Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Opteron 2381 HE Phenom II X2 550
Cyberpunk 2077 163% 240%
Assassins Creed: Valhalla 254% 357%
Call of Duty: Black Ops Cold War 155% 229%
Watch Dogs Legion 254% 357%
FIFA 21 146% 218%
Microsoft Flight Simulator 198% 285%
Godfall 408% 556%
Grand Theft Auto VI 332% 458%
World of Warcraft: Shadowlands 309% 428%
Genshin Impact 99% 157%

In terms of overall gaming performance, the AMD Opteron 2381 HE is noticeably better than the AMD Phenom II X2 550 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 Phenom II X2 was released less than a year after the Opteron 2381 HE, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The Opteron 2381 HE has 2 more cores than the Phenom II X2. With 4 cores, the Opteron 2381 HE is much less likely to struggle with the latest games, or bottleneck high-end graphics cards when running them.

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 Opteron 2381 HE and Phenom II 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 Phenom II X2 has a 0.6 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 Opteron 2381 HE.

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 Phenom II X2 has a 512 KB bigger L2 cache than the Opteron 2381 HE, and the two CPUs have the same L3 cache size, so the Phenom II X2 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 Opteron 2381 HE has a 25 Watt lower Maximum TDP than the Phenom II X2 (though they were created with the same size 45 nm manufacturing technology). What this means is the Opteron 2381 HE 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 CodenameShanghaiCallisto
MoBo SocketSocket FSocket AM2+ / AM3
Notebook CPUnono
Release Date22 Apr 200904 Nov 2009
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs2
CPU Threads-vs2
Clock Speed2.5 GHzvs3.1 GHz
Turbo Frequency-vs-
System Bus 2000 MHzvs-
Max TDP55 Wvs80 W
Lithography45 nmvs45 nm
Bit Width-vs64 Bit
Voltage Range1.325V KBvs-
Max Temperature55°Cvs70°C
Virtualization Technologyyesvsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs256 KB
L1 Cache Count4vs-
L2 Cache Size512 KBvs1024 KB
L2 Cache Count4vs-
L2 Cache Speed2500 MHzvs-
L3 Cache Size6 MBvs6 MB
Memory Channels-vs2
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 Size-vs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewOpteron is AMD's x86 server and workstation processor line, and was the first processor to implement the AMD64 instruction set architecture (known generically as x86-64). It was released on April 22, 2003 with the SledgeHammer core (K8) and was intended to compete in the server and workstation markets, particularly in the same segment as the Intel Xeon processor. Processors based on the AMD K10 microarchitecture (codenamed Barcelona) were announced on September 10, 2007 featuring a new quad-core configuration. The most-recently released Opteron CPUs are the 8- and 12-core Socket G34 Opterons, code-named Magny-Cours.Phenom II X2 550 is a middle-class processor based on the 45nm, K10 architecture.

It offers 2 Physical Cores (2 Logical), clocked at 3.1GHz and 6MB of L3 Cache.
Among its many features, Virtualization is activated.

The processor DOES NOT integrate any graphics. and has a rated board TDP of 80W.

It offers average performance. This means it will become a bottleneck in some demanding applications.

Vendor-Specific Features

AMD Power ManagementAMD Power Management
AMDBusiness ClassAMD Business Class
AMD Black EditionAMD Black Edition