Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Pentium G3420T 2.7GHz Opteron 2381 HE
Cyberpunk 2077 117% 163%
Assassins Creed: Valhalla 192% 254%
Call of Duty: Black Ops Cold War 110% 155%
FIFA 21 103% 146%
Microsoft Flight Simulator 146% 198%
Watch Dogs Legion 192% 254%
World of Warcraft: Shadowlands 237% 309%
Horizon: Zero Dawn 146% 198%
Grand Theft Auto VI 257% 332%
Genshin Impact 64% 99%

In terms of overall gaming performance, the Intel Pentium G3420T 2.7GHz is noticeably better than the AMD Opteron 2381 HE 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 Pentium G3420T 2.7GHz was released over three years more recently than the Opteron 2381 HE, and so the Pentium G3420T 2.7GHz is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Opteron 2381 HE when running the latest games.

The Opteron 2381 HE has 2 more cores than the Pentium G3420T 2.7GHz. 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 Pentium G3420T 2.7GHz and Opteron 2381 HE 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 Pentium G3420T 2.7GHz has a 0.2 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 Pentium G3420T 2.7GHz and the Opteron 2381 HE have the same L2 cache size, but the Opteron 2381 HE has a 3 MB bigger L3 cache, so in this area, it wins out over the Pentium G3420T 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.

The Pentium G3420T 2.7GHz has a 20 Watt lower Maximum TDP than the Opteron 2381 HE, and was created with a 23 nm smaller manufacturing technology. What this means is the Pentium G3420T 2.7GHz will consume slightly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill slightly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

The Pentium G3420T 2.7GHz has an on-board GPU, which means that it will be capable of running basic graphics applications (i.e., games) without the need for a dedicated graphics card. The Opteron 2381 HE, however, does not, and you will probably have to look for a dedicated card if you wish to use it at all.

For in-depth GPU comparisons with the Intel HD Graphics Desktop (Haswell), click on the following GPU overview comparison icon (visible throughout Game-Debate), and choose a GPU from the list to compare against:

On-board GPUs tend to be fairly awful in comparison to dedicated cards from the likes of AMD or Nvidia, but as they are built into the CPU, they also tend to be cheaper and require far less power to run (this makes them a good choice for laptops). We would recommend a dedicated card for running the latest games, but integrated GPUs are improving all the time and casual gamers may find less recent games perform perfectly acceptably.

CPU Core Details

CPU CodenameHaswellShanghai
MoBo SocketSocket 1150 / H3 / LGA1150Socket F
Notebook CPUnono
Release Date01 Sep 201322 Apr 2009
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores2vs4
CPU Threads2vs-
Clock Speed2.7 GHzvs2.5 GHz
Turbo Frequency-vs-
System Bus -vs2000 MHz
Max TDP35 Wvs55 W
Lithography22 nmvs45 nm
Bit Width64 Bitvs-
Voltage Range-vs1.325V KB
Max Temperature66°Cvs55°C
Virtualization Technologynovsyes
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L1 Cache Count-vs4
L2 Cache Size512 KBvs512 KB
L2 Cache Count-vs4
L2 Cache Speed-vs2500 MHz
L3 Cache Size3 MBvs6 MB
Max Memory Size-vs-
Memory Channels-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsIntel HD Graphics Desktop (Haswell)
Base GPU Frequency650 MHzvs-
Max GPU Frequency1250 MHzvs-
DirectX11.1vs-
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 ReviewPentium G3420T 2.7GHz is an energy efficient budget processor based on the 22nm, Haswell architecture.

It offers 2 Physical Cores (2 Logical), clocked at 2.7GHz and 3MB of L3 Cache.
Among its many features, Virtualization is activated.

The processor integrates very weak Graphics called Intel HD Graphics Desktop (Haswell), with 10 Execution Units, initially clocked at 200MHz and that go up to 1100MHz, in Turbo Mode which share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 35W.

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

Vendor-Specific Features

Intel Quick Sync VideoAMD Power Management
Intel InTru 3DAMD Business Class
Intel InsiderAMD Black Edition
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