The AMD Ryzen 5 3450U is a mobile SoC that was announced in Q2 2020 as a refresh. It combines four Zen+ cores (8 threads) clocked at 2.1 GHz to 3.5 GHz (-200 MHz versus 3500U) with a Radeon RX Vega 8 iGPU with 8 CUs (512 Shaders) clocked at up to 1200 MHz.
The Picasso SoC uses the Zen+ microarchitecture with slight improvements that should lead to a 3% IPS (performance per clock) improvements. Furthermore, the 12 nm process allows for higher clocks at similar power consumption.
The integrated dual-channel memory controller supports up to DDR4-2400 memory. As the features of the Picasso APUs are the same compared to the Raven Ridge predecessors, we point to our Raven Ridge launch article.
Performance
The average 3450U in our database is in the same league as the Core i3-1115G4 and also the Ryzen 3 4300U, as far as multi-thread benchmark scores are concerned. This is a better-than-expected result for an aging lower mid-range chip that is the 3450U, as of mid 2022.
Your mileage may vary depending on how high the CPU power limits are and how competent the cooling solution of your system is.
Power consumption
The Ryzen 5 has a default TDP (also known as the long-term power limit) of 15 W, a value that laptop manufacturers are allowed to change to anything between 12 W and 35 W if required with clock speeds and performance changing correspondingly. These values are fairly high, making active cooling solutions something of a necessity.
The CPU is built with a somewhat old, as of late 2022, 12 nm process for lower-than-average energy efficiency.
| Codename | Picasso-U (Zen+) | ||||||||||||||||||||||||
| Series | AMD Picasso (Ryzen 3000 APU) | ||||||||||||||||||||||||
Series: Picasso (Ryzen 3000 APU) Picasso-U (Zen+)
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| Clock Rate | 2100 - 3500 MHz | ||||||||||||||||||||||||
| Level 1 Cache | 384 KB | ||||||||||||||||||||||||
| Level 2 Cache | 2 MB | ||||||||||||||||||||||||
| Level 3 Cache | 4 MB | ||||||||||||||||||||||||
| Number of Cores / Threads | 4 / 8 | ||||||||||||||||||||||||
| Power Consumption (TDP = Thermal Design Power) | 15 Watt | ||||||||||||||||||||||||
| Transistor Count | 4500 Million | ||||||||||||||||||||||||
| Manufacturing Technology | 12 nm | ||||||||||||||||||||||||
| Max. Temperature | 105 °C | ||||||||||||||||||||||||
| Socket | FP5 | ||||||||||||||||||||||||
| Features | DDR4-2400 RAM, 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 2000/3000) ( - 1200 MHz) | ||||||||||||||||||||||||
| 64 Bit | 64 Bit support | ||||||||||||||||||||||||
| Architecture | x86 | ||||||||||||||||||||||||
| Announcement Date | 05/01/2020 | ||||||||||||||||||||||||
| Product Link (external) | www.amd.com | ||||||||||||||||||||||||
- Average benchmark values
BMAX X14 Pro: AMD Radeon RX Vega 8 (Ryzen 2000/3000), 14.00", 1.4 kg
External Review » BMAX X14 Pro
Dell Inspiron 15 3505, Ryzen 5 3450U: AMD Radeon RX Vega 8 (Ryzen 4000/5000), 15.60", 2 kg
External Review » Dell Inspiron 15 3505, Ryzen 5 3450U
Dell Inspiron 15 3505-PXHPW: AMD Radeon RX Vega 8 (Ryzen 2000/3000), 15.60", 2 kg
» Dell Inspiron 15 3505: Ryzen office laptop with low stamina
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