Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Core 2 Duo U2400 1.06GHz Celeron M 450 2.0GHz
Cyberpunk 2077 1537% 1683%
Assassins Creed: Valhalla 2104% 2301%
Call of Duty: Black Ops Cold War 1487% 1628%
FIFA 21 1431% 1568%
Microsoft Flight Simulator 1755% 1920%
Watch Dogs Legion 2104% 2301%
World of Warcraft: Shadowlands 2445% 2672%
Horizon: Zero Dawn 1755% 1920%
Grand Theft Auto VI 2591% 2831%
Genshin Impact 1140% 1250%

In terms of overall gaming performance, the Intel Core 2 Duo U2400 1.06GHz is marginally better than the Intel Celeron M 450 2.0GHz 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 a year more recently than the Celeron M 450, and so the Core 2 Duo is likely to have better levels of support, and will be more optimized for 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 Celeron M 450. However, while the Core 2 Duo will probably perform better than the Celeron M 450, 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 the Celeron M 450 are from the same family of CPUs, and thus their clock speeds are directly comparable. With this in mind, it is safe to say that with a 0.94 GHz faster base clock rate, the Celeron M 450 manages to provide significantly better performance than 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 1024 KB bigger L2 cache than the Celeron M 450, but neither of the CPUs have L3 caches, so the Core 2 Duo 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 Core 2 Duo and the Celeron M 450 both have System Bus Speeds of 533 MHz, and so have the same limits 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 Core 2 Duo has a 18 Watt lower Maximum TDP than the Celeron M 450 (though they were created with the same size 65 nm manufacturing technology). What this means is the Core 2 Duo will consume slightly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill slightly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

CPU Core Details

CPU CodenameYonahYonah
MoBo SocketSocket 479Socket M
Notebook CPUyesyes
Release Date05 Feb 200901 Oct 2006
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores2vs1
Clock Speed1.06 GHzvs2 GHz
Turbo Frequency-vs-
System Bus 533 MHzvs533 MHz
Max TDP9 Wvs27 W
Lithography65 nmvs65 nm
Bit Width32 Bitvs32 Bit
Voltage Range0.8-1.1V KBvs1.0V-1.3V KB
Virtualization Technologyyesvsno
Comparison

CPU Cache and Memory

L1 Cache Size64 KBvs64 KB
L2 Cache Size2048 KBvs1024 KB
L2 Cache Speed-vs-
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphics
Base GPU Frequency-vs-
Max GPU Frequency-vs-
DirectX-vs-
Displays Supported-vs-
Comparison

CPU Package and Version Specifications

Package Size35mm x 35mmvs35mm x 35mm
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 Celeron is a family of microprocessors from Intel targeted at the low-end consumer market. CPUs in the Celeron brand have used designs from sixth- to eighth-generation CPU microarchitectures. [Please be aware that GD data is constantly refined as more information and reports are made available.]