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AMD Ryzen 5 7645HX

AMD R5 7645HX

The AMD Ryzen 5 7645HX is a fast high-end laptop processor of the Dragon Range series. It offers 6 cores based on the Zen 4 architecture that supports hyperthreading (12 threads). The cores clock from 4 (base) up to 5 GHz (single core boost).

The performance of the R5 7645HX should be significantly higher than the fastest 6-core CPU of the Ryzen 6000 mobile series the Ryzen 5 6600H. Especially single threaded performance should be very good thanks to the new Zen 4 cores and relatively high clock speeds. This means even the old Ryzen 9 6980HX (also 5 GHz, but Zen 3) should be slightly slower in single threaded workloads.

The Dragon Range series still uses a chiplet design with two CCD-clusters (each with 8 possible cores, the 7645HX only uses one CCD with 6 of the 8 cores) in 5nm and an IO-die (including the memory controller and the Radeon 610M iGPU) in 6nm. The chip integrates 4x USB 3.2 Gen2 (10 Gbps) ports (no USB4), 28 PCIe 5.0 lanes (for GPU and SSDs) and a dual-channel DDR5-5200 memory controller.

The R5 7645HX is rated at a TDP of 55 Watt and can be configured up to 75 Watt (cTDP).

SeriesAMD Dragon Range (Zen 4, Ryzen 7045)
CodenameDragon Range (Zen4)
Clock Rate4000 - 5000 MHz
Level 1 Cache384 KB
Level 2 Cache6 MB
Level 3 Cache32 MB
Number of Cores / Threads6 / 12
Power Consumption (TDP = Thermal Design Power)55 Watt
Transistor Count9900000 Million
Manufacturing Technology5 nm
Max. Temperature100 °C
GPUAMD Radeon 610M (400 - 2200 MHz)
64 Bit64 Bit support
Announcement Date01/05/2023
Product Link (external)


Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
45.7 pt (63%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
2276 Points (14%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
289 Points (87%)
wPrime 1.55 - wPrime 1.55 1024m *
81.7 s (0%)
wPrime 1.55 - wPrime 1.55 32m *
2.9 s (2%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
18.6 fps (33%)
Power Consumption - Prime95 Power Consumption - external Monitor *
124 Watt (21%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
128 Watt (23%)
Power Consumption - Idle Power Consumption - external Monitor *
19.4 Watt (13%)
Power Consumption - Idle Power Consumption 150cd 1min *
24.6 Watt (27%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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