Select any two CPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Celeron M ULV 523 930MHz Celeron Mobile 450MHz
Cyberpunk 2077 3235% 69169%
Assassins Creed: Valhalla 4390% 93154%
Call of Duty: Black Ops Cold War 3132% 67023%
FIFA 21 3019% 64685%
Microsoft Flight Simulator 3678% 78362%
World of Warcraft: Shadowlands 5085% 107592%
Watch Dogs Legion 4390% 93154%
Horizon: Zero Dawn 3678% 78362%
Grand Theft Auto VI 5381% 113746%
Genshin Impact 2425% 52346%

In terms of overall gaming performance, the Intel Celeron M ULV 523 930MHz is very slightly better than the Intel Celeron Mobile 450MHz 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 ULV was released over three years more recently than the Celeron Mobile 450MHz, and so the Celeron M ULV is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Celeron Mobile 450MHz 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 ULV and the Celeron Mobile 450MHz 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 ULV and the Celeron Mobile 450MHz 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 ULV and Celeron Mobile 450MHz 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 ULV has a 0.48 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 Celeron Mobile 450MHz has a 127 KB bigger L2 cache than the Celeron M ULV, but neither of the CPUs have L3 caches, so the Celeron Mobile 450MHz wins out in this area with its larger L2 cache.

The System Bus Speed is important for providing higher bandwidth, and with higher bandwidth the system has the capacity to move more data over a certain time period than it would with lower bandwidth.

The Celeron M ULV has a 433 MHz faster System Bus Speed than the Celeron Mobile 450MHz, and as such, has a significantly higher limit when it comes to the size of the data being processed at once.

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 Celeron Mobile 450MHz has a 39 Watt lower Maximum TDP than the Celeron M ULV. However, the Celeron M ULV was created with a 115 nm smaller manufacturing technology. Overall, by taking both into account, the Celeron M ULV is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU Codename-Coppermine
MoBo SocketSocket PSocket 495
Notebook CPUyesyes
Release Date09 Jan 201130 Mar 2000
CPU LinkGD LinkGD Link

CPU Technical Specifications

CPU Cores1vs1
Clock Speed0.93 GHzvs0.45 GHz
Turbo Frequency-vs-
System Bus 533 MHzvs100 MHz
Max TDP55 Wvs16 W
Lithography65 nmvs180 nm
Bit Width64 Bitvs32 Bit
Voltage Range0.85V-1.10V KBvs1.6V KB
Max Temperature100°Cvs-
Virtualization Technologynovsno

CPU Cache and Memory

L1 Cache Size-vs32 KB
L2 Cache Size1 KBvs128 KB
L2 Cache Speed-vs-
L3 Cache Size-vs-
ECC Memory Supportnovsno

CPU Graphics

Base GPU Frequency-vs-
Max GPU Frequency-vs-
Displays Supported-vs-

CPU Package and Version Specifications

Package Size35mm x 35mmvs-
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 rangeThe next generation Celeron was the 'Coppermine-128' (sometimes known as the Celeron II). These were a derivative of Intel's Coppermine Pentium III and were released on 29 March 2000. Like the Mendocino, the Celeron-128 used 128 KB of on-chip L2 cache and was (initially) restricted to a 66 MHz Front Side Bus Speed, But the big news was the addition of SSE instructions, due to the new Coppermine core. Besides only having half the L2 cache (128 KB instead of 256 KB) and the lower FSB (66-100 MHz instead of 100-133 MHz), the Coppermine Celeron was identical to the Coppermine Pentium III.