Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Celeron M ULV 423 1.06GHz Turion 64 Mobile MT-40
Cyberpunk 2077 3731% 1752%
Call of Duty Warzone 3243% 1516%
Grand Theft Auto VI 6448% 3065%
Assassins Creed: Valhalla 4728% 2233%
Maneater 3731% 1752%
Valorant 2209% 1016%
Saints Row 3 Remastered 4708% 2224%
Mount and Blade 2: Bannerlord 5973% 2835%
Doom Eternal 5264% 2493%
Mafia 2: Definitive Edition 3609% 1693%

In terms of overall gaming performance, the AMD Turion 64 Mobile MT-40 is very slightly better than the Intel Celeron M ULV 423 1.06GHz 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 ULV was released less than a year after the Turion 64 Mobile, and so they are likely to have similar levels of support, and similarly optimized performance 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 ULV and the Turion 64 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 ULV and the Turion 64 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 ULV and Turion 64 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 Turion 64 Mobile has a 1.14 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 Turion 64 Mobile has a 1023 KB bigger L2 cache than the Celeron M ULV, but neither of the CPUs have L3 caches, so the Turion 64 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 Turion 64 Mobile has a 30 Watt lower Maximum TDP than the Celeron M ULV. However, the Celeron M ULV was created with a 25 nm smaller manufacturing technology. Overall, by taking both into account, the Celeron M ULV is likely the CPU with the lower heat production and power requirements, by a small amount.

CPU Core Details

CPU Codename-Lancaster
MoBo SocketSocket 479Socket 754
Notebook CPUyesyes
Release Date01 Jul 200622 Aug 2005
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
Clock Speed1.06 GHzvs2.2 GHz
Turbo Frequency-vs-
System Bus 533 MHzvs-
Max TDP55 Wvs25 W
Lithography65 nmvs90 nm
Bit Width32 Bitvs-
Voltage Range0.85V-1.10V KBvs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size-vs128 KB
L2 Cache Size1 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 Size35mm x 35mmvs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewMerom is the code name for various Intel processors that are sold as Core 2 Duo, Core 2 Solo, Pentium Dual-Core and Celeron. It was the first mobile processor to be based on the Core microarchitecture, replacing the Enhanced Pentium M based Yonah processor. Merom has product code 80537, which is shared with Merom-2M and Merom-L that are very similar but have a smaller L2 cache. Merom-L has only one processor core and a different CPUID model. The desktop version of Merom is Conroe and the dual-socket server version is Woodcrest. Merom has subsequently been replaced by Penryn.AMD Turion is the brand name AMD applies to its 64-bit low-power consumption (mobile) processors codenamed K8L. The Turion 64 and Turion 64 X2/Ultra processors compete with Intel's mobile processors, initially the Pentium M and the Intel Core and Intel Core 2 processors.