Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Celeron M LV 400MHz Pentium 4 Mobile 2.8GHz
Cyberpunk 2077 10018% 2503%
Hitman 3 13521% 3404%
Resident Evil 8 11136% 2790%
Assassins Creed: Valhalla 13521% 3404%
FIFA 21 9363% 2334%
Grand Theft Auto VI 16529% 4177%
Call of Duty: Black Ops Cold War 9704% 2422%
Genshin Impact 7561% 1871%
Far Cry 6 15862% 4006%
The Medium 17260% 4365%

In terms of overall gaming performance, the Intel Pentium 4 Mobile 2.8GHz is very slightly better than the Intel Celeron M LV 400MHz 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 LV was released over three years more recently than the Pentium 4 Mobile, and so the Celeron M LV is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Pentium 4 Mobile 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 LV and the Pentium 4 Mobile 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 LV and the Pentium 4 Mobile 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 LV and Pentium 4 Mobile 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 Pentium 4 Mobile has a 2.4 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 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 Pentium 4 Mobile has a 896 KB bigger L2 cache than the Celeron M LV, but neither of the CPUs have L3 caches, so the Pentium 4 Mobile 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 Celeron M LV has a 23 Watt lower Maximum TDP than the Pentium 4 Mobile. However, the Pentium 4 Mobile was created with a 90 nm smaller manufacturing technology. Overall, by taking both into account, the Pentium 4 Mobile is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameTualatinPrescott
MoBo SocketSocket 479Socket 478/Socket N
Notebook CPUyesyes
Release Date09 Jan 201101 Jun 2004
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
Clock Speed0.4 GHzvs2.8 GHz
Turbo Frequency-vs-
System Bus 100 MHzvs-
Max TDP65 Wvs88 W
Lithography180 nmvs90 nm
Bit Width32 Bitvs-
Voltage Range1.35V KBvs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size-vs16 KB
L2 Cache Size128 KBvs1024 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 Size27.2mm x 31mmvs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThese Celeron processors, released initially at 1.2 GHz on 2 October 2001, were based on the Pentium III 'Tualatin' core and made with a 0.13 micrometer process for the FCPGA 2 socket 370. They were nicknamed 'Tualeron' — a portmanteau of the words Tualatin and Celeron. Some software and users refer to the chips as Celeron-S, referring to the chip's lineage with the Pentium III-S, but this is not an official designation. Intel later released 1 GHz and 1.1 GHz parts (which were given the extension A to their name to differentiate them from the Coppermine-128 of the same clock rate they replaced). A 1.3 GHz chip, launched 4 January 2002, and finally a 1.4 GHz chip, launched 15 May 2002 (the same day as the 1.7 GHz Willamett-based Celeron launch), marked the end of the Tualatin-256 line.The Mobile Intel Pentium 4 Processor was released to address the problem of putting a full desktop Pentium 4 processor into a laptop, which some manufacturers were doing. The Mobile Pentium 4 used a 533 MHz FSB, following the desktop Pentium 4's evolution. Oddly, increasing the bus speed by 133 MHz (33 MHz core) caused a massive increase in TDPs, as mobile Pentium 4 processors gave off 59.8 W - 70 W of heat, with the Hyper-Threading variants giving off 66.1 W - 88 W. This allowed the mobile Pentium 4 to bridge the gap between the desktop Pentium 4 (giving off 115 W maximum), and the Pentium 4-M (giving off 35 W maximum).