7.5
Check Prices $242
4.6
Check Prices $224
Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Core i5-7640X 4.0GHz Core i5-4670 3.4GHz
Red Dead Redemption 2 5% 18%
Call of Duty: Modern Warfare 22% 13%
Cyberpunk 2077 11% 0%
Fortnite: Chapter 2 42% 35%
Need For Speed Heat 12% 1%
The Outer Worlds 14% 28%
Microsoft Flight Simulator 14% 28%
Zombieland: Double Tap - Road Trip 5% 18%
Borderlands 3 5% 18%
FIFA 20 25% 16%

In terms of overall gaming performance, the Intel Core i5-7640X 4.0GHz is massively better than the Intel Core i5-4670 3.4GHz 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 i5-7640X 4.0GHz was released over three years more recently than the Core i5-4670 3.4GHz, and so the Core i5-7640X 4.0GHz is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Core i5-4670 3.4GHz 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 i5-7640X 4.0GHz and the Core i5-4670 3.4GHz both have 4 cores, which is not likely to be a limiting factor for gaming.

Both the Intel Core i5-7640X 4.0GHz and the Intel Core i5-4670 3.4GHz 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 Core i5-7640X 4.0GHz and Core i5-4670 3.4GHz 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 i5-7640X 4.0GHz has a 0.6 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 i5-4670 3.4GHz has a 28 Watt lower Maximum TDP than the Core i5-7640X 4.0GHz. However, the Core i5-7640X 4.0GHz was created with a 8 nm smaller manufacturing technology. Overall, by taking both into account, the Core i5-4670 3.4GHz is likely the CPU with the lower heat production and power requirements, by a small amount.

The Core i5-4670 3.4GHz 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 i5-7640X 4.0GHz, 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 4600 Desktop, 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-XHaswell
MoBo SocketNot sureLGA 1150
Notebook CPUnono
Release Date30 Jun 201704 Jun 2013
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs4
CPU Threads4vs4
Clock Speed4 GHzvs3.4 GHz
Turbo Frequency4.2 GHzvs3.8 GHz
Max TDP112 Wvs84 W
Lithography14 nmvs22 nm
Bit Width64 Bitvs64 Bit
Max Temperature-vs73°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size-vs256 KB
L2 Cache Size-vs1024 KB
L3 Cache Size6 MBvs6 MB
Max Memory Size-vs32 GB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsIntel HD Graphics 4600 Desktop
Base GPU Frequency-vs400 MHz
Max GPU Frequency-vs1250 MHz
DirectX-vs11.1
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 i5-7640X 4-Core 4.0GHz is a high-end CPU based on the 14nm Kaby Lake-X micro architecture. It offers 4 physical cores (4 logical), initially clocked at 4.0GHz, which may go up to 4.2GHz with boost, and 8MB of L3 Cache. Among its many features, Turbo Boost 3.0 and Virtualization are activated and the processor has its multiplier unlocked. The Core i5-7640X is the only new seventh generation 'X' CPU without multithreading support, running with a quad-core / 4 Threads and an 8MB L3 Cache. It has a base clock of 4.0GHz and a boost of 4.2GHz. This CPU is likely to offer exceptional computational performance and will not be the bottleneck in any modern gaming PC. It will be able to play all modern games comfortably on high/ultra graphics performance without being a hindrance to the accompanying GPU.Core i5-4670 3.4GHz is a performance CPU based on the 22nm, Haswell architecture.

It offers 4 Physical Cores (4 Logical), initially clocked at 3.4GHz, which may go up to 3.8GHz and 6MB of L3 Cache.
Among its many features, Turbo Boost and Virtualization are activated.

The processor integrates powerful Graphics called Intel HD Graphics 4600, with 20 Execution Units, initially clocked at 350MHz and that go up to 1200MHz, 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 84W.

Compared to Core i5-3570K there's an overall 6% performance boost. Its performance is exceptionally good and enough for even the most demanding applications.

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