Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Sempron 3850 Athlon 64 X2 Dual Core 3600+
Cyberpunk 2077 383% 405%
Assassins Creed: Valhalla 551% 580%
Call of Duty: Black Ops Cold War 532% 560%
Genshin Impact 266% 282%
eFootball PES 2021 420% 443%
Mafia: Definitive Edition 420% 443%
Watch Dogs Legion 551% 580%
FIFA 21 352% 372%
Marvel's Avengers 532% 560%
Microsoft Flight Simulator 448% 472%

In terms of overall gaming performance, the AMD Sempron 3850 is marginally better than the AMD Athlon 64 X2 Dual Core 3600+ 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 Sempron 3850 was released over three years more recently than the Athlon 64 X2, and so the Sempron 3850 is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Athlon 64 X2 when running the latest games.

The Sempron 3850 has 2 more cores than the Athlon 64 X2. With 4 cores, the Sempron 3850 is much less likely to struggle with the latest games, or bottleneck high-end graphics cards when running them.

The Sempron 3850 has 2 more threads than the Athlon 64 X2. 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 Sempron 3850 and Athlon 64 X2 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 Athlon 64 X2 has a 0.6 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 Sempron 3850.

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 Sempron 3850 has a 1024 KB bigger L2 cache than the Athlon 64 X2, but neither of the CPUs have L3 caches, so the Sempron 3850 wins out in this area with its larger L2 cache.

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 Sempron 3850 has a 40 Watt lower Maximum TDP than the Athlon 64 X2, and was created with a 37 nm smaller manufacturing technology. What this means is the Sempron 3850 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 Sempron 3850 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 Athlon 64 X2, 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 8280, 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 CodenameKabiniBrisbane
MoBo SocketSocket AM1Socket AM2
Notebook CPUnono
Release Date09 Apr 201402 Jan 2007
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs2
CPU Threads4vs2
Clock Speed1.3 GHzvs1.9 GHz
Turbo Frequency-vs-
Max TDP25 Wvs65 W
Lithography28 nmvs65 nm
Bit Width64 Bitvs64 Bit
Max Temperature90°Cvs72°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs256 KB
L2 Cache Size2048 KBvs1024 KB
L3 Cache Size-vs-
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsRadeon HD 8280
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 ReviewSempron 3850 is a low-budget quad-core processor based on the Jaguar microarchitecture.
Sempron 3850 packs 4 Kabini Cores, clocked at 1.45GHz and weak integrated graphics called Radeon HD 8280 that offer 128 Shader Processing Units and come clocked at 450MHz. The rated TDP is of 25W, thus the processor is suited for weaker systems.
The performance of the processor is below the average, while the integrated graphics can only run most modern games at the lowest settings.
Athlon 64 X2 Dual Core 3600+ is a middle-class Processor based on the 65nm K8 micro-architecture.

It offers 2 Physical Cores (2 Logical), clocked at 1.9GHz and 2MB of L2 Cache.
Among its many features, Virtualization is activated.

The processor DOES NOT integrated any graphics. and has a rated board TDP of 65W.

Its performance is below the average and so most demanding games will not run optimally.