AMD Ryzen 9 4900H vs AMD Ryzen 7 4700U

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 7 4700U

► remove AMD R7 4700U

The AMD Ryzen 7 4700U is a processor for thin and light laptops based on the Renoir architecture. The 4700U integrates all eight cores based on the Zen 2 microarchitecture. They are clocked at 2 (guaranteed base clock) to 4 GHz (Turbo) without SMT / Hyperthreading support (8 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 faster R7 4800U, the 4700U offers a slightly lower boost clock speed and does not support SMT / Hyperthreading.

Due to the missing SMT and slightly lower boost clock, the Ryzen 7 4700U should be a bit slower than the Ryzen 8 4800U (fastest 15W model at launch). Therefore, it should still beat the Intel Core i7-1065G7 (Ice Lake, 4 cores, 3.9 GHz) in multi-threaded loads easily. The single core performance should be similar (as the 4800U is 4% faster compared to the i7 in Cinebench R20 according to AMD). Therefore, the R7 4700U is one of the fastest 15W processors, if the cooling of the laptop is sufficient.

In addition to the eight CPU cores, the APU also integrates a Radeon RX Vega 7 integrated graphics card with 7 CUs and up to 1600 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 7 4700U
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 4700U2000 - 4100 MHz8 / 88 MB
AMD Ryzen 5 4600U compare2100 - 4000 MHz6 / 128 MB
AMD Ryzen 5 4500U compare2300 - 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 4700U2000 - 4100 MHz8 / 88 MB
AMD Ryzen 5 4600U compare2100 - 4000 MHz6 / 128 MB
AMD Ryzen 5 4500U compare2300 - 4000 MHz6 / 68 MB
AMD Ryzen 3 4300U compare2700 - 3700 MHz4 / 46 MB
3300 - 4400 MHz2000 - 4100 MHz
512 KB512 KB
4 MB4 MB
8 MB8 MB
8 / 168 / 8
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 7 ( - 1600 MHz)
AMD Renoir (Ryzen 4000 APU) R7 4700U

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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)