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Gaming Performance Comparison

Recommended System Requirements
Game Xeon E3-1220 v3 Xeon Processor E5640
Red Dead Redemption 2 9% 138%
Doom Eternal 10% 96%
Cyberpunk 2077 7% 102%
Call of Duty: Modern Warfare 19% 76%
Dragon Ball Z Kakarot 18% 80%
Microsoft Flight Simulator 19% 159%
Star Wars: Jedi - Fallen Order 20% 163%
Grand Theft Auto VI 48% 223%
Need For Speed Heat 8% 101%
Warcraft 3: Reforged 77% 50%

In terms of overall gaming performance, the Intel Xeon E3-1220 v3 is massively better than the Intel Xeon Processor E5640 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 E3-1220 v3 was released over three years more recently than the Xeon Processor E5640, and so the Xeon E3-1220 v3 is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Xeon Processor E5640 when running the latest games.

The Xeon E3-1220 v3 and the Xeon Processor E5640 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 E3-1220 v3 and Xeon Processor E5640 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 E3-1220 v3 has a 0.43 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 Xeon E3-1220 v3 and the Xeon Processor E5640 have the same L2 cache size, but the Xeon Processor E5640 has a 4 MB bigger L3 cache, so in this area, it wins out over the Xeon E3-1220 v3.

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.

Both the Xeon E3-1220 v3 and the Xeon Processor E5640 have the same TDP of 80 Watts, but the Xeon E3-1220 v3 has a lower lithography size, and so will affect your yearly electricity bills less adversely.

CPU Core Details

CPU CodenameHaswellWestmere-EP
MoBo SocketLGA 1150LGA 1366/Socket B
Notebook CPUnono
Release Date02 Jun 201316 Mar 2010
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs4
CPU Threads4vs-
Clock Speed3.1 GHzvs2.67 GHz
Turbo Frequency3.5 GHzvs-
Max TDP80 Wvs80 W
Lithography22 nmvs32 nm
Bit Width64 Bitvs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs128 KB
L2 Cache Size1024 KBvs1024 KB
L3 Cache Size8 MBvs12 MB
Max Memory Size-vs-
Memory Channels-vs-
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 ReviewXeon E3-1220 v3 is a Server Processor based on the 22nm, Haswell architecture.

It offers 4 Physical Cores (4 Logical), initially clocked at 3.1GHz, which may go up to 3.5GHz and 8MB of L3 Cache.
Among its many features, HyperThreading, Turbo Boost and Virtualization are activated.

The processor DOES NOT Integrate any Graphics and shares the L2 Cache and system RAM with the processor.

Though not created for gaming purposes, its performance is exceptionally good and enough for even the most demanding applications.
Intel Xeon E5640 is a Server CPU part of the Xeon Series continuously released by Intel.
It's based on the Nehalem architecture and the memory controller supports DDR3-800 and DDR3-1066.
The performance though good, falls behind most Intel i5, i7 and since Intel Xeon E5640 wasn't built for gaming purposes it comes at a considerably high price.

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