Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Atom D425 1.8GHz Pentium 4 Mobile 2.8GHz
Cyberpunk 2077 2741% 2503%
Hitman 3 3724% 3404%
Assassins Creed: Valhalla 3724% 3404%
Call of Duty: Black Ops Cold War 2653% 2422%
FIFA 21 2557% 2334%
Grand Theft Auto VI 4569% 4177%
Far Cry 6 4381% 4006%
Genshin Impact 2051% 1871%
Battlefield 6 3875% 3542%
Resident Evil 8 3055% 2790%

In terms of overall gaming performance, the Intel Pentium 4 Mobile 2.8GHz is marginally better than the Intel Atom D425 1.8GHz 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 Atom D425 1.8GHz was released over three years more recently than the Pentium 4 Mobile, and so the Atom D425 1.8GHz 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 Atom D425 1.8GHz 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 Atom D425 1.8GHz 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 Atom D425 1.8GHz 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 1 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 512 KB bigger L2 cache than the Atom D425 1.8GHz, 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 Atom D425 1.8GHz has a 78 Watt lower Maximum TDP than the Pentium 4 Mobile, and was created with a 45 nm smaller manufacturing technology. What this means is the Atom D425 1.8GHz will consume significantly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill significantly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

CPU Core Details

CPU CodenamePineviewPrescott
MoBo SocketSocket 559Socket 478/Socket N
Notebook CPUyesyes
Release Date21 Jun 201001 Jun 2004
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
CPU Threads2vs-
Clock Speed1.8 GHzvs2.8 GHz
Turbo Frequency-vs-
Max TDP10 Wvs88 W
Lithography45 nmvs90 nm
Bit Width64 Bitvs-
Voltage Range0.800V-1.175V KBvs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size56 KBvs16 KB
L2 Cache Size512 KBvs1024 KB
L3 Cache Size-vs-
Max Memory Size-vs-
Max Memory Bandwidth-vs-
Memory Channels-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsnono

CPU Package and Version Specifications

Package Size22mm x 22mmvs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewAtom processors are based on the Bonnell microarchitecture. On 21 December 2009, Intel announced the Pine Trail platform, including new Atom processor code-named Pineview (Atom N450), with total kit power consumption down 20%. On 28 December 2011, Intel updated the Atom line with the Cedar processors.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).