Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Phenom II X4 B65 Xeon E5-1620 v2
Red Dead Redemption 2 90% 22%
Cyberpunk 2077 61% 4%
Dragon Ball Z Kakarot 43% 8%
Microsoft Flight Simulator 106% 33%
Call of Duty: Modern Warfare 41% 9%
Doom Eternal 56% 1%
FIFA 20 36% 12%
Grand Theft Auto VI 158% 66%
Need For Speed Heat 60% 3%
Halo: Reach 22% 49%

In terms of overall gaming performance, the Intel Xeon E5-1620 v2 is massively better than the AMD Phenom II X4 B65 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 E5-1620 v2 was released less than a year after the Phenom II X4, and so they are likely to have similar levels of support, and similarly optimized performance when 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 Phenom II X4 and the Xeon E5-1620 v2 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 Phenom II X4 and Xeon E5-1620 v2 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 E5-1620 v2 has a 0.3 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 .

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 Xeon E5-1620 v2, but on the other hand, it is the Xeon E5-1620 v2 that has a 4 MB bigger L3 cache than the Phenom II X4. In this case, the L2 size is probably what counts, so the Phenom II X4 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 Phenom II X4 has a 35 Watt lower Maximum TDP than the Xeon E5-1620 v2. However, the Xeon E5-1620 v2 was created with a 23 nm smaller manufacturing technology. Overall, by taking both into account, the Xeon E5-1620 v2 is likely the CPU with the lower heat production and power requirements, by a small amount.

CPU Core Details

CPU CodenameDenebIvy Bridge
MoBo SocketSocket AM2+LGA 2011/Socket R
Notebook CPUnono
Release Date07 Dec 201010 Sep 2013
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs4
CPU Threads4vs-
Clock Speed3.4 GHzvs3.7 GHz
Turbo Frequency-vs-
Max TDP95 Wvs130 W
Lithography45 nmvs22 nm
Bit Width64 Bitvs4 Bit
Max Temperature-vs70°C
Virtualization Technologynovsyes
Comparison

CPU Cache and Memory

L1 Cache Size512 KBvs256 KB
L1 Cache Count-vs8
L2 Cache Size2048 KBvs1024 KB
L2 Cache Count-vs4
L2 Cache Speed-vs256 MHz
L3 Cache Size6 MBvs10 MB
Max Memory Size-vs256 GB
Memory Channels-vs4
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-vs2
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewPhenom II X4 B65 is an unlocked Phenom II X2 565.

It should offer similar performance to a Phenom II X4 B99.
Intel Xeon E5-1620 v2 is a Server Processor based on the Ivy Bridge architecture but without featuring integrated graphics. All the other features are enabled. Its performance is quite extreme, as is its price.

Vendor-Specific Features

AMD Power ManagementIntel Quick Sync Video
AMDBusiness ClassIntel InTru 3D
AMD Black EditionIntel Insider
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

Title

Body