That gave rise to speculation that it would build its Ryzen 4000 chips on TSMC's cutting-edge N7+ node, the first to use Extreme Ultraviolet (EUV) lithography in any substantial way. AMD will most likely be hungry for performance—the 7nm process already set it up for decent power efficiency with Zen 2—and clock speeds are sure to increase with Ryzen 4000.We're now expecting an in-house stream from AMD directly later this year in lieu of an event. In theory, unifying L3 cache, streamlining memory access, and cutting latency between cores.The Ryzen 9 3900XT, Ryzen 7 3800XT, and Ryzen 5 3600XT are all reportedly on the way, and are said to come with a 200-300MHz clock speed boost over their current generation namesakes. Surely too late and they won't find purchase in a market preparing for Zen 3.Here's all we know about AMD Ryzen 4000 desktop gaming CPUs and the Zen 3 architecture.Our expectations are high for AMD Ryzen 4000 CPUs—not the least bit because everything we've heard regarding it so far has been telling of a greater generational leap between Zen 2 and Zen 3 than most had expected.Thank you for signing up to PC Gamer.
AMD's not one to give the game away ahead of time, so we have an exact date as to Ryzen 4000's availability. This similarity does mean AMD won't be able to cram more circuitry into its silicon, however, as the new node doesn't offer an increase in transistor density over previous 7nm chips.Add on top of that a dash more clock speed driven by TSMC's more efficient, enhanced 7nm process node, and we're potentially eyeing up CPUs that could be some 20% faster than Zen 2—if maybe only a little slower on account of the 12nm to 7nm process node jump was far more substantial the the 7nm to enhanced 7nm half-step posited with Zen 3 and Ryzen 4000.But what does that mean for our gaming PCs? Whispers from the grapevine had told of an announcement at Taiwanese tech show, Computex, which was due to take place from September 28-30, 2020 following a delay due to the coronavirus pandemic. 第四代 Ryzen 沿用 AM4 封裝，向後兼容 X570、B550、X470、B450 等晶片主機板，配搭 X570 或 B550 晶片，同樣原生支援 PCI-E 4.0。AMD 屆時同步推出「X670」新晶片，比 X570 再增加 PCI-E 4.0 總綫數量，以提供更多 PCI-E 4.0 x16 或 M.2 SSD 插槽，也整合原生 USB 3.2 Gen 2 (20Gbps) 新介面，以及 802.11ax Wi-Fi 控制器等。按 AMD 產品路綫圖，2020 年會推出第四代 Ryzen (Ryzen 4000)，本應原定於 5 至 6 月，在台北國際電腦展 (Computex 2020) 正式發布。惟受到新冠肺炎疫情影響，第四代 Ryzen 或延至第三季才上市。第四代 Ryzen 開發代號 Vermeer，承接上代規格技術，原生支援 PCI-E 4.0 總綫，但 Zen 3 微架構大幅改良內部設計，增加 Integer (整數運算) 模組的 Scheduler 及 AGU 等單元數量；至於 Floating Point (浮點運算) 模組也有相當程度改良。消息指，Zen 3 微架構比 Zen 2 的 IPC 效能加快最多 17%，浮點運算效能大增最多 50%！第三代 Ryzen 採用 CCD (Compute Core Design) 模組設計，由 2 個 CCX (CPU Complex) 構成，每個 CCX 各具 4 顆核心及 16MB L3 緩存。惟 2 組 CCX 之間，各自資料並不直接互通，需透過 CCD 內部「Infinity Fabric PHY」單元才能聯繫，增加了延遲時間及影響效能。第四代 Ryzen 針對上述問題，屆時 CCD 2.0 新設計，8 顆核心及 32MB L3 緩存將合併一起，有助縮短延遲時間，也提升資料預測命中率 (Prefetch Hit-rate)，讓暫存於 L3 緩存的資料能立即被使用。2019 年 7 月 7 日上市的第三代 Ryzen (Ryzen 3000 系列)，開發代號 Matisse，委託 TSMC 7nm 代工生產所有型號處理器，令 AM4 封裝的最大核心數量提升至 16 顆 (型號 Ryzen 9 3950X)。第三代 Ryzen 採用「Zen 2」微架構，IPC (每時脈周期執行指令) 運算效能比上代 Zen、Zen+ 微架構快約 10%。此外，第三代 Ryzen 配合 X570 晶片，率先支援全新 PCI-E 4.0 總綫。© 2020 e-zone. With the AMD Zen 3 release date approaching, more and more is becoming known about the specs, performance, and prices of Ryzen 4000 CPUs.
All Rights Reserved.另一大改進是晶圓製程由 7nm 提升至 7nm+，看似只是小幅度改良，但事實不然。TSMC 於 2019 年 10 開始掌握 7nm+ 製程技術，透過 13.5nm 波長的 EUV Lithography (極紫外光光刻)，於矽晶圓盤 (Silicon Wafer) 進行刻蝕，在相同晶片面積下，7nm+ 的電晶體密度比 7nm 增加 15% 至 20%，而且所需運作功耗亦降低。因此，假設第四代 Ryzen 最高規格仍是 16 核心，屆時 TDP 功耗將低於現時 16 核心 Ryzen 9 3950X 的 105W。AMD 第四代 Ryzen 處理器於今年內推出，提升至「Zen 3」全新微架構，每 MHz 時脈運算效能更快，並率先採用 TSMC (台積電) 7nm+ 晶圓製程，進一步降低運作功耗。第四代 Ryzen 全綫向後兼容現有 AMD X570、B550、X470、B450 等晶片，讓用家毋須一定要更換主機板。 Monolithic chips (single silicon lumps) have been reaching maximum capacity for a while now—just look at the size of Nvidia's Turing dies—and the cost of manufacturing large monolithic chips, which are at risk of more wastage per wafer, can quickly balloon as complexity is introduced.Our best guess then puts AMD Ryzen 4000 performance roughly in line with the 15% IPC improvement with the jump from Ryzen 2000 and Ryzen 3000 CPUs (Zen+ and Zen 2, respectively).The only exception to this would be if AMD did, in fact, release new SKUs with greater core counts than the existing Ryzen 7 and Ryzen 9 processors.