Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Sempron 2300+ Pentium III 1133MHz
Cyberpunk 2077 2541% 3902%
Assassins Creed: Valhalla 3455% 5288%
Call of Duty: Black Ops Cold War 2459% 3778%
FIFA 21 2370% 3643%
Microsoft Flight Simulator 2891% 4433%
Watch Dogs Legion 3455% 5288%
World of Warcraft: Shadowlands 4006% 6122%
Grand Theft Auto VI 4240% 6478%
Genshin Impact 1899% 2930%
Horizon: Zero Dawn 2891% 4433%

In terms of overall gaming performance, the AMD Sempron 2300+ is marginally better than the Intel Pentium III 1133MHz 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 Sempron 2300+ was released over three years more recently than the Pentium III 1133MHz, and so the Sempron 2300+ is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Pentium III 1133MHz when running the latest games.

Both CPUs exhibit very poor performance, so rather than upgrading from one to the other you should consider looking at more powerful CPUs. Neither of these will be able to run the latest games in any playable way.

The Sempron 2300+ and the Pentium III 1133MHz both have 1 cores, and so are quite likely to struggle with the latest games, or at least bottleneck high-end graphics cards when running them. With a decent accompanying GPU, the Sempron 2300+ and the Pentium III 1133MHz may still be able to run slightly older games fairly effectively.

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 Sempron 2300+ and Pentium III 1133MHz 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 Sempron 2300+ has a 0.483 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 enough that it possibly indicates the superiority of the .

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 Sempron 2300+ and the Pentium III 1133MHz have the same L2 cache size, and neither CPU appears to have an L3 cache. In this case, the Sempron 2300+ has a 112 KB bigger L1 cache, so would probably provide better performance than the Pentium III 1133MHz, at least 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 1133MHz has a 29 Watt lower Maximum TDP than the Sempron 2300+. However, the Sempron 2300+ was created with a 50 nm smaller manufacturing technology. Overall, by taking both into account, the Sempron 2300+ is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameThoroughbred (Model 8)Tualatin
MoBo SocketSocket 462/Socket ASocket 370
Notebook CPUnono
Release Date28 Jul 200401 Apr 2001
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
Clock Speed1.583 GHzvs1.1 GHz
Turbo Frequency-vs-
System Bus -vs100 MHz
Max TDP62 Wvs33 W
Lithography130 nmvs180 nm
Bit Width-vs32 Bit
Voltage Range-vs1.75V KB
Max Temperature-vs77°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs16 KB
L2 Cache Size256 KBvs256 KB
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsnono

CPU Package and Version Specifications

Package Size-vs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewSempron has been the marketing name used by AMD for several different budget desktop CPUs, using several different technologies and CPU socket formats. The Sempron replaced the AMD Duron processor and competes against Intel's Celeron series of processors. AMD coined the name from the Latin semper, which means always, to suggest the Sempron is suitable for daily use, practical, and part of everyday life.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.