Lenovo ThinkPad L15 Gen 4 in review: A battery-efficient, silent Ryzen laptop
AMD Ryzen 7 PRO 7730U | AMD Radeon RX Vega 8 (Ryzen 4000/5000) | 15.60" | 1.9 kg
The AMD Ryzen 7 PRO 7730U is a processor for thin and light laptops based on the Cezanne generation. It is part of the second "Barcelo" refresh in early 2023 and offers the same specifications as the old Ryzen 7 5825U. The CPU integrates all eight cores based on the Zen 3 microarchitecture clocked at 2 (guaranteed base clock) to 4.5 GHz (Turbo) and support SMT / Hyperthreading (16 threads). The chip is manufactured in 7nm at TSMC. In comparison to the similar Ryzen 7 7730U, the PRO variant is aimed at business use and supports additional manageability and security features.
The Zen 3 microarchitecture offers significantly higher IPC (instructions per clock) compared to Zen 2 but falls behind the current Zen 4-based CPUs (e.g., 7040HS series).
Performance
The average 7730U in our database performs similarly to the Ryzen 7 5825U, Ryzen 7 6800U, Ryzen 7 PRO 6850U, and also the Core i7-1360P concerning multi-thread benchmark scores.
In addition to the eight CPU cores, the APU also integrates a Radeon RX Vega 8 GPU with 8 CUs operating at up to 2000 MHz. The dual-channel memory controller supports DDR4-3200 and energy-efficient LPDDR4-4266 RAM. Furthermore, a 16 MB level 3 cache (up from 8 MB on the 4800U) can be found on the chip.
The TDP of the APU is specified at 15 Watts (compared to the 5825U, which was specified between 10 and 25W).
Codename | Barcelo-U Refresh | ||||||||||||||||
Series | AMD Cezanne (Zen 3, Ryzen 5000) | ||||||||||||||||
Series: Cezanne (Zen 3, Ryzen 5000) Barcelo-U Refresh
| |||||||||||||||||
Clock Rate | 2000 - 4500 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) | 15 Watt | ||||||||||||||||
Manufacturing Technology | 7 nm | ||||||||||||||||
Max. Temperature | 95 °C | ||||||||||||||||
Socket | FP6 | ||||||||||||||||
Features | DDR4-3200/LPDDR4x-4266 RAM (incl. ECC), PCIe 3, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | ||||||||||||||||
GPU | AMD Radeon RX Vega 8 (Ryzen 4000/5000) ( - 2000 MHz) | ||||||||||||||||
64 Bit | 64 Bit support | ||||||||||||||||
Architecture | x86 | ||||||||||||||||
Announcement Date | 01/04/2022 | ||||||||||||||||
Product Link (external) | www.amd.com |
Lenovo ThinkPad L15 Gen 4 21H70021GE: AMD Radeon RX Vega 8 (Ryzen 4000/5000), 15.60", 1.9 kg
» Lenovo ThinkPad L15 Gen 4: Ryzen power, endurance, and quiet fans for under $700
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