AMD Ryzen 9 4900H vs AMD Ryzen 5 4600U vs AMD Ryzen 7 4800H
AMD Ryzen 9 4900H► remove from comparison
The AMD Ryzen 9 4900H is a mobile SoC for big laptops based on the Renoir architecture. At the time of announcement in March 2020 it is the fastest model of the 4000H series. The R9 4900H integrates all eight cores based on the Zen 2 microarchitecture. They are clocked at 3.3 (guaranteed base clock) to 4.4 GHz (Turbo) and support SMT / Hyperthreading (16 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
According to our information, the Ryzen 9 4900H is only slightly faster than the Ryzen 7 4800H. The CPU is clocked 400 MHz (base +14%) to 200 MHz (boost +5%) higher, but the gains greatly depend on the cooling and TDP settings. Compared to Intel chips, the i9-9980HK top model should be comparable. That means the Ryzen 9 4900H should be able to handle all demanding tasks and gaming.
In addition to the eight CPU cores, the APU also integrates a Radeon RX Vega 8 integrated graphics card with 8 CUs. The dual channel memory controller supports DDR4-3200 and energy efficient LPDDR4-4266 RAM. Furthermore, 12 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 45 Watt (default). That means the chip is intended for big and relatively heavy laptops.
AMD Ryzen 5 4600U► remove from comparison
The 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).
AMD Ryzen 7 4800H► remove from comparison
The AMD Ryzen 7 4800H is a Renoir APU designed for larger, more powerful laptops with room for better termals. The Ryzen features eight Zen 2 cores running at 2.9 GHz (base clock speed) to 4.2 GHz (Boost). The CPU also has 8 MB of L3 cache and a Vega series integrated GPU. Thread-doubling SMT tech is enabled in this processor, allowing for up to 16 concurrent processing threads.
Ryzen 7 4800H is manufactured on the modern 7 nm TSMC process and in part thanks to this fact AMD promises an up to 2x higher performance-per-watt figure compared to Ryzen 3000 series mobile APUs. This isn't the only noteworthy change however as Zen 2 architecture is leagues ahead of the outgoing Zen+ when it comes to single-core performance. Renoir family processors feature up to 8 CPU cores compared to 4 cores of the previous generation mobile AMD CPUs.
A 4800H will work with dual-channel DDR4-3200 or quad-channel LPDDR4-4266 RAM. The important difference between desktop Ryzen 4000 and mobile Ryzen 4000 processors is that the latter do not have PCI-Express 4.0 support, meaning those blazing-fast NVMe SSDs will be limited to a throughput of 3.9 GB/s.
The Ryzen 7 gets soldered straight to the motherboard (FP6 socket) and is thus not user-replaceable. Please go to our Renoir processor family hub for more information on these CPUs.
Long-term performance sustainability of any mobile CPU tends to depend heavily on cooling system performance as well as TDP settings of a laptop. That said, the average 4800H in our database beats the Intel Core i7-10875H with ease, approaching the realm of Intel Core i9-10980HK. The Ryzen's single-core performance does not look quite as impressive though as it can trail behind Core i3-1005G1 (a dual-core Ice Lake part) in certain tests. This is not really important as most modern apps will gladly load as many cores as they can get access to.
Ryzen 7 4800H features the Radeon RX Vega 7, a 7 CU integrated graphics adapter running at up to 1,600 MHz. The iGPU's underlying architecture is fairly old as of 2021, yet its 448 shaders will let you play many games of 2020 and 2021 as long as you stick to reasonable resolutions and presets. F1 2021 runs well at medium quality, 1080p resolution, to give you an example. A Vega 7 can be as fast as a GeForce GTX 1050 Max-Q, or as slow as an 80 EU Iris Xe; this depends on the benchmark as well as on cooling system performance and TDP settings of a laptop as mentioned above. As the iGPU has no VRAM of its own, it is paramount that fast system RAM is used.
The Vega definitely supports UHD 2160p monitors at 60 Hz. This iGPU is capable of hardware decoding AVC, HEVC and VP9-encoded videos. There is no AV1 support here.
Ryzen 7 4800H has a default TDP of 45 W which can be changed to anywhere between 35 W and 54 W by an OEM. The chip is a good fit for gaming laptops as well as portable workstations, with high-performance cooling solution being pretty much a necessity. AMD Ryzen 7 4800HS is a 35 W edition of Ryzen 7 4800H designed for leaner, less power-hungry systems.
|Model||AMD Ryzen 9 4900H||AMD Ryzen 5 4600U||AMD Ryzen 7 4800H|
|Series||AMD Renoir (Ryzen 4000 APU)||AMD Renoir (Ryzen 4000 APU)||AMD Renoir (Ryzen 4000 APU)|
|Codename||Renoir (Zen 2)||Renoir (Zen 2)||Renoir (Zen 2)|
|Series: Renoir (Ryzen 4000 APU) Renoir (Zen 2)|
|Clock||3300 - 4400 MHz||2100 - 4000 MHz||2900 - 4200 MHz|
|L1 Cache||512 KB||384 KB||512 KB|
|L2 Cache||4 MB||3 MB||4 MB|
|L3 Cache||8 MB||8 MB||8 MB|
|Cores / Threads||8 / 16||6 / 12||8 / 16|
|TDP||45 Watt||15 Watt||45 Watt|
|Technology||7 nm||7 nm||7 nm|
|max. Temp.||105 °C||105 °C||105 °C|
|Features||XFR, FMA3, SSE 4.2, AVX2, SMT||XFR, FMA3, SSE 4.2, AVX2, SMT||XFR, FMA3, SSE 4.2, AVX2, SMT|
|iGPU||AMD Radeon RX Vega 8 (Ryzen 4000) ( - 1750 MHz)||AMD Radeon RX Vega 6 (Ryzen 4000/5000) ( - 1500 MHz)||AMD Radeon RX Vega 7 ( - 1600 MHz)|
|Manufacturer||AMD Renoir (Ryzen 4000 APU) R5 4600U||AMD Renoir (Ryzen 4000 APU) R7 4800H|