Intel® Core™ i9-9900KS

The Intel Core i9-9900KS is a desktop processor with 8 cores and 16 threads, built on the Coffee Lake architecture (14 nm process). It launched in Oct 2019. Clocks run from 4.0 GHz base to 5.0 GHz boost. A 16-MB L3 cache backs the cores (2.3 MB per core). It addresses DDR4 memory up to 128 GB across 2 channels. The chip drops into the FCLGA1151 socket and exposes PCIe 3.0 (16 lanes). Rated TDP is 127 W. Notable platform capabilities: Extended Page Tables (EPT).

The Intel Core i9-9900KS scores 3,025 in single-core performance and 19,345 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 7,650 for overall performance, 16,809 for productivity performance, 16,085 for creator performance, 19,829 for engineering performance and 13,911 for gaming performance. Its multi-core throughput works out to 2,418 per core, 1,209 per thread and 152 per watt. Its computed efficiency index is 679. Its performance index is 95, so its overall performance is 5% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Core i9-9900KS scores 70,078 in integer math, 43,540 in floating-point math, 297,387 in compression, 6,901 in cryptography, 1,012 in physics simulation, 19,776 in vector SIMD, 51 in the prime sieve and 38,782 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 19% above in integer math, 5% below in floating-point math, 30% above in compression, 40% below in cryptography, 7% below in physics simulation, 28% above in vector SIMD, 24% below in the prime sieve and 71% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Core i9-9900KS has 8 physical cores and runs 16 logical threads. It runs 2 threads per core. It runs at a base clock of 4.00 GHz and boosts up to 5.00 GHz.

The Intel Core i9-9900KS is a desktop processor, belongs to the Intel Core i9 family, uses the Coffee Lake architecture, carries the codename Coffee Lake and is manufactured on a 14 nm process. It launched in Oct 2019.

The Intel Core i9-9900KS has 512 KB of L1 cache, 2 MB of L2 cache and 16 MB of L3 cache. That adds up to about 18.5 MB of cache, or 2.31 MB per core. Each core has 256 KB of private L2 cache.

The Intel Core i9-9900KS has a 3-level cache hierarchy: L1 at 512 KB, L2 at 2 MB and L3 at 16 MB. L3 is the largest level and makes up about 86% of the cache listed here.

The Intel Core i9-9900KS supports DDR4 memory, addresses up to 128 GB of memory and uses 2 memory channels. It does not support DDR5 and LPDDR memory.

The Intel Core i9-9900KS includes integrated graphics (Intel UHD Graphics 630) and clocks the graphics up to 1.20 GHz.

The Intel Core i9-9900KS uses the FCLGA1151 socket, supports PCI Express 3.0 and provides up to 16 PCIe lanes.

The Intel Core i9-9900KS has a rated TDP of 127 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Core i9-9900KS is manufactured by Intel. It launched at a price of $524.

The Intel Core i9-9900KS is also identified by the model number i9-9900KS.

Feex has recorded 62% of the specifications it tracks for the Intel Core i9-9900KS. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth, ECC Memory and Max Memory Speed. Graphics: Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number.

Processors that use the same FCLGA1151 socket as the Intel Core i9-9900KS and have the closest multi-core scores in the Feex database include Intel Core i9-9900K, Intel Core i9-9900KF, Intel Xeon E-2288G, Intel Core i9-9900 and Intel Xeon E-2278GE.