Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Xeon Processor E5345 Opteron 8374 HE
Cyberpunk 2077 207% 205%
Assassins Creed: Valhalla 313% 311%
Call of Duty: Black Ops Cold War 197% 196%
FIFA 21 187% 185%
Microsoft Flight Simulator 247% 246%
World of Warcraft: Shadowlands 377% 375%
Watch Dogs Legion 313% 311%
Horizon: Zero Dawn 247% 246%
Grand Theft Auto VI 404% 402%
Genshin Impact 132% 131%

In terms of overall gaming performance, the AMD Opteron 8374 HE is marginally better than the Intel Xeon Processor E5345 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 Opteron 8374 HE was released less than a year after the Xeon Processor E5345, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The Xeon Processor E5345 and the Opteron 8374 HE both have 4 cores, which is not likely to be a limiting factor for gaming.

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 E5345 and Opteron 8374 HE 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 Xeon Processor E5345 has a 0.13 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 Xeon Processor E5345 has a 7680 KB bigger L2 cache than the Opteron 8374 HE, and although the Xeon Processor E5345 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 Opteron 8374 HE has a 25 Watt lower Maximum TDP than the Xeon Processor E5345, and was created with a 20 nm smaller manufacturing technology. What this means is the Opteron 8374 HE 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 CodenameClovertownShanghai
MoBo SocketLGA 771/Socket JSocket Fr2
Notebook CPUnono
Release Date14 Nov 200629 Jan 2009
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs4
Clock Speed2.33 GHzvs2.2 GHz
Turbo Frequency-vs-
System Bus -vs1000 MHz
Max TDP80 Wvs55 W
Lithography65 nmvs45 nm
Bit Width-vs-
Voltage Range-vs1.2V KB
Max Temperature-vs55°C
Virtualization Technologynovsyes
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs128 KB
L1 Cache Count-vs4
L2 Cache Size8192 KBvs512 KB
L2 Cache Count-vs4
L2 Cache Speed-vs2200 MHz
L3 Cache Size-vs6144 MB
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsno
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 ReviewThe Intel Xeon E5345 is an old server processor based on the Clovertown Core of the Core microarchitecture. 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.Opteron is AMD's x86 server and workstation processor line, and was the first processor which supported the AMD64 instruction set architecture (known generically as x86-64). It was released on April 22, 2003 with the SledgeHammer core (K8) and was intended to compete in the server and workstation markets, particularly in the same segment as the Intel Xeon processor. Processors based on the AMD K10 microarchitecture (codenamed Barcelona) were announced on September 10, 2007 featuring a new quad-core configuration. The most-recently released Opteron CPUs are the Piledriver-based Opteron 4300 and 6300 series processors, codenamed "Seoul" and "Abu Dhabi" respectively.

Vendor-Specific Features

Intel Quick Sync VideoAMD Power Management
Intel InTru 3DAMD Business Class
Intel InsiderAMD Black Edition
Intel Wireless Display
Intel Flexible Display
Intel Clear Video HD
Intel vPro
Intel Hyper-Threading
Intel Virt. Tech. for Directed I/O
Intel Trusted Execution
AES New Instructions
Intel Anti-Theft
Idle States
Intel SpeedStep
Thermal Monitoring
Execute Disable Bit
Intel VT-x with EPT
Embedded Options