Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Celeron M 550 2GHz Pentium M 2.0GHz
Cyberpunk 2077 1537% 1701%
Assassins Creed: Valhalla 2104% 2325%
Call of Duty: Black Ops Cold War 1487% 1645%
FIFA 21 1431% 1584%
Microsoft Flight Simulator 1755% 1940%
Watch Dogs Legion 2104% 2325%
World of Warcraft: Shadowlands 2445% 2700%
Grand Theft Auto VI 2591% 2860%
Genshin Impact 1140% 1264%
Horizon: Zero Dawn 1755% 1940%

In terms of overall gaming performance, the Intel Celeron M 550 2GHz is marginally better than the Intel Pentium M 2.0GHz 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 Celeron M 550 was released over three years more recently than the Pentium M 2.0GHz, and so the Celeron M 550 is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Pentium M 2.0GHz 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 Celeron M 550 and the Pentium M 2.0GHz 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 Celeron M 550 and the Pentium M 2.0GHz 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 Celeron M 550 and Pentium M 2.0GHz 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 Celeron M 550 and the Pentium M 2.0GHz both have the same clock frequency, this is by no means an indicator that the two CPUs will provide the same level of performance. As such, we need to look elsewhere for more reliable comparisons.

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 Pentium M 2.0GHz has a 1024 KB bigger L2 cache than the Celeron M 550, but neither of the CPUs have L3 caches, so the Pentium M 2.0GHz wins out in this area with its larger L2 cache.

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 M 2.0GHz has a 10 Watt lower Maximum TDP than the Celeron M 550. However, the Celeron M 550 was created with a 25 nm smaller manufacturing technology. Overall, by taking both into account, the Celeron M 550 is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameMeromDothan
MoBo SocketSocket PSocket 479
Notebook CPUyesyes
Release Date05 Sep 200710 May 2004
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
Clock Speed2 GHzvs2 GHz
Turbo Frequency-vs-
System Bus -vs400 MHz
Max TDP31 Wvs21 W
Lithography65 nmvs90 nm
Bit Width-vs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size64 KBvs64 KB
L2 Cache Size1024 KBvs2048 KB
L2 Cache Speed-vs-
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

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

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 ReviewThe Celeron brand has been used by Intel for several distinct ranges of x86 CPUs targeted at budget personal computers. Celeron processors can run all IA-32 computer programs, but their performance is somewhat lower when compared to similar CPUs with higher-priced Intel CPU brands. For example, the Celeron brand will often have less cache memory, or have advanced features purposely disabled. These missing features have had a variable impact on performance. In some cases, the effect was significant and in other cases the differences were relatively minor. Many of the Celeron designs have achieved a very high bang for the buck, while at other times, the performance difference has been noticeable. This has been the primary justification for the higher cost of other Intel CPU brands versus the Celeron range.The Pentium M brand refers to a family of mobile single-core x86 microprocessors (with the modified Intel P6 microarchitecture) introduced in March 2003 (during the heyday of the Pentium 4 desktop CPUs), and forming a part of the Intel Carmel notebook platform under the then new Centrino brand. The Pentium M processors had a maximum thermal design power (TDP) of 5?27 W depending on the model, and were intended for use in laptops (thus the 'M' suffix standing for mobile). They evolved from the core of the last Pentium III?branded CPU by adding the front-side bus (FSB) interface of Pentium 4, an improved instruction decoding and issuing front end, improved branch prediction, SSE2 support, and a much larger cache. The first Pentium M?branded CPU, code-named Banias, was followed by Dothan. The Pentium M-branded processors were succeeded by the Core-branded dual-core mobile Yonah CPU with a modified microarchitecture.