Notebookcheck

AMD Renoir Architecture: Ryzen 4000 APUs with Zen 2 and Vega Graphics in 7nm

Currently three versions of Renoir APUs are planned according to AMD:

  • 15 Watt U series: For thin and light laptops. The TDP can be configured from 12 to 25 Watt and the high end version offers all 8 CPU cores. The base clock speed however is rather low, and depending on the cooling solution the long term performance may suffer.
  • 35 / 45 Watt H series: Currently two versions are known of. The 35 (HS) and 45 Watt (H) versions should offer a similar performance level and offer very similar specifications. The 35 Watt versions could use selected chips. Interestingly the fastest version at launch (Ryzen 7 4800H) won't include all GPU cores, as AMD rather shifts power to the CPU cores. For the intended gaming and creator laptops, dedicated GPUs are usually used, so this should be not an issue. A Ryzen 9 version could come at a later date.
  • 65 Watt D series: Intended for desktop PCs with a higher TDP and most likely higher clock speeds than the H series. Should use the existing FM4 socket.

Zen 2 CPU Architecture

Zen 2 Microarchitecture
Zen 2 Microarchitecture

The Zen 2 cores have been introduced in the Ryzen 3000 desktop chips (Matisse, e.g. Ryzen 9 3900X) and were able to significantly improve the IPC (instructions per clock) speed and catch up and partly even overtake the Comet Lake IPC speed.

Integrated graphics card, still Vega based

The integrated graphics card in the new Renoir chips is still based on the Vega architecture (5th generation of GCN) and not the new Navi (RDNA architecture). Interestingly, it looks like the CU (compute unit) count was not increased and for the first models even decreased. However, the GPUs now clock higher across the board thanks to the new 7nm process. Therefore, we do not expect high leaps in the GPU department, but it should still position itself on top of iGPUs.

Features of the SoC

Information on additional features of the SoC are still scarce. The integrated dual channel memory controller supports now power efficient and fast LPDDR4X-4266. PCI Express 4.0 however is not supported by Renoir (in contrast to the desktop Ryzen 3000 Matisse chips). Thunderbolt or WiFi should not be integrated in the chip (in contrast to Intel Ice Lake, that partly integrates both).

Verdict

Thanks to the fast Zen 2 processor cores (and eight of them), the new 7nm process and design improvements, the Renoir chips look to be a very strong contender to Intel H and U chips (especially Comet Lake based). First benchmarks from AMD (Cinebench R20) show excellent performance for the top models of the U and H series. AMD also advertises a 2x improved performance per watt for Renoir compared to the previous generation. 30 percent of that are contributed on IPC and design improvements and 70% on 7nm process gains.

However, it always depends on the implementation in laptops on how much of the potential can be unleashed.

PosModelL2 Cache + L3 CacheTDP (Watt)MHz - TurboCores / ThreadsCinebench R15 CPU Single 64BitCinebench R15 CPU Multi 64BitCinebench R20x264 Pass 1
AMD Ryzen 9 4900H4MB + 8MB453300 ‑ 44008/16
AMD Ryzen 9 4900HS4MB + 8MB353000 ‑ 43008/16
193
1863
4288
223
AMD Ryzen 7 4800H4MB + 7.9MB452900 ‑ 42008/16
188n11
1856n15
4339n12
215.6n2
AMD Ryzen 7 4800HS4MB + 8MB352900 ‑ 42008/16
186.5n2
1700.65n2
3869
216.52
AMD Ryzen 5 4600H3MB + 11MB453000 ‑ 40006/12
176n5
1426.5n6
3237.5n4
197
AMD Ryzen 5 4600HS3MB + 8MB353000 ‑ 40006/12
AMD Ryzen 7 4800U4MB + 8MB151800 ‑ 42008/16
181.5
1397.5
3213n2
196.11
AMD Ryzen 7 PRO 4750U4MB + 8MB151700 ‑ 41008/16
182.5n2
1316.5n2
2992.5n2
AMD Ryzen 7 4700U4MB + 8MB152000 ‑ 41008/8
180.5n6
1049n7
2602n6
191.3
AMD Ryzen 5 4600U3MB + 8MB152100 ‑ 40006/12
175
838
2544n2
AMD Ryzen 5 PRO 4650U3MB + 8MB152100 ‑ 40006/12
AMD Ryzen 5 4500U3MB + 8MB152300 ‑ 40006/6
174.5n10
890n15
2190.5n10
210
AMD Ryzen 3 PRO 4450U2MB + 4MB152500 ‑ 37004/8
AMD Ryzen 3 4300U2MB + 6MB152700 ‑ 37004/4
164.91
570
1432n2
172.3
(-) * Smaller values are better. / n123 Number of benchmarks for this median value / * Approximate position

AMD Renoir APUs (Ryzen 4000) with up to 8 Zen 2 CPU cores and an integrated Vega GPU.

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additional restrictions: Renoir
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Allen Ngo, Sun, 09 Aug 2020 22:23:00 +0200
Asus has launched AMD versions of the ROG Zephyrus 14 in India

The AMD Ryzen 9 4900HS-powered Asus ROG Zephyrus G14 gaming laptop is now available for purchase in India

Asus has released its new Zephyrus G14 gaming laptop in India. It can be customized with a host of AMD Ryzen CPUs, Nvidia GeForce GTX and RTX GPUs, and comes with up to 16GB of RAM and 1TB of solid-state storage. Prices start at I...
Anil Satyanarayana, Thu, 06 Aug 2020 12:16:00 +0200
The purported X300 looks noticeably different compared to the DeskMini A300 ASRock currently sells (Image source: @momomo_us)

Picture leaks of purported ASRock X300 Renoir refresh with AMD Ryzen 4000 APU

Tipster @momomo_us leaked what appears to be a picture of ASRock’s refreshed X300 DeskMini small form-factor PC, set to feature an AMD Renoir Ryzen 4000 APU. This potentially offers workstation users better value for money, with R...
Arjun Krishna Lal, Wed, 05 Aug 2020 15:29:00 +0200
Intel's x86 chip architecture still holds an edge over AMD if an alleged PassMark score is any indication. (Image: Notebookcheck)

Intel Tiger Lake could outrun AMD Ryzen 4000 in single-core performance

An alleged PassMark score has been posted for Intel’s forthcoming Core i7-1165G7 chip going head-to-head with AMD’s Ryzen 7 4800U. Although not able to go toe-to-toe overall with the octa-core 7nm Ryzen 7, the quad-core 10nm++ Tig...
Sanjiv Sathiah, Tue, 04 Aug 2020 12:58:00 +0200
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> Notebook / Laptop Reviews and News > News > Topics > AMD Renoir Architecture: 7nm Ryzen 4000 APUs with Zen 2 and Vega GPU
Klaus Hinum, 2020-01- 9 (Update: 2020-01-25)