You can finally overclock your HDMI Freesync monitor with CRU 1.3! : Amd
How to Overclock Your Monitor (Quick Refresh Rate Boost)
Custom Resolution Utility (CRU) - Page 183
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TÓPICO DEDICADO] - Monitores: Overclock, Hacks Freesync (Gsync?), configs, edits, CRU, etc.. | Fórum Adrenaline - Um dos maiores e mais ativos fóruns do Brasil
Custom Resolution Utility (CRU) - Page 290
Custom Resolution Utility (CRU) - Page 299
About CRU Timings - Blur Busters Forums
Custom Resolution Utility (CRU) - Page 329
Custom Resolution Utility / CRU - Download for Windows 7/8/10