Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Opteron 4386 Core 2 Quad Q9400 2.66GHz
Red Dead Redemption 2 47% 105%
Halo: Reach 30% 2%
Cyberpunk 2077 44% 101%
Call of Duty: Modern Warfare 26% 75%
Doom Eternal 39% 94%
Microsoft Flight Simulator 81% 153%
Grand Theft Auto VI 130% 221%
Dragon Ball Z Kakarot 28% 79%
Star Wars: Jedi - Fallen Order 101% 181%
Need For Speed Heat 43% 100%

In terms of overall gaming performance, the AMD Opteron 4386 is massively better than the Intel Core 2 Quad Q9400 2.66GHz 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 Opteron 4386 was released over three years more recently than the Core 2 Quad, and so the Opteron 4386 is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Core 2 Quad when running the latest games.

The Opteron 4386 has 4 more cores than the Core 2 Quad. 8 cores is probably excessive if you mean to just run the latest games, as games are not yet able to harness this many cores. The cores in the Core 2 Quad is more than enough for gaming purposes. However, if you intend on running a server with the Opteron 4386, it would seem to be a decent choice.

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 4386 and Core 2 Quad 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 Opteron 4386 has a 0.44 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 4386.

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 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.

Both the Opteron 4386 and the Core 2 Quad have the same TDP of 95 Watts, but the Opteron 4386 has a lower lithography size, and so will affect your yearly electricity bills less adversely.

CPU Core Details

CPU Codename-Yorkfield
MoBo SocketSocket C32LGA 775/ Socket T
Notebook CPUnono
Release Date14 Dec 201210 Aug 2008
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores8vs4
CPU Threads-vs4
Clock Speed3.1 GHzvs2.66 GHz
Turbo Frequency-vs-
System Bus 6400 MHzvs-
Max TDP95 Wvs95 W
Lithography-vs45 nm
Bit Width-vs64 Bit
Max Temperature70°Cvs71°C
Virtualization Technologyyesvsno
Comparison

CPU Cache and Memory

L1 Cache Size-vs256 KB
L1 Cache Count8vs-
L2 Cache Size-vs6144 KB
L2 Cache Count8vs-
L2 Cache Speed3100 MHzvs-
L3 Cache Size8192 MBvs-
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.Core 2 Quad Q9400 2.66GHz is a high-end Processor based on the 45nm Core micro-architecture.

It offers 4 Physical Cores (4 Logical), clocked at 2.66GHz and 6MB of L2 Cache.
Among its many features, Virtualization is activated.

The processor DOES NOT integrate any graphics. and has a rated board TDP of 95W.

It offers average performance. It will therefore become a bottleneck in today's demanding games.

Vendor-Specific Features

AMD Power ManagementIntel Quick Sync Video
AMDBusiness ClassIntel InTru 3D
AMD Black EditionIntel Insider
Intel Wireless Display
Intel Flexible Display
Intel Clear Video HD
Intel vPro
Intel Hyper-Threading
Intel Virt. Tech. for Directed I/O
Intel Trusted Execution
AES New Instructions
Intel Anti-Theft
Idle States
Intel SpeedStep
Thermal Monitoring
Execute Disable Bit
Intel VT-x with EPT
Embedded Options

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