AMD Ryzen 9 4900H vs AMD Ryzen 5 4500U

AMD Ryzen 9 4900H

► remove AMD R9 4900H

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 4500U

► remove AMD R5 4500U

The AMD Ryzen 5 4500U is a processor for thin and light laptops based on the Renoir architecture. The 4500U integrates six cores based on the Zen 2 microarchitecture. They are clocked at 2.3 (guaranteed base clock) to 4 GHz (Turbo) without SMT / Hyperthreading support (6 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. Compared to the similar Ryzen 5 4600U, the 4500U offers no SMT, but otherwise shoudl perform quite similar. 

With two less cores, the Ryzen 5 4500U 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 9 4900HAMD Ryzen 5 4500U
AMD Renoir (Ryzen 4000 APU)AMD Renoir (Ryzen 4000 APU)
Renoir (Zen 2)Renoir (Zen 2)
: Renoir (Ryzen 4000 APU) Renoir (Zen 2)
» AMD Ryzen 9 4900H3300 - 4400 MHz8 / 168 MB
AMD Ryzen 9 4900HS compare3000 - 4300 MHz8 / 168 MB
AMD Ryzen 7 4800H compare2900 - 4200 MHz8 / 167.9 MB
AMD Ryzen 7 4800HS compare2900 - 4200 MHz8 / 168 MB
AMD Ryzen 5 4600H compare3000 - 4000 MHz6 / 1211 MB
AMD Ryzen 5 4600HS compare3000 - 4000 MHz6 / 128 MB
AMD Ryzen 7 4800U compare1800 - 4200 MHz8 / 168 MB
AMD Ryzen 7 4700U compare2000 - 4100 MHz8 / 88 MB
AMD Ryzen 5 4600U compare2100 - 4000 MHz6 / 128 MB
AMD Ryzen 5 4500U2300 - 4000 MHz6 / 68 MB
AMD Ryzen 3 4300U compare2700 - 3700 MHz4 / 46 MB
AMD Ryzen 9 4900H3300 - 4400 MHz8 / 168 MB
AMD Ryzen 9 4900HS compare3000 - 4300 MHz8 / 168 MB
AMD Ryzen 7 4800H compare2900 - 4200 MHz8 / 167.9 MB
AMD Ryzen 7 4800HS compare2900 - 4200 MHz8 / 168 MB
AMD Ryzen 5 4600H compare3000 - 4000 MHz6 / 1211 MB
AMD Ryzen 5 4600HS compare3000 - 4000 MHz6 / 128 MB
AMD Ryzen 7 4800U compare1800 - 4200 MHz8 / 168 MB
AMD Ryzen 7 4700U compare2000 - 4100 MHz8 / 88 MB
AMD Ryzen 5 4600U compare2100 - 4000 MHz6 / 128 MB
» AMD Ryzen 5 4500U2300 - 4000 MHz6 / 68 MB
AMD Ryzen 3 4300U compare2700 - 3700 MHz4 / 46 MB
3300 - 4400 MHz2300 - 4000 MHz
512 KB384 KB
4 MB3 MB
8 MB8 MB
8 / 166 / 6
45 15
7 7
105 °C105 °C
FP6FP6
XFR, FMA3, SSE 4.2, AVX2, SMTXFR, FMA3, SSE 4.2, AVX2, SMT
iGPUAMD Radeon RX Vega 8 (Ryzen 4000) ( - 1750 MHz)AMD Radeon RX Vega 6 (Ryzen 4000) ( - 1500 MHz)
AMD Renoir (Ryzen 4000 APU) R5 4500U

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)