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Lunar Lake's Lion Cove implementation contains a 2.5 MB L2 cache while the Lion Cove variant in Arrow Lake contains contains a 3 MB L2 cache. Lion Cove's larger L2 cache continues the trend of Intel increasing the size of the L2 cache for the last few generations of their P-cores such as Golden Cove, Raptor Cove and Redwood Cove. The previous ...
A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. [1] A cache is a smaller, faster memory, located closer to a processor core, which stores copies of the data from frequently used main memory locations.
Cache; L1 cache: 80 KB [3] per core (32 instructions + 48 data) L2 cache: 1.25 MB per core: L3 cache: Up to 24 MB, shared: Architecture and classification; Technology node: Intel 10 nm SuperFin (10SF) process: Microarchitecture: Willow Cove: Instruction set: x86-64: Instructions: x86-64: Physical specifications; Cores
However, with a multiple-level cache, if the computer misses the cache closest to the processor (level-one cache or L1) it will then search through the next-closest level(s) of cache and go to main memory only if these methods fail. The general trend is to keep the L1 cache small and at a distance of 1–2 CPU clock cycles from the processor ...
A typical CPU reads a single L2 cache line of 128 bytes from DRAM into the L2 cache, and a single L1 cache line of 64 bytes from the L2 cache into the L1 cache. Caches with a prefetch input queue or more general anticipatory paging policy go further—they not only read the data requested, but guess that the next chunk or two of data will soon ...
There are also improvements in the branch predictor. The L1 cache size is 64 KB for instructions per core and 32 KB for data per core. The L2 cache size 512 KB per core, and the L3 is 1–2 MB per core. L3 caches offer 5× the bandwidth of previous AMD designs.
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A smaller 32 KB L1 cache from the 64 KB L1 cache configuration is optional. To offset this smaller L1 memory, the branch predictor is better at covering irregular search patterns and is capable of following two taken branches per cycle, which results in fewer L1 cache misses and helps hide pipeline bubbles to keep the core well supplied.