Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Opteron 4174 HE Celeron G555 2.7GHz
Hitman 3 171% 388%
Cyberpunk 2077 101% 262%
Assassins Creed: Valhalla 171% 388%
Resident Evil 8 123% 302%
FIFA 21 88% 239%
Grand Theft Auto VI 230% 495%
Call of Duty: Black Ops Cold War 95% 251%
Genshin Impact 52% 174%
Far Cry 6 217% 471%
The Medium 245% 521%

In terms of overall gaming performance, the AMD Opteron 4174 HE is massively better than the Intel Celeron G555 2.7GHz 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 G555 2.7GHz was released less than a year after the Opteron 4174 HE, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The Opteron 4174 HE has 4 more cores than the Celeron G555 2.7GHz. With 6 cores, the Opteron 4174 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 4174 HE and Celeron G555 2.7GHz 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 Celeron G555 2.7GHz has a 0.4 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 4174 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 Opteron 4174 HE and the Celeron G555 2.7GHz have the same L2 cache size, but the Opteron 4174 HE has a 4 MB bigger L3 cache, so in this area, it wins out over the Celeron G555 2.7GHz.

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 4174 HE and the Celeron G555 2.7GHz have the same TDP of 65 Watts, but the Celeron G555 2.7GHz has a lower lithography size, and so will affect your yearly electricity bills less adversely.

CPU Core Details

CPU CodenameLisbonSandy Bridge
MoBo SocketSocket C32LGA 1155/Socket H2
Notebook CPUnono
Release Date23 Jun 201002 Sep 2012
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores6vs2
Clock Speed2.3 GHzvs2.7 GHz
Turbo Frequency-vs-
System Bus 3200 MHzvs-
Max TDP65 Wvs65 W
Lithography45 nmvs32 nm
Bit Width-vs-
Voltage Range1.1875 V KBvs-
Max Temperature55°Cvs-
Virtualization Technologyyesvsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L1 Cache Count6vs-
L2 Cache Size512 KBvs512 KB
L2 Cache Count6vs-
L2 Cache Speed2300 MHzvs-
L3 Cache Size6 MBvs2 MB
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.Sandy Bridge is the codename for a microarchitecture developed by Intel beginning in 2005 for central processing units in computers to replace the Nehalem microarchitecture. Intel demonstrated a Sandy Bridge processor in 2009, and released first products based on the architecture in January 2011 under the Core brand.

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