XFX Radeon R9 390X Video Card R9-390X-8256 - Newegg.com
XFX R9 390X Black Edition Review | Temperatures and Power Draw | GPU & Displays | OC3D Review
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MSI Radeon R9 390X Gaming 8GB
R9 390X Red Dead Redemption 2 benchmark with Intel Core i7-4790K @ 4.00GHz at Ultra Quality: 1080p, 1440p, Ultrawide, 4K Performance Benchmarks - GPUCheck United States / USA
XFX USA
ASUS Radeon R9 390X STRIX 8GB Video Card Review - Legit Reviews
Radeon R9 390X Review: Roughly ~10% performance gain over 290X mainly thanks to driver optimization (German source - scroll down for benchmarks). : r/Amd
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AMD R9 390X, Nvidia GTX 980 Ti and Titan X Benchmarks Leaked
MSI Radeon R9 390X Gaming 8G OC review - DX11: Grand Theft Auto V