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Site updated: 24.11.17

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4th Gen Core i7 4790K 4.0GHz 88W HD4600 8MB Quad Core CPU
Discontinued
(2 customer ratings)
4th Gen Core i7 4770 3.4GHz 84W HD4600 8MB Quad Core CPU
Discontinued
4th Gen Core i7 4790T 2.7GHz 45W HD4600 8MB Quad Core CPU
Discontinued
(10 customer ratings)
4th Gen Core i7 4790S 3.2GHz 65W HD4600 8MB Quad Core CPU
Discontinued
(6 customer ratings)
4th Gen Core i7 4785T 2.2GHz 35W HD4600 8MB Quad Core CPU
Discontinued
(8 customer ratings)
4th Gen Core i7 4770K 3.5GHz 84W HD4600 8MB Quad Core CPU
Discontinued
(2 customer ratings)
4th Gen Core i7 4765T 2.0GHz 35W HD4600 8MB Quad Core CPU
Discontinued
(11 customer ratings)
4th Gen Core i7 4770S 3.1GHz 65W HD4600 8MB Quad Core CPU
Discontinued
(4 customer ratings)

Intel Haswell 4th Generation Core i7 Processors

- Replaces the Intel LGA1155 Ivy Bridge Processors

See also Intel Haswell 4th Generation entry-level Core i3 and mid-range Core i5 Processors.

The Intel Core i7 Processors

Launched in June 2014, Intel's latest CPUs are codenamed 'Haswell Refresh' but are more officially known as 4th Generation Intel Core processors. The familiar i3 /i5 / i7 branding is retained and easily allows customers to identify the budget, mid-range and premium versions respectively. As you might expect, with this new generation of processors comes improved performance and an overall reduction in power requirements, although the highest-performance variants actually consume 4 watts more than their previous generation Haswell counterparts at full throttle.

Improved on-board graphics

Perhaps the biggest improvement is in the area of embedded graphics. With this new generation of CPUs the graphics are now known as HD 4600 and with the change of name comes about a significant improvement in performance, especially for 3D games and applications. Furthermore, up to three separate displays can now be driven simultaneously, reducing the need for a discrete graphics card where triple-head monitors are required.

Guide to suffix variants

The single-letter suffix on each model of processor denotes whether it can be overclocked (K), or is low-power (S) or ultra-low power (T). Note that 'power' in this context refers to electrical power, not computational power. We recommend S or T suffix processors where cool-running / energy saving is required, or K-series processors where maximum performance is desirable and sufficient cooling can be provided accordingly.

Variant performance comparisons

In terms of computational performance, Intel don't provide official figures for their processors because so much depends on other hardware such as motherboard, type of memory, etc. So instead, we would suggest that potential customers refer to real-world empirical performance benchmarks such as those published by Passmark and quoted in the specification table below. These allow a simple comparison to be made between the different variants of processors and are based upon the averaged results of many users' PC systems across the world. An opinion about the relative performance differences between each model of processor can therefore be quickly formed.

Core i5 / Core i7 differences

In essence, Core i5 processors are designed to be more affordable, lower performing versions of the Core i7 parts. There will certainly be some overlap in performance between the highest-end i5 processors and the cheapest i7 versions, but in essence the Core i5 range has a smaller cache (6MB rather than 8MB), a fewer maximum number of threads (4 not 8) and the omission of Hyper-Threading (HT Technology).


SpecificationsCore i7 4765T CPUCore i7 4770 CPUCore i7 4770K CPUCore i7 4770S CPU
Clock speed stock / turbo2.0 / 3.0 GHz 3.4 / 3.9 GHz 3.5 / 3.9 GHz 3.1 / 3.9 GHz
Cores / threads4/8
L3 Smart Cache8MB
Hyper-ThreadingYes
Stock multiplierX20 X34 X35 X31
Typical Passmark score7500 9900 10200 9300
HD Graphics speed (stock)350 MHz
HD Graphics speed (max)1200 MHz 1250 MHz 1200 MHz
HD Graphics4600
Thermal Design Power (TDP), watts35W 84W 65W
vPro managementYes No Yes
VT-d VirtualisationYes No Yes
Socket type1150
CodenameHaswell
Lithography22 nm
PackagingOEM
More informationHere Here Here Here
Warranty24 months
EAN barcode- 5032037050555 -
SpecificationsCore i7 4785T CPUCore i7 4790K CPUCore i7 4790S CPUCore i7 4790T CPU
Clock speed stock / turbo2.2 / 3.2 GHz 4.0 / 4.4 GHz 3.2 / 4.0 GHz 2.7 / 3.9 GHz
Cores / threads4/8
L3 Smart Cache8MB
Hyper-ThreadingYes
Stock multiplierX22 X40 X32 X27
Typical Passmark score8500 11000 10000 9500
HD Graphics speed (stock)350 MHz
HD Graphics speed (max)1200 MHz 1250 MHz 1200 MHz
HD Graphics4600
Thermal Design Power (TDP), watts35W 88W 65W 45W
vPro managementYes No Yes
VT-d VirtualisationYes
Socket type1150
CodenameHaswell-refresh
Lithography22 nm
PackagingOEM
More informationHere Here Here Here
Warranty24 months
EAN barcode- 5032037062152 -
 

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