Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Core 2 Duo U2400 1.06GHz Athlon XP Mobile 1900+
Cyberpunk 2077 1537% 2572%
Assassins Creed: Valhalla 2104% 3497%
Call of Duty: Black Ops Cold War 1487% 2489%
FIFA 21 1431% 2399%
Microsoft Flight Simulator 1755% 2927%
Watch Dogs Legion 2104% 3497%
World of Warcraft: Shadowlands 2445% 4054%
Grand Theft Auto VI 2591% 4292%
Genshin Impact 1140% 1923%
Horizon: Zero Dawn 1755% 2927%

In terms of overall gaming performance, the Intel Core 2 Duo U2400 1.06GHz is very slightly better than the AMD Athlon XP Mobile 1900+ 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 2 Duo was released over three years more recently than the Athlon XP Mobile, and so the Core 2 Duo is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Athlon XP 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 2 Duo has 1 more core than the Athlon XP Mobile. However, while the Core 2 Duo will probably perform better than the Athlon XP Mobile, both CPUs are likely to struggle with the latest games, and will almost certainly bottleneck high-end graphics cards. Both CPUs also have quite low clock frequencies, which means recent games will have to be played at low settings, assuming you own an equivalently powerful GPU.

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 2 Duo and Athlon XP 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 Athlon XP Mobile has a 0.54 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 Core 2 Duo.

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 2 Duo has a 1792 KB bigger L2 cache than the Athlon XP Mobile, but neither of the CPUs have L3 caches, so the Core 2 Duo 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 2 Duo has a 59 Watt lower Maximum TDP than the Athlon XP Mobile, and was created with a 115 nm smaller manufacturing technology. What this means is the Core 2 Duo 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 CodenameYonahPalomino (Model 6)
MoBo SocketSocket 479Socket 462/Socket A
Notebook CPUyesyes
Release Date05 Feb 200905 Nov 2001
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores2vs1
Clock Speed1.06 GHzvs1.6 GHz
Turbo Frequency-vs-
System Bus 533 MHzvs-
Max TDP9 Wvs68 W
Lithography65 nmvs180 nm
Bit Width32 Bitvs-
Voltage Range0.8-1.1V KBvs-
Virtualization Technologyyesvsno
Comparison

CPU Cache and Memory

L1 Cache Size64 KBvs128 KB
L2 Cache Size2048 KBvs256 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 Size35mm x 35mmvs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewCore 2 is a brand encompassing a range of Intel's consumer 64-bit x86-64 single-, dual-, and quad-core microprocessors based on the Core microarchitecture. The single- and dual-core models are single-die, whereas the quad-core models comprise two dies, each containing two cores, packaged in a multi-chip module. The introduction of Core 2 relegated the Pentium brand to the mid-range market, and reunified laptop and desktop CPU lines, which previously had been divided into the Pentium 4, Pentium D, and Pentium M brands.
The Core microarchitecture returned to lower clock rates and improved the usage of both available clock cycles and power when compared with the preceding NetBurst microarchitecture of the Pentium 4/D-branded CPUs. The Core microarchitecture provides more efficient decoding stages, execution units, caches, and buses, reducing the power consumption of Core 2-branded CPUs while increasing their processing capacity. Intel's CPUs have varied widely in power consumption according to clock rate, architecture, and semiconductor process, shown in the CPU power dissipation tables.
The Athlon made its debut on June 23, 1999. Athlon is the ancient Greek word for Champion/trophy of the games.
Athlon is the brand name applied to a series of x86-compatible microprocessors designed and manufactured by Advanced Micro Devices (AMD). The original Athlon (now called Athlon Classic) was the first seventh-generation x86 processor and retained the initial performance lead it had over Intel's competing processors for a significant period of time. The original Athlon also had the distinction of being the first desktop processor to reach speeds of one gigahertz (GHz). AMD has continued using the Athlon name with the Athlon 64, an eighth-generation processor featuring x86-64 (later renamed AMD64) architecture, and the Athlon II.