diff --git a/rpcs3/Emu/Cell/PPUThread.cpp b/rpcs3/Emu/Cell/PPUThread.cpp
index a1a0a427b6..0d9269af04 100644
--- a/rpcs3/Emu/Cell/PPUThread.cpp
+++ b/rpcs3/Emu/Cell/PPUThread.cpp
@@ -1227,7 +1227,7 @@ static bool ppu_store_reservation(ppu_thread& ppu, u32 addr, T reg_value)
 	const T old_data = static_cast<T>(ppu.rdata << ((addr & 7) * 8) >> size_off);
 	auto& res = vm::reservation_acquire(addr, sizeof(T));
 
-	if (std::exchange(ppu.raddr, 0) != addr || addr % sizeof(T) || old_data != data || ppu.rtime != res)
+	if (std::exchange(ppu.raddr, 0) != addr || addr % sizeof(T) || old_data != data || ppu.rtime != (res & -128))
 	{
 		return false;
 	}
diff --git a/rpcs3/Emu/Cell/SPUThread.cpp b/rpcs3/Emu/Cell/SPUThread.cpp
index 5ab587c1a6..b931bec5c4 100644
--- a/rpcs3/Emu/Cell/SPUThread.cpp
+++ b/rpcs3/Emu/Cell/SPUThread.cpp
@@ -2021,7 +2021,7 @@ bool spu_thread::process_mfc_cmd()
 		if (raddr && raddr != addr)
 		{
 			// Last check for event before we replace the reservation with a new one
-			if (vm::reservation_acquire(raddr, 128) != rtime || !cmp_rdata(rdata, vm::_ref<decltype(rdata)>(raddr)))
+			if ((vm::reservation_acquire(raddr, 128) & -128) != rtime || !cmp_rdata(rdata, vm::_ref<decltype(rdata)>(raddr)))
 			{
 				ch_event_stat |= SPU_EVENT_LR;
 			}
@@ -2063,7 +2063,7 @@ bool spu_thread::process_mfc_cmd()
 				return false;
 			}
 
-			if (cmp_rdata(to_write, rdata))
+			if (!g_use_rtm && cmp_rdata(to_write, rdata))
 			{
 				// Writeback of unchanged data. Only check memory change
 				return cmp_rdata(rdata, vm::_ref<decltype(rdata)>(addr)) && res.compare_and_swap_test(rtime, rtime + 128);