro R9 380 Dual-X cards. The end result is that the GPU is nearly maxed-out as it is, but there's still a small amount of room for overclocking play. The architectural refresh added about 50MHz to the operating frequency of each card, with some power changes and memory clock changes tacked-on.
The R9 390 and R9 380 are already pushed pretty close to their limits. Overclocking the AMD 300 series graphics cards is a slightly different experience from nVidia overclocking, but remains methodologically the same in approach: We tune the clockrate, power, and memory speeds, then test for stability. Vapor-X-kylsystem, Dual Bios, Sapphire Black Diamond Choke, AMD HD3D Technology, AMD CrossFireX Technology, AMD PowerTune-teknik, 2.5-slot Fan Cooler, AMD Unified Video Decoder (UVD) 3, Deep Color-teknik, Dolby True HD-support, DTS-HD Master Audio-support, Shader Model 5.0, AMD Eyefinity Technology 2.Following our initial review of AMD's new R9 390 ($330) and R9 380 ($220) video cards, we took the final opportunity prior to loaner returns to overclock the devices.
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