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Gaming Performance Comparison

Recommended System Requirements
Game Core 2 Duo E8500 3.16GHz Core 2 Duo E6700 2.66GHz
Cyberpunk 2077 147% 214%
Assassins Creed: Valhalla 232% 323%
Call of Duty: Black Ops Cold War 139% 204%
Grand Theft Auto VI 306% 416%
FIFA 21 131% 194%
Genshin Impact 87% 138%
Far Cry 6 290% 395%
Hitman 3 232% 323%
Watch Dogs Legion 232% 323%
World of Warcraft: Shadowlands 284% 388%

In terms of overall gaming performance, the Intel Core 2 Duo E8500 3.16GHz is noticeably better than the Intel Core 2 Duo E6700 2.66GHz 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 E8500 3.16GHz was released over a year more recently than the E6700 2.66GHz, and so the E8500 3.16GHz is likely to have better levels of support, and will be more optimized for running the latest games.

The E8500 3.16GHz and the E6700 2.66GHz both have 2 cores, and so are quite likely to struggle with the latest games, or at least bottleneck high-end graphics cards when running them. With a decent accompanying GPU, the E8500 3.16GHz and the E6700 2.66GHz may still be able to run slightly older games fairly effectively.

Both the Intel Core 2 Duo E8500 3.16GHz and the Intel Core 2 Duo E6700 2.66GHz have the same number of threads. Both CPUs have one thread per physical core.

Multiple threads are useful for improving the performance of multi-threaded applications. Additional cores and their accompanying thread will always be beneficial for multi-threaded applications. Hyperthreading will be beneficial for applications optimized for it, but it may slow others down. For games, the number of threads is largely irrelevant, as long as you have at least 2 cores (preferably 4), and hyperthreading can sometimes even hit performance.

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 E8500 3.16GHz and E6700 2.66GHz 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 E8500 3.16GHz has a 0.5 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 E8500 3.16GHz has a 2048 KB bigger L2 cache than the E6700 2.66GHz, but neither of the CPUs have L3 caches, so the E8500 3.16GHz wins out in this area with its larger L2 cache.

The System Bus Speed is important for providing higher bandwidth, and with higher bandwidth the system has the capacity to move more data over a certain time period than it would with lower bandwidth.

The E8500 3.16GHz and the E6700 2.66GHz both have System Bus Speeds of 1333 MHz, and so have the same limits when it comes to the size of the data being processed at once.

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 E8500 3.16GHz and the E6700 2.66GHz have the same TDP of 65 Watts, but the E8500 3.16GHz has a lower lithography size, and so will affect your yearly electricity bills less adversely.

CPU Core Details

CPU CodenameWolfdaleConroe
MoBo SocketLGA 775/ Socket TLGA 775/ Socket T
Notebook CPUnono
Release Date10 Aug 200827 Jul 2007
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores2vs2
CPU Threads2vs2
Clock Speed3.16 GHzvs2.66 GHz
Turbo Frequency-vs-
System Bus 1333 MHzvs1333 MHz
Max TDP65 Wvs65 W
Lithography45 nmvs65 nm
Bit Width64 Bitvs64 Bit
Max Temperature72°Cvs60°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L2 Cache Size6144 KBvs4096 KB
L3 Cache Size-vs-
Memory Channels-vs2
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-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewCore 2 Duo E8500 3.16GHz is a middle-class Processor based on the 45nm Core micro-architecture.

It offers 2 Physical Cores (2 Logical), clocked at 3.16GHz and 6MB of L2 Cache.
Among its many features, Virtualization is activated.

The processor DOES NOT integrated any graphics. and has a rated board TDP of 65W.

It offers average performance. It will therefore become a bottleneck in today's demanding games.
Core 2 Duo E6700 2.66GHz is a middle-class Processor based on the 65nm Core micro-architecture.

It offers 2 Physical Cores (2 Logical), clocked at 2.66GHz and 4MB of L2 Cache.
Among its many features, Virtualization is activated.

The processor DOES NOT integrated any graphics. and has a rated board TDP of 65W.

It offers average performance. It will therefore become a bottleneck in today's demanding games.