diff --git a/src/core/hw/gpu.cpp b/src/core/hw/gpu.cpp
index 4f6a31441..e31ea4e5c 100644
--- a/src/core/hw/gpu.cpp
+++ b/src/core/hw/gpu.cpp
@@ -30,8 +30,6 @@ namespace GPU {
 Regs g_regs;
 Memory::MemorySystem* g_memory;
 
-/// 268MHz CPU clocks / 60Hz frames per second
-const u64 frame_ticks = static_cast<u64>(BASE_CLOCK_RATE_ARM11 / SCREEN_REFRESH_RATE);
 /// Event id for CoreTiming
 static Core::TimingEventType* vblank_event;
 
diff --git a/src/core/hw/gpu.h b/src/core/hw/gpu.h
index 4e1c92289..1e49967e9 100644
--- a/src/core/hw/gpu.h
+++ b/src/core/hw/gpu.h
@@ -12,6 +12,7 @@
 #include "common/bit_field.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
+#include "core/core_timing.h"
 
 namespace Memory {
 class MemorySystem;
@@ -19,10 +20,12 @@ class MemorySystem;
 
 namespace GPU {
 
-// TODO(xperia64): This should be defined by the number of
-// ARM11 cycles per vblank interval once that value is measured
-// and not the other way around
-constexpr double SCREEN_REFRESH_RATE = 59.833997376556916;
+// Measured on hardware to be 2240568 timer cycles or 4481136 ARM11 cycles
+constexpr u64 frame_ticks = 4481136ull;
+
+// Refresh rate defined by ratio of ARM11 frequency to ARM11 ticks per frame
+// (268,111,856) / (4,481,136) = 59.83122493939037Hz
+constexpr double SCREEN_REFRESH_RATE = BASE_CLOCK_RATE_ARM11 / static_cast<double>(frame_ticks);
 
 // Returns index corresponding to the Regs member labeled by field_name
 #define GPU_REG_INDEX(field_name) (offsetof(GPU::Regs, field_name) / sizeof(u32))