AMD Ryzen 7 3780U vs AMD Ryzen 5 4600U
AMD Ryzen 7 3780U
► remove from comparisonThe AMD Ryzen 7 3780U,a Microsoft Surface edition chip, is a mobile SoC that was announced in Oct 2019 as part of the new Surface Laptop 15. It combines four Zen+ cores (8 threads) clocked at 2.3 - 4 GHz with a Radeon RX Vega 11 graphics card with 11 CUs (704 Shaders) clocked at up to 1400 MHz. Specified at 15 Watt TDP, the SoC is intended for thin mid-range laptops.
Compared to the similar Ryzen 7 3700U, the 3780U offers the faster Vega 11 instead of the Vega 10 GPU.
The Picasso SoCs use the Zen+ microarchitecture with slight improvements that should lead to a 3% IPC (performance per clock) improvements. Furthermore, the 12nm process allows higher clock rates at similar power consumptions.
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
While we have not tested a single system powered by the 3780U as of August 2023, it's safe to expect the chip to be about as fast as the Ryzen 7 3700U, as far as multi-thread performance is concerned.
AMD Ryzen 5 4600U
► remove from comparisonThe AMD Ryzen 5 4600U is a processor for thin and light laptops based on the Renoir architecture. The 4600U integrates six cores based on the Zen 2 microarchitecture. They are clocked at 2.1 (guaranteed base clock) to 4 GHz (Turbo) with SMT / Hyperthreading support (12 threads). The chip is manufactured in the modern 7 nm process at TSMC and partly thanks to it AMD advertises a 2x improved performance per Watt for the Renoir chips.
With two less cores, the Ryzen 5 4600U is clearly slower than the Ryzen 7 4700U and 4800U in multi threaded workloads. However, it should still beat the fastest 15 Watt Ice Lake Intel Core i7-1065G7 (4 cores, 3.9 GHz). Thanks to the 4 GHz Boost clock, the single core performance should be similar. Therefore, the Ryzen 5 4600U is a very fast 15 Watt CPU and clearly faster than the old Ryzen 7 3700U.
In addition to the six CPU cores, the APU also integrates a Radeon RX Vega 6 integrated graphics card with 6 CUs and up to 1500 MHz. The dual channel memory controller supports DDR4-3200 and energy efficient LPDDR4-4266 RAM. Furthermore, 8 MB level 3 cache can be found on the chip. See our hub page on the Renoir Processors for more information.
The TDP of the APU is specified at 15 Watt (default) and can be configured from 10 to 25 Watt by the laptop vendor. That means the chip is intended for thin and light laptops (but with fans).
Model | AMD Ryzen 7 3780U | AMD Ryzen 5 4600U | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Series | AMD Picasso (Ryzen 3000 APU) | AMD Renoir (Ryzen 4000 APU) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Codename | Picasso-U (Zen+) | Renoir-U (Zen 2) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Series: Renoir (Ryzen 4000 APU) Renoir-U (Zen 2) |
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Clock | 2300 - 4000 MHz | 2100 - 4000 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||
L1 Cache | 384 KB | 384 KB | ||||||||||||||||||||||||||||||||||||||||||||||||||||
L2 Cache | 2 MB | 3 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||
L3 Cache | 4 MB | 8 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Cores / Threads | 4 / 8 | 6 / 12 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
TDP | 15 Watt | 15 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Transistors | 4500 Million | |||||||||||||||||||||||||||||||||||||||||||||||||||||
Technology | 12 nm | 7 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||
max. Temp. | 105 °C | 105 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Socket | FP5 | FP6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Features | DDR4-2400 RAM, PCIe 3, MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA | DDR4-3200/LPDDR4-4266 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
iGPU | AMD Radeon RX Vega 11 ( - 1400 MHz) | AMD Radeon RX Vega 6 (Ryzen 4000/5000) ( - 1500 MHz) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | x86 | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Announced | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer | www.amd.com | www.amd.com |