Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Athlon II M300 Dual-Core Athlon Neo X2 Dual Core L325
Hitman 3 941% 1406%
Cyberpunk 2077 674% 1019%
Assassins Creed: Valhalla 941% 1406%
Resident Evil 8 759% 1142%
FIFA 21 624% 946%
Grand Theft Auto VI 1171% 1739%
Call of Duty: Black Ops Cold War 650% 984%
Genshin Impact 486% 747%
Far Cry 6 1120% 1665%
The Medium 1227% 1819%

In terms of overall gaming performance, the AMD Athlon II M300 Dual-Core is very slightly better than the AMD Athlon Neo X2 Dual Core L325 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 Athlon II M300 was released over a year more recently than the Athlon Neo X2, and so the Athlon II M300 is likely to have better levels of support, and will be more optimized for running the latest games.

The Athlon II M300 and the Athlon Neo X2 both have 2 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 Athlon II M300 and the Athlon Neo X2 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 Athlon II M300 and Athlon Neo X2 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 II M300 has a 0.5 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 .

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 Athlon II M300 and the Athlon Neo X2 have the same L2 cache size, and neither CPU appears to have an L3 cache. They even have the same L1 cache size, so are identical in terms of cache size.

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 Athlon Neo X2 has a 17 Watt lower Maximum TDP than the Athlon II M300. However, the Athlon II M300 was created with a 20 nm smaller manufacturing technology. Overall, by taking both into account, the Athlon II M300 is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameCaspianConesus
MoBo SocketSocket S1g3Socket 812
Notebook CPUyesyes
Release Date10 Sep 201001 Jun 2009
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores2vs2
Clock Speed2 GHzvs1.5 GHz
Turbo Frequency-vs-
Max TDP35 Wvs18 W
Lithography45 nmvs65 nm
Bit Width-vs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs256 KB
L2 Cache Size1024 KBvs1024 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 ReviewThe AMD Athlon II Dual-Core Mobile M300 is an entry level Dual Core CPU by AMD for laptops with an integrated dual channel DDR2 memory controller (400MHz). The core was named Caspian and based on the K10 architecture.
The performance of the Athlon II M300 is comparable to an old Merom 1.8 Ghz Core 2 Duo and can be compared to cheap Celeron Dual Core models by Intel. The Athlon II series has the advantage of Virtualisation and 64-bit processing support
With 27 mm 27 mm in size and 2.5 mm in thickness, the Athlon Neo processors utilize a new package called "ASB1", essentially a BGA package, for smaller footprint to allow smaller designs for notebooks and lowering the cost. The clock of the processors is significantly lower than desktop and other mobile counterparts to reach a low TDP, at 15W maximum for a single core x86-64 CPU at 1.6 GHz. The Athlon Neo processors are equipped with 512 KB of L2 cache and HyperTransport 1.0 running at 800 MHz frequency.