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Gaming Performance Comparison

Recommended System Requirements
Game APU A8-3820 Quad-Core APU A6-3670K Quad-Core
Hitman 3 139% 127%
Cyberpunk 2077 77% 68%
Assassins Creed: Valhalla 139% 127%
Resident Evil 8 97% 87%
FIFA 21 66% 58%
Grand Theft Auto VI 191% 177%
Call of Duty: Black Ops Cold War 72% 63%
Genshin Impact 34% 28%
Far Cry 6 180% 166%
The Medium 204% 189%

In terms of overall gaming performance, the AMD APU A6-3670K Quad-Core is very slightly 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 APU A6-3670K Quad-Core, 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 APU A8-3820 Quad-Core and the APU A6-3670K Quad-Core both have 4 cores, which is not likely to be a limiting factor for gaming.

Both the AMD APU A8-3820 Quad-Core and the AMD APU A6-3670K Quad-Core have the same number of threads. Both CPUs have one thread per physical core.

Multiple threads are useful for improving the performance of multi-threaded applications. Additional cores and their accompanying thread will always be beneficial for multi-threaded applications. Hyperthreading will be beneficial for applications optimized for it, but it may slow others down. For games, the number of threads is largely irrelevant, as long as you have at least 2 cores (preferably 4), and hyperthreading can sometimes even hit performance.

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 APU A8-3820 Quad-Core and the APU A6-3670K Quad-Core are from the same family of CPUs, and thus their clock speeds are directly comparable. With this in mind, it is safe to say that with a 0.2 GHz faster base clock rate, the APU A6-3670K Quad-Core manages to provide slightly better performance than the APU A8-3820 Quad-Core. However, the APU A8-3820 Quad-Core manages to eke 0.1 GHz higher frequency when being stressed.

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 and the APU A6-3670K Quad-Core have the same L2 cache size, and neither CPU appears to have an L3 cache. In this case, the APU A6-3670K Quad-Core has a 256 KB bigger L1 cache, so would probably provide better performance than the APU A8-3820 Quad-Core, at least 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 35 Watt lower Maximum TDP than the APU A6-3670K Quad-Core (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 and the APU A6-3670K Quad-Core both have an on-board GPU, which means that they will be capable of running basic graphics applications (i.e., games) without the need for a dedicated graphics card.

For an in-depth GPU comparison, click on the GPU comparison icon that you can find throughout Game-Debate:

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 CodenameLlanoLlano
MoBo SocketSocket FM1Socket FM1
Notebook CPUnono
Release Date01 Jan 201220 Dec 2011
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs4
CPU Threads4vs4
Clock Speed2.5 GHzvs2.7 GHz
Turbo Frequency2.8 GHzvs2.7 GHz
Max TDP65 Wvs100 W
Lithography32 nmvs32 nm
Bit Width64 Bitvs64 Bit
Max Temperature73°Cvs73°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs512 KB
L2 Cache Size4096 KBvs4096 KB
L3 Cache Size-vs-
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsRadeon HD 6550DRadeon HD 6530D
Base GPU Frequency600 MHzvs443 MHz
Max GPU Frequency-vs-
DirectX11vs11
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 ReviewAPU 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.
APU A8-3870K Quad-Core is a performance CPU based on the 32nm, Lynx architecture.

It offers 4 Physical Cores (4 Logical), clocked at 2.7GHz and 4MB of L2 Cache.
Among its many features, Virtualization is activated and the processor has the clock multiplier unlocked, meaning it can be overclocked easily.

The processor integrates average Graphics called Radeon HD 6530D, 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 100W.

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