Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Opteron 4284 APU A8-3820 Quad-Core
Cyberpunk 2077 31% 77%
Hitman 3 76% 139%
Assassins Creed: Valhalla 76% 139%
Call of Duty: Black Ops Cold War 27% 72%
FIFA 21 23% 66%
Grand Theft Auto VI 115% 191%
Far Cry 6 107% 180%
Genshin Impact 1% 34%
World of Warcraft: Shadowlands 104% 175%
Battlefield 6 83% 148%

In terms of overall gaming performance, the AMD Opteron 4284 is massively better than the AMD APU A8-3820 Quad-Core 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 APU A8-3820 Quad-Core was released less than a year after the Opteron 4284, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

Both CPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings (assuming they are accompanied by equivalently powerful GPUs).

The Opteron 4284 has 4 more cores than the APU A8-3820 Quad-Core. 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 APU A8-3820 Quad-Core is more than enough for gaming purposes. However, if you intend on running a server with the Opteron 4284, 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 4284 and APU A8-3820 Quad-Core 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 4284 has a 0.5 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 4284.

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 APU A8-3820 Quad-Core has a 3096 KB bigger L2 cache than the Opteron 4284, and although the APU A8-3820 Quad-Core 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 APU A8-3820 Quad-Core has a 30 Watt lower Maximum TDP than the Opteron 4284 (though they were created with the same size 32 nm manufacturing technology). What this means is the APU A8-3820 Quad-Core 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).

The APU A8-3820 Quad-Core 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 4284, 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 Radeon HD 6550D, 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 CodenameValenciaLlano
MoBo SocketSocket C32Socket FM1
Notebook CPUnono
Release Date14 Nov 201101 Jan 2012
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores8vs4
CPU Threads-vs4
Clock Speed3 GHzvs2.5 GHz
Turbo Frequency-vs2.8 GHz
System Bus 3200 MHzvs-
Max TDP95 Wvs65 W
Lithography32 nmvs32 nm
Bit Width-vs64 Bit
Max Temperature70°Cvs73°C
Virtualization Technologyyesvsno
Comparison

CPU Cache and Memory

L1 Cache Size48 KBvs256 KB
L1 Cache Count8vs-
L2 Cache Size1000 KBvs4096 KB
L2 Cache Count8vs-
L2 Cache Speed3000 MHzvs-
L3 Cache Size8 MBvs-
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsRadeon HD 6550D
Base GPU Frequency-vs600 MHz
Max GPU Frequency-vs-
DirectX-vs11
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.APU A8-3820 Quad-Core is a performance CPU based on the 32nm, Lynx architecture.

It offers 4 Physical Cores (4 Logical), initially clocked at 2.5GHz, which may go up to 2.8GHz and 4MB of L2 Cache.

The processor integrates mildly powerful Graphics called Radeon HD 6550D, with 400 Shader Processing Units, clocked at 600MHz, which share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 65W.

It is a powerful Quad Core whose performance is good. It's thus capable of running most applications smoothly without any problem.

Vendor-Specific Features

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