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Gaming Performance Comparison

Recommended System Requirements
Game Core i5-8305G 4-Core 2.8GHz Core i7-3612QM 4-Core 2.1GHz
Cyberpunk 2077 3% 10%
Assassins Creed: Valhalla 31% 47%
Call of Duty: Black Ops Cold War 6% 6%
FIFA 21 9% 2%
Microsoft Flight Simulator 10% 24%
Immortals: Fenyx Rising 5% 18%
World of Warcraft: Shadowlands 51% 70%
Watch Dogs Legion 31% 47%
Genshin Impact 26% 17%
Grand Theft Auto VI 60% 80%

In terms of overall gaming performance, the Intel Core i5-8305G 4-Core 2.8GHz is significantly better than the Intel Core i7-3612QM 4-Core 2.1GHz 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 Core i5-8305G 4-Core was released over three years more recently than the Core i7-3612QM 4-Core, and so the Core i5-8305G 4-Core is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Core i7-3612QM 4-Core 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 Core i5-8305G 4-Core and the Core i7-3612QM 4-Core both have 4 cores, which is not likely to be a limiting factor for gaming.

Both the Intel Core i5-8305G 4-Core 2.8GHz and the Intel Core i7-3612QM 4-Core 2.1GHz have the same number of threads. Both the Core i5-8305G 4-Core and the Core i7-3612QM 4-Core use hyperthreading. The Core i5-8305G 4-Core has 2 logical threads per physical core and the Core i7-3612QM 4-Core has 2.

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 Core i5-8305G 4-Core and Core i7-3612QM 4-Core 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 Core i5-8305G 4-Core has a 0.7 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 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 Core i7-3612QM 4-Core has a 30 Watt lower Maximum TDP than the Core i5-8305G 4-Core. However, the Core i5-8305G 4-Core was created with a 8 nm smaller manufacturing technology. Overall, by taking both into account, the Core i7-3612QM 4-Core is likely the CPU with the lower heat production and power requirements, by a small amount.

The Core i7-3612QM 4-Core has an on-board GPU, which means that it will be capable of running basic graphics applications (i.e., games) without the need for a dedicated graphics card. The Core i5-8305G 4-Core, however, does not, and you will probably have to look for a dedicated card if you wish to use it at all.

For in-depth GPU comparisons with the Intel HD Graphics 4000 Mobile, click on the following GPU overview comparison icon (visible throughout Game-Debate), and choose a GPU from the list to compare against:

On-board GPUs tend to be fairly awful in comparison to dedicated cards from the likes of AMD or Nvidia, but as they are built into the CPU, they also tend to be cheaper and require far less power to run (this makes them a good choice for laptops). We would recommend a dedicated card for running the latest games, but integrated GPUs are improving all the time and casual gamers may find less recent games perform perfectly acceptably.

CPU Core Details

CPU CodenameKaby Lake GIvy Bridge
MoBo SocketBGA 2270BGA 1224
Notebook CPUyesyes
Release Date08 Jan 201829 Apr 2012
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs4
CPU Threads8vs8
Clock Speed2.8 GHzvs2.1 GHz
Turbo Frequency3.8 GHzvs3.1 GHz
Max TDP65 Wvs35 W
Lithography14 nmvs22 nm
Bit Width64 Bitvs64 Bit
Max Temperature-vs105°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size-vs256 KB
L2 Cache Size-vs1024 KB
L3 Cache Size8 MBvs6 MB
Max Memory Size-vs32 GB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsIntel HD Graphics 4000 Mobile
Base GPU Frequency-vs650 MHz
Max GPU Frequency-vs1350 MHz
DirectX-vs11
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 ReviewThe Intel Core i5-8305G 4-Core 2.8GHz is a high-end CPU based on Intel's 14nm Kaby Lake G microarchitecture. It offers 4 physical cores (8 logical), initially clocked at 2.8GHz, which may go up to 3.8GHz using Turbo Boost. It doesn't feature an unlocked multiplier, therefore, it can't be overclocked using traditional methods. It has 8MB of L3 Cache. Level 3 cache is a static memory bank of a processor and it is used to feed it instructions. This processor also supports DDR4 based RAMs with maximum memory support of 64GB. It has a maximum Thermal Power Design of 65W (including the onboard GPU). It is a fairly power efficient processor. Among its many features, HyperThreading, Turbo Boost 2.0 and Virtualization are activated are enabled. It features Intel HD Graphics 630 integrated GPU with 350MHz base clock and turbo boost frequency of 1.15GHz. Video memory will depend on the amount of RAM paired with CPU but maximum limit is 64GB. In addition, the Core i7-8705G 4-Core 3.1GHz features a Radeon RX Vega M GL dedicated Graphics processor. It equips a GPU Codenamed Vega M which offers 20 Compute Units, 80 TMUs and 32 ROPs. The Central Unit Initially Runs at 931MHz and goes up to 1011MHz in Turbo Mode. The GPU utilises its own onboard HBM2 memory. Radeon RX Vega M GL has 4GB of second-generation High Bandwidth Memory, clocked at 1.4Gb/s. Sat on a 1024-bit memory interface, this provides total memory bandwidth of 179.2GB/s. The Most Powerful Variant Offers Performance similar to a dedicated GeForce GTX 1050 Ti. This Intel Core i5-8305G CPU is likely to offer excellent computational performance and will not be the bottleneck in any modern gaming PC.Core i7-3612QM 4-Core 2.1GHz is an energy efficient mobile processor based on the 22nm, Ivy Bridge microarchitecture.

It offers 4 Physical Cores (8 Logical), initially clocked at 2.1GHz, which may go up to 3.1GHz and 6MB of L3 Cache.
Among its many features, HyperThreading, Turbo Boost and Virtualization are activated.

The processor integrates mildly powerful Integrated Graphics called Intel HD Graphics 4000, with 16 Execution Units, initially clocked at 650MHz and that go up to 1100MHz, in Turbo Mode which share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 35W.

Its performance is very good and sufficient for any of today's games.