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Gaming Performance Comparison

Recommended System Requirements
Game Phenom II X4 905e Athlon 64 X2 Dual Core 6000+
Cyberpunk 2077 95% 222%
Assassins Creed: Valhalla 163% 333%
Call of Duty: Black Ops Cold War 89% 212%
FIFA 21 82% 201%
Microsoft Flight Simulator 121% 264%
Watch Dogs Legion 163% 333%
World of Warcraft: Shadowlands 203% 400%
Grand Theft Auto VI 221% 429%
Genshin Impact 48% 144%
Horizon: Zero Dawn 121% 264%

In terms of overall gaming performance, the AMD Phenom II X4 905e is massively better than the AMD Athlon 64 X2 Dual Core 6000+ 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 Phenom II X4 was released over a year more recently than the Athlon 64 X2, and so the Phenom II X4 is likely to have better levels of support, and will be more optimized for running the latest games.

The Phenom II X4 has 2 more cores than the Athlon 64 X2. With 4 cores, the Phenom II X4 is much less likely to struggle with the latest games, or bottleneck high-end graphics cards when running them.

The Phenom II X4 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 Phenom II X4 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 Phenom II X4.

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 Phenom II X4 has a 1024 KB bigger L2 cache than the Athlon 64 X2, and although the Athlon 64 X2 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 Phenom II X4 has a 24 Watt lower Maximum TDP than the Athlon 64 X2, and was created with a 20 nm smaller manufacturing technology. What this means is the Phenom II X4 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).

CPU Core Details

CPU CodenameDenebBrisbane
MoBo SocketSocket AM3Socket AM2
Notebook CPUnono
Release Date02 Jun 200901 Jun 2008
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs2
CPU Threads4vs2
Clock Speed2.5 GHzvs3.1 GHz
Turbo Frequency-vs-
System Bus -vs1000 MHz
Max TDP65 Wvs89 W
Lithography45 nmvs65 nm
Bit Width64 Bitvs64 Bit
Max Temperature70°Cvs62°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size64 KBvs256 KB
L2 Cache Size2048 KBvs1024 KB
L3 Cache Size6 MBvs-
Memory Channels-vs2
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 ReviewPhenom II X4 905e is an energy efficient processor based on the 45nm, K10 architecture.

It offers 4 Physical Cores (4 Logical), clocked at 2.5GHz and 6MB of L3 Cache.
Among its many features, Virtualization is activated and the clock multiplier is unlocked, meaning it can be overclocked easily.

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

It offers average performance. This means it will become a bottleneck in some demanding applications.
Athlon 64 X2 Dual Core 6000+ is a middle-class Processor based on the 65nm K8 micro-architecture.

It offers 2 Physical Cores (2 Logical), clocked at 3.1GHz 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 89W.

It offers average performance. It will therefore become a bottleneck in today's demanding games.