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Gaming Performance Comparison

Recommended System Requirements
Game Celeron G1620 2.7GHz Phenom II X4 905e
Cyberpunk 2077 232% 95%
Assassins Creed: Valhalla 347% 163%
Call of Duty: Black Ops Cold War 222% 89%
FIFA 21 211% 82%
Watch Dogs Legion 347% 163%
Microsoft Flight Simulator 276% 121%
World of Warcraft: Shadowlands 416% 203%
Grand Theft Auto VI 446% 221%
Godfall 541% 277%
Genshin Impact 151% 48%

In terms of overall gaming performance, the AMD Phenom II X4 905e is massively better than the Intel Celeron G1620 2.7GHz 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 Celeron G1620 2.7GHz was released over three years more recently than the Phenom II X4, and so the Celeron G1620 2.7GHz is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Phenom II X4 when running the latest games.

The Phenom II X4 has 2 more cores than the Celeron G1620 2.7GHz. With 4 cores, the Phenom II X4 is much less likely to struggle with the latest games, or bottleneck high-end graphics cards when running them.

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 Celeron G1620 2.7GHz and Phenom II X4 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 Celeron G1620 2.7GHz has a 0.2 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 Phenom II X4 has a 1536 KB bigger L2 cache than the Celeron G1620 2.7GHz, which means that it, at worst, wins out in this area, and at best, will provide superior gaming performance and will work much better with high-end graphics cards.

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 Celeron G1620 2.7GHz has a 10 Watt lower Maximum TDP than the Phenom II X4, and was created with a 23 nm smaller manufacturing technology. What this means is the Celeron G1620 2.7GHz will consume slightly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill slightly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

CPU Core Details

CPU CodenameIvy BridgeDeneb
MoBo SocketLGA 1155/Socket H2Socket AM3
Notebook CPUnono
Release Date20 Jan 201302 Jun 2009
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores2vs4
CPU Threads-vs4
Clock Speed2.7 GHzvs2.5 GHz
Turbo Frequency-vs-
Max TDP55 Wvs65 W
Lithography22 nmvs45 nm
Bit Width-vs64 Bit
Max Temperature-vs70°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs64 KB
L2 Cache Size512 KBvs2048 KB
L2 Cache Speed-vs-
L3 Cache Size2 MBvs6 MB
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 ReviewCeleron G1620 2.7GHz is a budget CPU based on the 22nm Ivy Bridge micro-architecture with many of its features disabled, including Turbo Boost and Hyper Threading.
It offers 2 Cores, clocked at 2.7GHz and integrated graphics clocked at 650MHz (1.05GHz in Turbo Mode) and the memory controller supports DDR3-1333. It's expected to consume up to 55 Watt and offers 2MB of L3 Cache.
Its gaming performance is relatively average and on level with previous Sandy Bridge based dual-core CPUs (Core i3).
Phenom II X4 905e is an energy efficient processor based on the 45nm, K10 architecture.

It offers 4 Physical Cores (4 Logical), clocked at 2.5GHz and 6MB of L3 Cache.
Among its many features, Virtualization is activated and the clock multiplier is unlocked, meaning it can be overclocked easily.

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

It offers average performance. This means it will become a bottleneck in some demanding applications.