before you decide, it may be worth reading this article from Scan UK one of the UK's best computer parts retailers:
4th generation Intel Core processors unveiled
After months of rumours and speculation Intel has finally unveiled the first models of its fourth generation of Core processors. Based on the Haswell architecture the first models to hit the market are a variety of Core i5 and i7 for desktop PCs plus a handful of Core i7s for high-end laptops.
On the desktop side of things the Core i5 4670K
and Core i7 4770K
are the most notable chips, being the direct replacements for the Ivy Bridge architecture Core i5 3570K and Core i7 3770K respectively. In terms of key specs both generations of CPU have the same number of cores (4 and 4+4 respectively), run at the same frequency (3.4 and 3.5GHz respectively) and have the same amount of cache (6 and 8MB respectively). So, given that both new chips will require you to buy a new LG1150 motherboard based around one of the new 8-series chipsets, is there anything worth getting excited about?
Well, Haswell CPUs
do have a new on-board GPU, but to be honest if you’re buying a Core i5 or i7 you’re almost certainly also going to have a discrete graphics card in your PC. Therefore you’re probably more interested to hear that Intel has increased the size of the Translation Lookaside Buffer in Haswell, along with improving the branch predictor and doubling the bandwidth of the L1 and L2 caches.
These architectural improvements don’t yield any massive performance gains, but according to our own testing and reviews in the media you should expect to see a 2 – 8% improvement between Ivy Bridge and Haswell CPUs. While this isn’t much of a gain, Haswell CPUs do consume a lot less power than Ivy Bridge processors, both when idle and under load – something that anybody interested in their electricity bill should take note of.
In terms of overclocking, about the most you should expect to see from a Haswell CPU is something in the region of 4.4GHz, a good couple of hundred MHz lower than Ivy Bridge CPUs. This frankly is really quite disappointing and something we hope to see improved in later steppings as Intel refines the manufacturing process.
While we can't help but feel disappointed that Haswell doesn’t mark a big improvement in performance and overclocking, if you have an old system that needs upgrading it’s clearly a better choice than Ivy Bridge, especially as you get a free copy of the excellent racing game GRID 2 if you order from Scan
. To this end the 3XS team has designed a whole range of new PCs based around Haswell CPUs, from entry-level
gaming PCs, overclocked bundles
, gaming laptops
, graphics workstations
in between. However, owners of i5 3570Ks or i7 3770Ks would be better off spending their money on a new graphics card such as one of the NVIDIA GeForce 700-series