Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Celeron M ULV 763 1.4GHz Athlon XP Mobile 1900+
Cyberpunk 2077 3445% 2572%
Assassins Creed: Valhalla 4673% 3497%
Call of Duty: Black Ops Cold War 3335% 2489%
Watch Dogs Legion 4673% 3497%
Godfall 6746% 5060%
FIFA 21 3216% 2399%
Microsoft Flight Simulator 3916% 2927%
Grand Theft Auto VI 5727% 4292%
World of Warcraft: Shadowlands 5412% 4054%
Genshin Impact 2584% 1923%

In terms of overall gaming performance, the AMD Athlon XP Mobile 1900+ is marginally better than the Intel Celeron M ULV 763 1.4GHz 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 over three years more recently than the Athlon XP Mobile, and so the Celeron M ULV 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 Celeron M ULV and the Athlon XP 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 Athlon XP 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 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 0.2 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. As such, we need to look elsewhere for more reliable comparisons.

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 Celeron M ULV and the Athlon XP Mobile have the same L2 cache size, and neither CPU appears to have an L3 cache. In this case, the Athlon XP Mobile has a 64 KB bigger L1 cache, so would probably provide better performance than the Celeron M ULV, at least in this area.

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 Celeron M ULV has a 38 Watt lower Maximum TDP than the Athlon XP Mobile, and was created with a 50 nm smaller manufacturing technology. What this means is the Celeron M ULV 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 CodenamePenrynPalomino (Model 6)
MoBo SocketSocket 956Socket 462/Socket A
Notebook CPUyesyes
Release Date09 Jan 201105 Nov 2001
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
Clock Speed1.4 GHzvs1.6 GHz
Turbo Frequency-vs-
System Bus 400 MHzvs-
Max TDP30 Wvs68 W
Lithography130 nmvs180 nm
Bit Width32 Bitvs-
Voltage Range1.3V KBvs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size64 KBvs128 KB
L2 Cache Size256 KBvs256 KB
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsnono

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 ReviewPenryn is the code name of a processor from Intel that is sold in varying configurations as Core 2 Solo, Core 2 Duo, Core 2 Quad, Pentium and Celeron. During development, Penryn was the Intel code name for the 2007/2008 "Tick" of Intel's Tick-Tock cycle which shrunk Merom to 45 nanometers as CPUID model 23. The term Penryn is sometimes used to refer to all 45 nm chips with the Core architecture. Chips with Penryn architecture come in two sizes, with 6 MiB and 3 MiB L2 cache. Low power versions of Penryn are known as the Penryn processor. The smaller version is commonly called Penryn-3M and is used for the single-core processors. The Penryn-QC quad-cores are made from two chips with two cores and 6 MB of cache per chip. The desktop version of Penryn is Wolfdale and the dual-socket server version is Wolfdale-DP. Penryn-QC is related to Yorkfield on the desktop and Harpertown in servers. The MP server Dunnington chip is a more distant relative based on a different chip but using the same 45 nm Core microarchitecture.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.