AMD Ryzen 5 4600H vs AMD Ryzen 9 7840HX
AMD Ryzen 5 4600H
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The AMD Ryzen 5 4600H is a mobile SoC for big laptops based on the Renoir architecture. The 4600H integrates six of the eight cores based on the Zen 2 microarchitecture. They are clocked at 3 (guaranteed base clock) to 4 GHz (Turbo) and support SMT / Hyperthreading (12 threads).
In addition to the six CPU cores, the APU also integrates a Radeon RX Vega 6 integrated graphics adapter 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.
Performance
The average 4600H in our database matches the Intel Core i7-10875H and even the Core i9-10885H, both significantly more costly chips, in multi-thread performance, giving this Ryzen an outrageously high price-to-performance ratio.
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 chip has a default TDP (also known as the long-term power limit) of 45 W, a value that laptop makers are free to change to anything between 35 W and 54 W with clock speed and performance changing accordingly as a result. Either way, a high-performance cooling solution is a must for a CPU like this.
The 7 nm TSMC process this APU is built with makes for better-than-average, as of early 2022, energy efficiency.
AMD Ryzen 9 7840HX
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The AMD Ryzen 9 7840HX is a high-end notebook processor from the Dragon Range series with 12 cores and hyperthreading (SMT), which means it can process up to 24 threads simultaneously. The CPU uses the current Zen 4 architecture for the 12 cores and clocks these from 2.9 GHz (base clock) up to 5.1 GHz (single-core boost). The CPU offers 12 MB L2 cache and 64 MB L3 cache (i.e. a total of 76 MB cache). The 7840X consists of three chiplets, two CCD clusters with a maximum of 8 CPU cores on 5nm (71mm²) and one IO die on 6nm (122mm²) which are all manufactured by TSMC.
The performance of the Ryzen 9 should be significantly faster than the old Ryzen 9 6980HX (top model Rembrandt H, 8 cores, max 5 GHz). This is achieved by the additional cores, higher clock rate and improved architecture. Compared to the one year older Ryzen 9 7845HX, the 7840HX is clocked 100 MHz lower.
The chip also integrates 4x USB 3.2 Gen2 (10 Gbps) ports (no USB 4), 28 PCIe 5.0 lanes (for GPUs and SSDs), a dual-channel DDR5-5200 memory controller and a small AMD Radeon 610M graphics card (2CUs, 400 - 2200 MHz).
The R9 7840HX is specified with 55 watts TDP and can be configured from 45 to 75 watts (cTDP).
| Model | AMD Ryzen 5 4600H | AMD Ryzen 9 7840HX | ||||||||||||||||||||||||||||||||
| Codename | Renoir-H (Zen 2) | Dragon Range-HX (Zen 4) | ||||||||||||||||||||||||||||||||
| Series | AMD Renoir (Ryzen 4000 APU) | AMD Dragon Range (Zen 4, Ryzen 7X4X/8X4X) | ||||||||||||||||||||||||||||||||
| Series: Dragon Range (Zen 4, Ryzen 7X4X/8X4X) Dragon Range-HX (Zen 4) |
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| Clock | 3000 - 4000 MHz | 2900 - 5100 MHz | ||||||||||||||||||||||||||||||||
| L1 Cache | 384 KB | 768 KB | ||||||||||||||||||||||||||||||||
| L2 Cache | 3 MB | 12 MB | ||||||||||||||||||||||||||||||||
| L3 Cache | 8 MB | 64 MB | ||||||||||||||||||||||||||||||||
| Cores / Threads | 6 / 12 | 12 / 24 12 x 5.1 GHz AMD Zen 4 | ||||||||||||||||||||||||||||||||
| TDP | 45 Watt | 55 Watt | ||||||||||||||||||||||||||||||||
| Technology | 7 nm | 5 nm | ||||||||||||||||||||||||||||||||
| max. Temp. | 105 °C | 100 °C | ||||||||||||||||||||||||||||||||
| Socket | FP6 | FL1 | ||||||||||||||||||||||||||||||||
| Features | 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 | DDR5-5200 RAM, PCIe 5, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | ||||||||||||||||||||||||||||||||
| iGPU | AMD Radeon RX Vega 6 (Ryzen 4000/5000) ( - 1500 MHz) | AMD Radeon 610M (400 - 2200 MHz) | ||||||||||||||||||||||||||||||||
| Architecture | x86 | x86 | ||||||||||||||||||||||||||||||||
| Announced | ||||||||||||||||||||||||||||||||||
| Manufacturer | www.amd.com | www.amd.com | ||||||||||||||||||||||||||||||||
| Transistors | 9900 Million |
Benchmarks
Average Benchmarks AMD Ryzen 5 4600H → 100% n=2
Average Benchmarks AMD Ryzen 9 7840HX → 201% n=2
- Average benchmark values for this graphics card* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation
