Gadgetory

hey guys and welcome back to our brand boxed I'm your host Matt and today we're taking a look at Intel's latest Core i7 5775 see last month until I announce their Broadway a desktop lineup which included two socketed CPUs the core a 750 775 C and the core i5 56.75 C both of which are fully unlocked meaning you can overclock them and we'll touch on that a little later in this video but for now I'm going to try and tell you everything you need to know about Intel's 5th generation Core processors as quickly as possible first of all this is a minor release from Intel as they're essentially shrinking Haswell down from 22 nanometers to this 14 nanometers with Broadwell that's said although Broadwell is essentially just a die shrink Intel has made a few important improvements aside from power consumption and the reduced die size that you can expect remove into a smaller node intel's worked on greatly improving the performance of their integrated graphics both the new core i5 and core i7 processors are equipped with the iris pro 6200 graphics engine whereas previous desktop models use the HD graphics 4600 the previous 4600 had 20 execution units whereas RS pro 6200 has more than twice as many at 48 you use this huge increase in execution units is great but what really makes the iris pro 6200 so much faster is the new L 4 cash or EDR AM codename crystal well this 128 Metcash significantly boosts the bandwidth available to the GPU tripling the bandwidth that was previously available as you might expect the core i7 5775 C is a quad core CPU that support type of threading affording it eight threads the cores are clocked at 3.3 gigahertz with a maximum turbo frequency of 3.7 gigahertz which is lower than any Haswell Core i7 processor the 5775 C also has a smaller l3 cache than any of the desktop Haswell i7 processors that just six megabytes compared to eight megabytes for the previous generation still we expect around attempts and increase in instructions per clock so the light occation low clock's 5775 see should be able to rival the house well i7s despite the fact that they look faster on paper that being said let's jump into the benchmarks where I'll be primarily discussing the 5775 C's performance compared to its predecessor the 4790k first let's have a look at Cinebench in the multi-threaded test the 5775 C's scored 775 CV marks which was 12% less than the i7 4790k in the single threaded senior bench test the performance gap was quite similar with the 5775 C clocking in 150 to 13% less than its predecessor of the 4790k next we tested with Microsoft Excel 2013 using the popular Monte Carlo workflow test the 5775 C performed well as expected taking 4.1 seconds to complete the task using the 7-zip built-in benchmark we recorded the results using a 32 megabytes Neri the 5775 C scored 20 2854 mints compared to 27,000 233 by the 4790k a 16% difference we used handbrake to test the encoding performance and the 5775 C record an average of 50 point 5 frames per second compared to the 4790k which managed 58 frames per second just shy of 13% more power consumption is where we see the 5775 C shine during a hand break encoding test it use just 114 watts compared to the 166 watts consumed by the 4790k this translate to a saving of over 31% next we'll look at the integrated graphics performance another area where the 5775 C should outperform the 4790k all of our games tests were on the lowest graphics settings possible just to give the best chance of realistically playable performance first let's take a look at Grand Theft Auto 5 using the 5775 C we managed a healthy 40 point 4 frames per second this dwarfed the 27.3 frames per second managed by the 4790k and was a 47% performance increase a testament to the new IRS Pro 6200 graphics engine secondly let's look at the results from thief again we see the 5775 see outperform the 4790k with 31 point 5 frames per second compared to just 18 point 2 frames per second from the 4790k this is 73% more and the difference between completely unplayable and what I call barely playable finally in Dragon Age Inquisition we again saw the 5775 see perform really well at average 41 frames per second compared to just 21 frames per second by the 4790k this works out to be a whopping 95 percent increase and certainly takes the game from unplayable to pretty smooth next we're gonna retest handbrake this time with both processors locked at 4 gigahertz by this we mean the turbo boost feature and speedstep technology are both disabled as you can see operating at the same clock frequency the 5775 C is actually four percent faster than the 4790k with clock speeds matched in pseudo bench the 5775 c was again four percent faster than 4790k in the multi thread test with clock speed smashed in Cinebench the 5775 CA was again four percent faster than the 4790k in the multi thread test finally we retested power consumption in hand break through the clocks matched and the 5775 c used 25% less power than the 4790k proving without a doubt that the new Broadway l'architecte is in fact more efficient than Haswell at this point you'll notice haven't shown in the overclocking results the 5775 see that aegyo wasn't the best overclocker it required quite a bit of extra voltage just to be stable at 4.3 gigahertz whereas the 4790k easily hits 4.5 gigahertz with adjustments only being made to its clock multiplier when compared to house well it looks like the new Broadwell CPU is a much more efficient as demonstrated in our clock the clock benchmarks here the 5775 c was not only slightly faster than the 4790k but it also consumed around 25% less power unfortunately though as we found when testing Braswell little earlier in as Roxby buffs these new Broadwell processes are clocked far too low to give any of their predecessors any real trouble the Intel iris pro graphics 6200 solution was able to dramatically improve the graphics performance although that page does come at a slight price premium making the 5775 see a bit more expensive than the 4790k well though the 5775 did crush AMD's latest apu it also costs around three times as much so AMD won't really be under threat until iris pro makes its way into desktop core i3 and pentium processors all intel 9 series motherboards will support Broadwell though a BIOS update will be required it seems unlikely that 8-series motherboards is in chipset such as the zero 7 will support Broadwell processors at this point finally all indications point it's strong availability next month in early August thanks for watching this quick review of the core i7 5775 see let me know what you think in the comments this has been Matt for Hardware unbox hit like hit subscribe and we'll see you next time