Intel’s 15th Gen Arrow Lake CPUs Show Modest 5% Boost in Single Threaded Workloads

October 14, 2023

Intel's 15th Gen Arrow Lake CPUs are set to debut in the last quarter of 2024 and are expected to bring enhancements to memory speeds, PCIe Gen 5 lane counts, and other I/O capabilities, but leaked information suggests that they may not live up to expectations in terms of single-threaded performance.

  • 15% improvement in multi-threaded performance compared to the 14th Gen Raptor Lake-S Refresh
  • Larger 3MB L2 cache, up from 2MB on Raptor Cove
  • Enhancements to memory speeds, PCIe Gen 5 lane counts, and other I/O capabilities

Intel’s 15th Gen Arrow Lake CPUs have been stirring up the tech community, but leaked information suggests that they might not live up to expectations. A slide from the AnandTech forums reveals that the new “Lion CoveP-Cores will only offer a modest 5% boost in single-threaded workloads. It’s important to note that this refers to single-threaded performance gain, not IPC (Instructions Per Cycle). IPC is calculated at the same core clocks, while single-threaded performance gains can include improvements from higher clocks. Therefore, a 5% increase in single-threaded performance indicates an IPC upgrade of around 3-5%, which is quite conservative.

Tech enthusiasts were hoping for a more significant improvement in IPC, with expectations set at a 5-7% uplift over the previous Raptor Cove architecture. This would have translated into a 10-15% gain in single-threaded performance, greatly enhancing gaming performance. Unfortunately, it seems that Intel’s “Lion Cove” P-cores might fall short of these expectations.

On the bright side, the leaked slide claims a 15% improvement in multi-threaded performance compared to the 14th Gen Raptor Lake-S Refresh. This is certainly a positive development, especially for users who rely on high-performance workloads. However, it’s worth considering that the 15th Gen Arrow Lake-S processors will leverage the Intel 20A process, which could result in lower core clocks compared to Raptor Lake and its subsequent Refresh. In this case, the IPC may be slightly higher than the single-threaded performance gains.

One area where significant improvements are expected is with the E-Cores. These cores will make a leap from Gracemont to Skymont, skipping Crestmont altogether. This leap in architecture should result in considerably faster performance for the E-cores.

Intel’s Arrow Lake CPUs are set to debut in the last quarter of 2024 alongside the LGA1851 socket. As a desktop-centric lineup, they will feature the same core count as Raptor Lake, offering options with 8P and 16E cores. The Lion Cove “P-cores” will receive a larger 3MB L2 cache, up from 2MB on Raptor Cove. Additionally, these CPUs are expected to feature an L4 “Adamantine” cache, which may be shared between the CPU cores, PCH, and iGPU. This cache could greatly enhance overall performance.

In addition to these core improvements, Intel’s Arrow Lake CPUs are also expected to bring enhancements to memory speeds, PCIe Gen 5 lane counts, and other I/O capabilities. These improvements should provide a healthy boost to the overall performance and user experience.

While the leaked information might disappoint some tech enthusiasts who were hoping for more significant gains in single-threaded performance, it’s important to remember that these are early leaks and not official announcements from Intel. The final performance of the Arrow Lake CPUs could still surprise us when they are officially released.

As always, it’s crucial to wait for official benchmarks and reviews before making any judgments about the performance of Intel’s 15th Gen Arrow Lake CPUs. Until then, we can only speculate about their capabilities and how they will stack up against the competition.


Background Information

About Intel: Intel Corporation, a global technology leader, is for its semiconductor innovations that power computing and communication devices worldwide. As a pioneer in microprocessor technology, Intel has left an indelible mark on the evolution of computing with its processors that drive everything from PCs to data centers and beyond. With a history of advancements, Intel's relentless pursuit of innovation continues to shape the digital landscape, offering solutions that empower businesses and individuals to achieve new levels of productivity and connectivity.

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Technology Explained

CPU: The Central Processing Unit (CPU) is the brain of a computer, responsible for executing instructions and performing calculations. It is the most important component of a computer system, as it is responsible for controlling all other components. CPUs are used in a wide range of applications, from desktop computers to mobile devices, gaming consoles, and even supercomputers. CPUs are used to process data, execute instructions, and control the flow of information within a computer system. They are also used to control the input and output of data, as well as to store and retrieve data from memory. CPUs are essential for the functioning of any computer system, and their applications in the computer industry are vast.

E-Cores: E-Cores (Efficiency Cores) are a type of technology used in the computer industry to provide a more efficient and reliable way of powering and cooling computer components. They are made up of a combination of copper and aluminum, and are designed to be more efficient than traditional copper cores. E-Cores are used in a variety of applications, such as in CPUs, GPUs, and other computer components. They are also used in servers, laptops, and other electronic devices. The technology is designed to reduce heat and power consumption, while also providing a more reliable and efficient way of powering and cooling computer components.

iGPU: An integrated Graphics Processing Unit (iGPU) is a component built into a computer's central processing unit (CPU) or system-on-chip (SoC) that handles graphical tasks. Unlike dedicated graphics cards, which are separate components, an iGPU shares system resources with the CPU, allowing for basic graphics capabilities without the need for an additional card. While typically less powerful than dedicated GPUs, iGPUs are energy-efficient and well-suited for everyday computing tasks

P-Cores: P-Cores (Performance Cores) are a type of processor technology developed by Intel that is designed to improve the performance of computer systems. This technology is based on the concept of multi-core processors, which are processors that contain multiple cores or processing units. P-Cores are designed to increase the speed and efficiency of computer systems by allowing multiple cores to work together in parallel. This technology is used in a variety of applications, including gaming, video editing, and data analysis. P-Cores are also used in servers and other high-performance computing systems. The technology is also used in mobile devices, such as smartphones and tablets, to improve battery life and performance. P-Cores are an important part of the computer industry, as they allow for faster and more efficient computing.

PCIe: PCIe (Peripheral Component Interconnect Express) is a high-speed serial computer expansion bus standard for connecting components such as graphics cards, sound cards, and network cards to a motherboard. It is the most widely used interface in the computer industry today, and is used in both desktop and laptop computers. PCIe is capable of providing up to 16 times the bandwidth of the older PCI standard, allowing for faster data transfer speeds and improved performance. It is also used in a variety of other applications, such as storage, networking, and communications. PCIe is an essential component of modern computing, and its applications are only expected to grow in the future.

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