![]() ![]() In this screenshot of my CPU-Z readout, we see that the CPU I'm using reports its bus speed as 133.82MHz. Let's take my First Generation Intel i7-930 Nehalem CPU as an example. It's a bit more complex than this, of course, but for purposes of keeping this guide as the promised top-level primer, we'll boil it down to this simplified and practical equation: External Clock Rate * CPU Multiplier = Outputted Core Speed ("Internal Clock Rate") The external clock is what CPU-Z identifies as the 'Bus Speed,' or aforementioned base clock. A very brief overview of microprocessing / silicon chip architecture will reveal that there are internal and external clocks for CPUs the internal clock is the product of the multiplier with the external clock. CPU-Z will cite this metric as the "Bus Speed," found in the lower-left area of the "Clocks" sub-section. You'll need this in a moment.Īll microprocessors operate on what we see as their base clock rate ( BCLK). It's quick to install, free, and indispensable for system diagnostics. If you read our Benchmark Your PC Like a Pro guide, you've heard of CPU-Z. GPU overclocking is the simplest and is covered in the video above. I'll primarily summarize CPU overclocking since it's generally the most desired. If we look at a more contemporary example, here's what your standard 4GHz Ivy Bridge CPU would look like: MSI's OCGenie and ASUS' AI Tweaker are good examples of this, but those don't often achieve the level of accuracy and max-performance-to-stability that manual tweaking will. At the end of the day, the objective is to make things faster - modern BIOS interfaces (along with its newer UEFI and Visual BIOS counterparts) are equipped with guided overclocking features. Overclocking's fundamentals remain largely constant, regardless of the component you're working with. If you're looking for more info on GPU overclocking's fundamentals, check out this video:Ĭore Concept - CPU Overclocking, Voltages, Multipliers, vCore, Clock Speeds We've provided a video to help speed up your understanding, though you'll get more depth in the remainder of the article: While this guide won't go into numeric specifics for overclocking your components (primarily because this varies based on each hardware configuration), we can provide a firm starting ground to help you understand what you're looking at.Īdditionally, you may want to look into an aftermarket heatsink for more extreme overclocking. How do I overclock my CPU, GPU, or memory? What's the methodology? ![]()
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