Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Xeon E5-2637 v2 Opteron 4274 HE
Cyberpunk 2077 10% 40%
Hitman 3 21% 89%
Assassins Creed: Valhalla 21% 89%
Call of Duty: Black Ops Cold War 13% 36%
FIFA 21 16% 31%
Grand Theft Auto VI 48% 131%
Far Cry 6 42% 121%
Genshin Impact 32% 6%
World of Warcraft: Shadowlands 40% 118%
Battlefield 6 26% 96%

In terms of overall gaming performance, the Intel Xeon E5-2637 v2 is massively better than the AMD Opteron 4274 HE 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 Xeon E5-2637 v2 was released over a year more recently than the Opteron 4274 HE, and so the Xeon E5-2637 v2 is likely to have better levels of support, and will be more optimized for running the latest games.

Both CPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings (assuming they are accompanied by equivalently powerful GPUs).

The Opteron 4274 HE has 4 more cores than the Xeon E5-2637 v2. 8 cores is probably excessive if you mean to just run the latest games, as games are not yet able to harness this many cores. The cores in the Xeon E5-2637 v2 is more than enough for gaming purposes. However, if you intend on running a server with the Opteron 4274 HE, it would seem to be a decent choice.

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 E5-2637 v2 and Opteron 4274 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 E5-2637 v2 has a 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. In this case, however, the difference is probably a good indicator that the Opteron 4274 HE 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 Opteron 4274 HE has a 744 KB bigger L2 cache than the Xeon E5-2637 v2, but on the other hand, it is the Xeon E5-2637 v2 that has a 7 MB bigger L3 cache than the Opteron 4274 HE. In this case, the L2 size is probably what counts, so the Opteron 4274 HE is likely superior 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 4274 HE has a 65 Watt lower Maximum TDP than the Xeon E5-2637 v2. However, the Xeon E5-2637 v2 was created with a 10 nm smaller manufacturing technology. Overall, by taking both into account, the Opteron 4274 HE is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameIvy BridgeValencia
MoBo SocketLGA 2011/Socket RSocket C32
Notebook CPUnono
Release Date10 Sep 201314 Nov 2011
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs8
CPU Threads8vs-
Clock Speed3.5 GHzvs2.5 GHz
Turbo Frequency3.8 GHzvs-
System Bus -vs3200 MHz
Max TDP130 Wvs65 W
Lithography22 nmvs32 nm
Bit Width64 Bitvs-
Max Temperature76°Cvs68°C
Virtualization Technologynovsyes
Comparison

CPU Cache and Memory

L1 Cache Size-vs48 KB
L1 Cache Count-vs8
L2 Cache Size256 KBvs1000 KB
L2 Cache Count-vs8
L2 Cache Speed-vs2600 MHz
L3 Cache Size15 MBvs8 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 Size52.5mm x 45mmvs-
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe Xeon E5-2637 v2 is a 64-bit server processor in the Xeon E5 v2 family of processors. It has four cores and 8 threads, a clock speed of 3.5GHz with turbo boost to 3.8GHz. The memory controller supports DDR3-800/1066/1333/1600/1866 and it is based on the Ivy Bridge architecture.
The Xeon E5-2637 v2 is a high performing server processor, with a very high price to match. I was released in September 2013.
Opteron is AMD's x86 server and workstation processor line, and was the first processor to implement 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 8- and 12-core Socket G34 Opterons, code-named Magny-Cours.

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