Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Opteron 4376 HE Core 2 Quad Q9400 2.66GHz
Cyberpunk 2077 52% 101%
Red Dead Redemption 2 78% 136%
Dragon Ball Z Kakarot 35% 79%
Halo: Reach 26% 2%
Microsoft Flight Simulator 94% 157%
Call of Duty: Modern Warfare 32% 75%
FIFA 20 28% 69%
Doom Eternal 47% 94%
Grand Theft Auto VI 142% 221%
Need For Speed Heat 51% 100%

In terms of overall gaming performance, the AMD Opteron 4376 HE 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 4376 HE was released over three years more recently than the Core 2 Quad, and so the Opteron 4376 HE 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 4376 HE 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 4376 HE, 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 4376 HE 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 Core 2 Quad has a 0.06 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 Core 2 Quad has a 5144 KB bigger L2 cache than the Opteron 4376 HE, and although the Core 2 Quad does not appear to have an L3 cache, its larger L2 cache means that it wins out 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 Opteron 4376 HE has a 30 Watt lower Maximum TDP than the Core 2 Quad, and was created with a 13 nm smaller manufacturing technology. What this means is the Opteron 4376 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 Codename-Yorkfield
MoBo SocketSocket AM2+LGA 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 Speed2.6 GHzvs2.66 GHz
Turbo Frequency-vs-
System Bus 6400 MHzvs-
Max TDP65 Wvs95 W
Lithography32 nmvs45 nm
Bit Width-vs64 Bit
Max Temperature68°Cvs71°C
Virtualization Technologyyesvsno
Comparison

CPU Cache and Memory

L1 Cache Size48 KBvs256 KB
L1 Cache Count8vs-
L2 Cache Size1000 KBvs6144 KB
L2 Cache Count8vs-
L2 Cache Speed2600 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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