AMD Ryzen 7 5800U

The AMD Ryzen 7 5800U is a processor for thin and light laptops based on the Cezanne generation. The R7 5800U integrates all eight cores based on the Zen 3 microarchitecture and is the fastest U-series processor at launch. They are clocked at 1.9 (guaranteed base clock) to 4.4 GHz (Turbo) and support SMT / Hyperthreading (16 threads). The chip is manufactured on the modern 7 nm TSMC process.

The new Zen 3 microarchitecture offers a significantly higher IPC (instructions per clock) compared to Zen 2. For desktop processors AMD claims 19 percent on average and in applications reviews showed around 12% gains at the same clock speed.

With the increased clock speed and IPC improvements thanks to Zen 3, the Ryzen 7 5800U should be clearly faster than the 200 MHz lower clocked Ryzen 7 4800U.

In addition to the eight CPU cores, the APU also integrates a Radeon RX Vega 8 GPU with 8 CUs at up to 2000 MHz. The dual channel memory controller supports DDR4-3200 and energy efficient LPDDR4-4266 RAM. Furthermore, 16 MB level 3 cache (up from 8 MB at the 4800U) can be found on the chip.

The TDP of the APU is specified at 15 Watt (default) and can be configured from 10 to 25 Watt by the laptop vendor (most chips are configured higher than 15 Watt). That means the chip is intended for thin and light laptops (but with fans).

Series	AMD Cezanne (Zen 3, Ryzen 5000)
Codename	Cezanne U (Zen 3)
Series: Cezanne (Zen 3, Ryzen 5000) Cezanne U (Zen 3)	» AMD Ryzen 7 5800U 1.9 - 4.4 GHz 8 / 16 16 MB AMD Ryzen 7 PRO 5850U 1.9 - 4.4 GHz 8 / 16 16 MB AMD Ryzen 5 5600U 2.3 - 4.2 GHz 6 / 12 16 MB AMD Ryzen 5 PRO 5650U 2.3 - 4.2 GHz 6 / 12 16 MB AMD Ryzen 3 5400U 2.6 - 4 GHz 4 / 8 8 MB AMD Ryzen 3 PRO 5450U 2.6 - 4 GHz 4 / 8 8 MB
Clock Rate	1900 - 4400 MHz
Level 1 Cache	512 KB
Level 2 Cache	4 MB
Level 3 Cache	16 MB
Number of Cores / Threads	8 / 16
Power Consumption (TDP = Thermal Design Power)	25 Watt
Manufacturing Technology	7 nm
Max. Temperature	105 °C
Socket	FP6
Features	XFR, FMA3, SSE 4.2, AVX2, SMT
GPU	AMD Radeon RX Vega 8 (Ryzen 4000) ( - 2000 MHz)
64 Bit	64 Bit support
Architecture	x86
Announcement Date	01/07/2021
Product Link (external)	AMD Cezanne (Zen 3, Ryzen 5000) R7 5800U

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