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Over the past few weeks, chatter has increased about 火箭湖’的性能以及相应的基准泄漏。我们’我们已经看到了各种CPU的Geekbench结果,并亲自编写了一些比较。由于泄漏不断发生,因此收集对RKL的期望以及如何获得期望似乎更有帮助’它可能会与Zen 3 / 锐龙5000相比,而不是继续单独剖析每个泄漏。我们’re comparing CPUs here rather than platforms, but 火箭湖 also introduces features like PCIe 4.0 for 英特尔 CPUs.

火箭湖 uses 英特尔’赛普拉斯Cove CPU架构。赛普拉斯湾是英特尔的后勤基地’在公司基础上建造的2019 Ice 湖建筑’较旧的14纳米制程。尽管该节点的特性更适合构建高性能多核CPU,但英特尔仍将14nm用于台式机,尽管在移动市场上有10nm。预计Cypress Cove将提供比Comet 湖高约1.19倍的IPC,并将为消费系统带来AVX-512支持。但是,这实际上将与AMD相提并论吗?

First, we expect 火箭湖 to deliver strong single-thread performance improvements. Ever since AMD launched 雷岑, 英特尔 has emphasized high single-threaded performance. AMD claimed the gaming market with the launch of the 锐龙5000 series, but 火箭湖 offers 英特尔 a chance to seize it back again. Various leaked results suggest 火箭湖’单线程性能约为1.17倍–比同类Comet 湖处理器快1.35倍。这两种方式都代表着可观的世代相传。

英特尔’CES今年早些时候发布的Core i9-11900K幻灯片。

在中度线程应用中,英特尔将在对抗AMD方面表现最强’规模远远超过八个核心。预期的IPC增益足够高,足以使英特尔真正抢占整个游戏领域。

火箭湖’的多线程性能很难预测。暗示重大单线程飞跃的相同泄漏有时会预测到1.1倍的较小多线程改进–1.25x,取决于应用程序和CPU。一些泄漏的结果使用的是工程样品,而不是零售芯片,而且范围广泛的结果并不罕见。最积极的漏洞表明,Core i9-11900K将与Core i9-10900K匹配或略微超过Core i9-10900K’的性能,即使它仅将八个核心分配给它的前任’10.不太恭维的预测表明Core i9-11900K将紧随10900K之后。我们’在实践中很可能会看到这两个结果,具体取决于应用程序的存在或不存在的程度’t fond of 英特尔’赛普拉斯湾的架构。

我们不 ’t expect dramatic improvements in power consumption, since 英特尔 is still working with the same 14nm node. We expect any power efficiency improvements 火箭湖 delivers to arrive courtesy of improved IPC as opposed to intrinsically lower transistor-level power consumption. If 英特尔 has managed to improve IPC 和 absolute power consumption, so much the better.

火箭湖 isn’t going to beat AMD’整个产品堆栈。像5900X和5950X这样的CPU仍将是线程良好的应用程序中绝对的性能领导者。但是英特尔不是’t trying to demonstrate that its eight-core chip can beat a 16-core CPU. 火箭湖 is intended to show that 英特尔 can still move the desktop forward 和 improve IPC, while hopefully winning back specific segments like gaming. Back in 2018, 英特尔 told the assembled press it was working on a new process-agnostic design methodology that would allow it to move CPUs between nodes much more easily than before. 火箭湖 is a step towards that flexibility.

Overall, we expect 火箭湖 to seriously challenge AMD on single-threaded performance, particularly in gaming. In multi-threaded, we expect the 核心 i9-11900K to match or slightly exceed the 5800X. AMD’s 雷岑 9 5900X 和 雷岑 9 5950X will outpace 火箭湖 in any multi-threaded performance comparison, but that’可以预期。每瓦性能可能会有利于AMD。每美元的性能将取决于英特尔如何定价其CPU。如果英特尔大胆地定价,它可能能够在几个价位上击败AMD。如果它坚持其典型行为,并且价格远高于同等的AMD CPU,那么Red Team可能会继续保持总体价格/性能优势。

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