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Gaming Performance Comparison

Recommended System Requirements
Game Athlon 64 FX-70 Dual Core Phenom II X4 905e
Cyberpunk 2077 230% 95%
Assassins Creed: Valhalla 344% 163%
Call of Duty: Black Ops Cold War 220% 89%
FIFA 21 208% 82%
Microsoft Flight Simulator 274% 121%
Watch Dogs Legion 344% 163%
World of Warcraft: Shadowlands 413% 203%
Grand Theft Auto VI 442% 221%
Genshin Impact 150% 48%
Horizon: Zero Dawn 274% 121%

In terms of overall gaming performance, the AMD Phenom II X4 905e is massively better than the AMD Athlon 64 FX-70 Dual 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 Phenom II X4 was released less than a year after the Athlon 64 FX-70, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The Phenom II X4 has 2 more cores than the Athlon 64 FX-70. 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 FX-70. 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 Athlon 64 FX-70 and Phenom II X4 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 FX-70 has a 0.1 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 Athlon 64 FX-70 and the Phenom II X4 have the same L2 cache size, but the Athlon 64 FX-70 does not appear to have an L3 cache, so the Phenom II X4 definitely 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 60 Watt lower Maximum TDP than the Athlon 64 FX-70, and was created with a 45 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 CodenameWindsorDeneb
MoBo SocketSocket FSocket AM3
Notebook CPUnono
Release Date30 Nov 200602 Jun 2009
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores2vs4
CPU Threads2vs4
Clock Speed2.6 GHzvs2.5 GHz
Turbo Frequency-vs-
Max TDP125 Wvs65 W
Lithography90 nmvs45 nm
Bit Width64 Bitvs64 Bit
Max Temperature65°Cvs70°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs64 KB
L2 Cache Size2048 KBvs2048 KB
L3 Cache Size-vs6 MB
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 ReviewAthlon 64 FX-70 Dual Core is a middle-class Processor based on the 90nm K8 micro-architecture.

It offers 2 Physical Cores (2 Logical), clocked at 2.6GHz and 2MB of L2 Cache.
Among its many features, Virtualization is activated.

The processor DOES NOT integrate any graphics. and has a rated board TDP of 125W.

It offers average performance. This means it will become a bottleneck in some demanding applications.
Note: The rank of this processor is based on its Quad-Core Configuration.
Phenom 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.