Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Core Solo U1400 1.2GHz Pentium 4 Mobile M2.2GHz
Cyberpunk 2077 3298% 3431%
Assassins Creed: Valhalla 4475% 4654%
Call of Duty: Black Ops Cold War 3193% 3322%
FIFA 21 3078% 3203%
Microsoft Flight Simulator 3749% 3900%
Watch Dogs Legion 4475% 4654%
World of Warcraft: Shadowlands 5183% 5390%
Horizon: Zero Dawn 3749% 3900%
Grand Theft Auto VI 5485% 5704%
Genshin Impact 2473% 2574%

In terms of overall gaming performance, the Intel Core Solo U1400 1.2GHz is marginally better than the Intel Pentium 4 Mobile M2.2GHz 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 Core Solo U1400 was released over three years more recently than the Pentium 4 Mobile, and so the Core Solo U1400 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 Core Solo U1400 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 Core Solo U1400 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 Core Solo U1400 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 Core Solo U1400 has a 1536 KB bigger L2 cache than the Pentium 4 Mobile, but neither of the CPUs have L3 caches, so the Core Solo U1400 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 Core Solo U1400 has a 29 Watt lower Maximum TDP than the Pentium 4 Mobile, and was created with a 65 nm smaller manufacturing technology. What this means is the Core Solo U1400 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 CodenameYonahNorthwood
MoBo SocketSocket 479Socket 478/Socket N
Notebook CPUyesyes
Release Date23 Apr 200616 Sep 2002
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
Clock Speed1.2 GHzvs2.2 GHz
Turbo Frequency-vs-
Max TDP6 Wvs35 W
Lithography65 nmvs130 nm
Bit Width-vs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size64 KBvs16 KB
L2 Cache Size2048 KBvs512 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 ReviewYonah was the code name for (the core of) Intel's first generation of 65 nm process mobile microprocessors, based on the Banias/Dothan-core Pentium M microarchitecture. SIMD performance has been improved through the addition of SSE3 instructions and improvements to SSE and SSE2 implementations, while integer performance decreased slightly due to higher latency cache. Additionally, Yonah includes support for the NX bit.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).