Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Xeon Processor E5320 Athlon II X2 245e
Cyberpunk 2077 298% 397%
Assassins Creed: Valhalla 435% 569%
Call of Duty: Black Ops Cold War 285% 382%
Grand Theft Auto VI 554% 717%
FIFA 21 272% 365%
Genshin Impact 201% 276%
Far Cry 6 527% 684%
Hitman 3 435% 569%
Watch Dogs Legion 435% 569%
World of Warcraft: Shadowlands 518% 673%

In terms of overall gaming performance, the Intel Xeon Processor E5320 is noticeably better than the AMD Athlon II X2 245e 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 Athlon II X2 was released less than a year after the Xeon Processor E5320, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The Xeon Processor E5320 has 2 more cores than the Athlon II X2. With 4 cores, the Xeon Processor E5320 is much less likely to struggle with the latest games, or bottleneck high-end graphics cards when running them.

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 Xeon Processor E5320 and Athlon II 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 II X2 has a 1.04 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 probably a good indicator that the Xeon Processor E5320 is superior.

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 Xeon Processor E5320 has a 6144 KB bigger L2 cache than the Athlon II X2, but neither of the CPUs have L3 caches, so the Xeon Processor E5320 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 Athlon II X2 has a 35 Watt lower Maximum TDP than the Xeon Processor E5320, and was created with a 20 nm smaller manufacturing technology. What this means is the Athlon II X2 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 CodenameClovertownRegor
MoBo SocketLGA 771/Socket JSocket AM2+ / AM3
Notebook CPUnono
Release Date14 Nov 200610 May 2010
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs2
Clock Speed1.86 GHzvs2.9 GHz
Turbo Frequency-vs-
Max TDP80 Wvs45 W
Lithography65 nmvs45 nm
Bit Width-vs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs256 KB
L2 Cache Size8192 KBvs2048 KB
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsnono

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 ReviewThe Intel Xeon E5320 is an old server processor based on the LGA771 socket. It consumes quite a bit of power for its speed, and the lack of L3 cache holds it back in modern tasks. Therefore, it is not suitable for modern gaming, although games from the same time period or that are non-demanding should run fine.The Athlon II series is based on the AMD K10 architecture and derived from the Phenom II series. However, unlike its Phenom siblings, it does not contain any L3 Cache. There are two Athlon II dies: the dual-core Regor die with 1 MB L2 Cache per core and the four-core Propus with 512 KB per core. Regor is a native dual-core design with lower TDP and additional L2 to offset the removal of L3 cache. The three core Rana is derived from the Propus quad-core design, with one core disabled.