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Gaming Performance Comparison

Recommended System Requirements
Game Core i3-8100F 4-Core 3.6GHz Pentium III 650MHz
Cyberpunk 2077 28% 10762%
Hyper Scape 4% 8693%
Assassins Creed: Valhalla 28% 10762%
Far Cry 6 44% 12147%
Valorant 39% 5095%
Horizon: Zero Dawn 4% 8693%
Watch Dogs Legion 2% 8521%
Death Stranding 12% 9383%
Grand Theft Auto VI 50% 12659%
Microsoft Flight Simulator 4% 8693%

In terms of overall gaming performance, the Intel Core i3-8100F 4-Core 3.6GHz is massively better than the Intel Pentium III 650MHz when it comes to running the latest games. This also means it will be less likely to bottleneck more powerful GPUs, allowing them to achieve more of their gaming performance potential.

The Core i3-8100F 4-Core was released over three years more recently than the Pentium III 650MHz, and so the Core i3-8100F 4-Core is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Pentium III 650MHz when running the latest games.

The Core i3-8100F 4-Core has 3 more cores than the Pentium III 650MHz. With 4 cores, the Core i3-8100F 4-Core is much less likely to struggle with the latest games, or bottleneck high-end graphics cards when running them.

More important for gaming than the number of cores and threads is the clock rate. Problematically, unless the two CPUs are from the same family, this can only serve as a general guide and nothing like an exact comparison, because the clock cycles per instruction (CPI) will vary so much.

The Core i3-8100F 4-Core and Pentium III 650MHz are not from the same family of CPUs, so their clock speeds are by no means directly comparable. Bear in mind, then, that while the Core i3-8100F 4-Core has a 2.95 GHz faster frequency, this is not always an indicator that it will be superior in performance, despite frequency being crucial when trying to avoid GPU bottlenecking. In this case, however, the difference is probably a good indicator that the Core i3-8100F 4-Core is superior.

Aside from the clock rate, the next-most important CPU features for PC game performance are L2 and L3 cache size. Faster than RAM, the more cache available, the more data that can be stored for lightning-fast retrieval. L1 Cache is not usually an issue anymore for gaming, with most high-end CPUs eking out about the same L1 performance, and L2 is more important than L3 - but L3 is still important if you want to reach the highest levels of performance. Bear in mind that although it is better to have a larger cache, the larger it is, the higher the latency, so a balance has to be struck.

The Core i3-8100F 4-Core has a 768 KB bigger L2 cache than the Pentium III 650MHz, and although the Pentium III 650MHz does not appear to have an L3 cache, its larger L2 cache means that it wins out in this area.

The maximum Thermal Design Power is the power in Watts that the CPU will consume in the worst case scenario. The lithography is the semiconductor manufacturing technology being used to create the CPU - the smaller this is, the more transistors that can be fit into the CPU, and the closer the connections. For both the lithography and the TDP, it is the lower the better, because a lower number means a lower amount of power is necessary to run the CPU, and consequently a lower amount of heat is produced.

The Pentium III 650MHz has a 48 Watt lower Maximum TDP than the Core i3-8100F 4-Core. However, the Core i3-8100F 4-Core was created with a 166 nm smaller manufacturing technology. Overall, by taking both into account, the Core i3-8100F 4-Core is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameCoffee Lake SCoppermine
MoBo SocketLGA 1151Socket 370
Notebook CPUnono
Release Date07 Jan 201901 Apr 2001
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs1
CPU Threads4vs-
Clock Speed3.6 GHzvs0.65 GHz
Turbo Frequency-vs-
System Bus -vs100 MHz
Max TDP65 Wvs17 W
Lithography14 nmvs180 nm
Bit Width64 Bitvs32 Bit
Voltage Range-vs1.7V KB
Max Temperature100°Cvs82°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs32 KB
L2 Cache Size1024 KBvs256 KB
L2 Cache Speed-vs-
L3 Cache Size6 MBvs-
Max Memory Size-vs-
Memory Channels-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphics
Base GPU Frequency-vs-
Max GPU Frequency-vs-
DirectX-vs-
Displays Supported-vs-
Comparison

CPU Package and Version Specifications

Package Size126 mm˛vs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe Intel Core i3-8100F 4-Core 3.6GHz is a low-end power efficient CPU based on Intel's 8th Gen 14nm Coffee Lake S microarchitecture. It offers 4 physical cores (4 logical), initially clocked at 3.6GHz across all four cores. It is identical to the Core i3-8100 minus the integrated graphics chip. The i3-8100F doesn't have an unlocked multiplier, therefore, it can't be overclocked using traditional methods. It has 6MB of L3 Cache. Level 3 cache is a static memory bank of a processor and it is used to feed it instructions. The Core i3-8000T has support for up to 64GB of dual-channel DDR4-2400 memory. It has a maximum Thermal Power Design of 65W. It is on par with competitor processors. Among its many features are Intel Enhanced Speedstep, Turbo Boost 2.0, Virtualization, SSE3, AVX2 and SSE 4.2. This CPU is likely to offer below average computational performance and will be a bottleneck in some of the most CPU-intensive AAA games from 2019 onward.The Pentium III brand refers to Intel's 32-bit x86 desktop and mobile microprocessors based on the sixth-generation P6 microarchitecture introduced on February 26, 1999. The brand's initial processors were very similar to the earlier Pentium II-branded microprocessors. The most notable difference was the addition of the SSE instruction set (to accelerate floating point and parallel calculations), and the introduction of a controversial serial number embedded in the chip during the manufacturing process.