PiFast score 14sec 730ms with a i7-7700K
Thursday, 01 January 1970 07:00 | Update at null
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Information Detail
Hardware: Intel Core i7 7700K
Specs:CPUID : Intel(R) Core(TM) i7-7700K CPU @ 4.2GHz
Architecture : x86
Codename : Kaby Lake
L3 Cache : 8MB
Clock : 4.2GHz - 4.5GHz
Core/Thread : 4/8
TDP : 91W
Technology : 14nm
Socket : LGA1151
IGPU : Intel HD Graphics 630
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Software: PiFast
Score: 14sec 730ms
About: PiFastPiFast is a simple benchmark application designed to measure a processor's speed in performing heavy floating-point computations by calculating the value of π (pi) to millions of decimal digits. It works by running a fast algorithm based on the FFT (Fast Fourier Transform) to speed up calculations, and is commonly used to test the stability and performance of single-threaded CPUs. As PiFast only taxes a single processor core and relies entirely on the CPU's computing power and memory efficiency, the resulting times are highly sensitive to clock speed, CPU architecture, RAM latency, and system optimization. PiFast is popular among overclockers as a quick tool to measure performance improvements after overclocking.
The Intel Core i7-7700K, launched in early 2017, is a high-performance desktop processor from the 7th generation Kaby Lake family. Built on the 14nm process, the i7-7700K features 4 physical cores and 8 threads, thanks to Hyper-Threading Technology, and is targeted at enthusiasts, gamers, and power users. It operates at a base frequency of 4.2 GHz and can boost up to 4.5 GHz via Intel Turbo Boost, delivering excellent single-threaded performance one of the highest at the time of its release.
As part of Intel’s “K” series, the Core i7-7700K has an unlocked multiplier, making it ideal for overclocking on compatible Z-series motherboards. However, with a TDP of 91W, the processor demands an effective cooling solution, especially when overclocked beyond its stock speeds. Users typically pair this CPU with aftermarket air or liquid coolers to ensure thermal stability under heavy workloads or gaming sessions.
The processor includes Intel HD Graphics 630, which supports 4K output at 60Hz and is sufficient for basic tasks like web browsing, video playback, and office work. However, for serious gaming or GPU-accelerated workloads, a discrete graphics card is still necessary, especially when paired with a high-refresh-rate monitor or demanding software.
In terms of real-world performance, the i7-7700K remains capable even today for 1080p and 1440p gaming, general productivity, and creative tasks. It delivers solid frame rates in many modern titles when used with a modern GPU, and it handles applications like Adobe Photoshop, Premiere Pro, and coding environments reasonably well. However, due to its limited core count by today’s standards and lack of PCIe 4.0 support, it has started to show its age in multi-threaded and next-gen workloads.
Despite being surpassed by newer Intel and AMD CPUs with more cores and better efficiency, the i7-7700K still holds value in many mid-range desktop setups, especially for users who already own an LGA 1151 system and want to maximize performance without a full platform upgrade.
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