Core i9-9900KS vs Core i3-8100
Aggregate performance score
i9-9900KS outperforms i3-8100 by a whopping 219% based on our aggregate benchmark results.
Primary details
Comparing Core i3-8100 and Core i9-9900KS processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1387 | 578 |
| Place by popularity | 76 | not in top-100 |
| Cost-effectiveness evaluation | 5.18 | 10.74 |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Core i3 | Intel Core i9 |
| Architecture codename | Coffee Lake (2017−2019) | Coffee Lake-R (2018−2019) |
| Release date | 24 September 2017 (6 years ago) | 26 May 2019 (5 years ago) |
| Launch price (MSRP) | $117 | $513 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i9-9900KS has 107% better value for money than i3-8100.
Detailed specifications
Core i3-8100 and Core i9-9900KS basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 8 (Octa-Core) |
| Threads | 4 | 16 |
| Base clock speed | 3.6 GHz | 4 GHz |
| Boost clock speed | 3.6 GHz | 4 GHz |
| Bus support | 4 × 8 GT/s | 4 × 8 GT/s |
| L1 cache | 256 KB | 512 KB |
| L2 cache | 1 MB | 2 MB |
| L3 cache | 6 MB (shared) | 16 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | 126 mm2 | 178 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 72 °C | 72 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Core i3-8100 and Core i9-9900KS compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 (Uniprocessor) | 1 (Uniprocessor) |
| Socket | 1151 | FCLGA1151 |
| Power consumption (TDP) | 65 Watt | 127 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i3-8100 and Core i9-9900KS. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Hyper-Threading Technology | no data | + |
| TSX | no data | + |
| SIPP | no data | + |
Security technologies
Core i3-8100 and Core i9-9900KS technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i3-8100 and Core i9-9900KS are enumerated here.
| AMD-V | no data | + |
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i3-8100 and Core i9-9900KS. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Dual-channel | DDR4 |
| Maximum memory size | 64 GB | 128 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 38.397 GB/s | 42.671 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 630 | Intel UHD Graphics 630 |
Peripherals
Specifications and connection of peripherals supported by Core i3-8100 and Core i9-9900KS.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 16 | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Core i9-9900KS outperforms Core i3-8100 by 219% based on our aggregate benchmark results.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Core i9-9900KS outperforms Core i3-8100 by 219% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 41%
Core i9-9900KS outperforms Core i3-8100 by 43% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 41%
Core i9-9900KS outperforms Core i3-8100 by 152% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 3.95 | 12.60 |
| Recency | 24 September 2017 | 26 May 2019 |
| Physical cores | 4 | 8 |
| Threads | 4 | 16 |
| Power consumption (TDP) | 65 Watt | 127 Watt |
i3-8100 has 95.4% lower power consumption.
i9-9900KS, on the other hand, has a 219% higher aggregate performance score, an age advantage of 1 year, and 100% more physical cores and 300% more threads.
The Core i9-9900KS is our recommended choice as it beats the Core i3-8100 in performance tests.
Should you still have questions on choice between Core i3-8100 and Core i9-9900KS, ask them in Comments section, and we shall answer.
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