The Haswell Review: Intel Core i7-4770K & i5-4670K Tested
by Anand Lal Shimpi on June 1, 2013 10:00 AM ESTQuick Sync Performance
With more graphics EUs under the hood of all desktop Haswells (at least those launching today), Quick Sync performance improves a bit over Ivy Bridge. Intel claims to have focused heavily on improving the quality of Quick Sync transcodes however in my testing I saw a slight regression in quality. I didn’t have a ton of time to dig further to find out what’s going on but I plan on doing so post-Computex. Update: It looks like I wasn't alone in seeing an image quality regression. Haswell QSV image quality is worse than on IVB as Ganesh found.
The other big news is Handbrake now officially supports Quick Sync, something Ganesh will be testing with his HTPC look at Haswell.
Needless to say, Quick Sync performance is better on Haswell than on Ivy Bridge. And it’s even better if you happen to have a Haswell with a 128MB L4 cache.
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jmcb - Saturday, June 1, 2013 - link
I currently have an E8400 so the Haswell would be amazing....but I will go for amazing and value._zenith - Saturday, June 1, 2013 - link
"Even on the dekstop" - desktop. Just spelling gripe.I notice the gains over Nehalem are pretty much the same that you can *easily* get (just increase VCore and BCLK) out of overclocking Nehalem. So now they're neck and neck if you don't overclock the Haswell part. Maybe my system will be good for another year now! (i7-920 @ 4.0).
Da W - Saturday, June 1, 2013 - link
YeehaaaNow i can buy my Trinity + Radeon rig for the price of a haswell only rig. I know it will play every videogame made for xbox or PS4 for the next 7-8 years and make a perfect HTPC!
ChefJeff789 - Saturday, June 1, 2013 - link
I've been sitting on a first-gen Core i7 and this is still a little dissapointing. It is significantly quicker than mine, but I'm not sure that the upgrade is quite worth it for me yet as everything I use runs reasonably well. I am interested in the new socket type, though. I wonder if upgrading the motherboard with a decent Haswell would benefit me later on with a Skylake. It's hard to say; I haven't seen any firm specs on the socket-type for the Skylake chips.jwcalla - Saturday, June 1, 2013 - link
At this point I think there are more interesting places to put your tech dollars. A high-DPI display or triple monitors if you're into gaming, more SSDs if you need the space, a NAS or a nice tablet, etc. I'm in your camp with an i7-870 and nothing I do pushes it enough to test my patience.kyuu - Saturday, June 1, 2013 - link
Agreed -- unless you're loaded, there are far more interesting ways to spend your money in the PC arena than on the overhyped and underwhelming Haswell SKUs. Unless you're still stuck on Phenom II or Core2Duo.bji - Sunday, June 2, 2013 - link
Hey - I'm still "stuck" on a Phenom II (in my desktop; laptop is 15 inch rMBP with Ivy Bridge) and it's not that bad. It's significantly slower than the Bridges in single threaded apps but even so it's fast enough that I never notice, much like jwcalla never notices with his i7-870. And the Phenom II x6 has 6 real cores that do decently well in heavily multithreaded apps, really extensive compiles being the only thing that I ever do that would benefit at all from extra speed. 6 real cores holding their own reasonably well there. Even if an Ivy Bridge were 50% faster per core on the compiles (and it probably is), the x6 has 50% more cores so it kind of evens out ...rabbatabba - Sunday, June 2, 2013 - link
Anyone know if x264 is properly optimized for AVX2? Naiively, one might expect a 2x speedup for SIMD integer dominated code over the AVX1-only 2700k provided that the rest of the system is able to shuffle around data.http://com3.tv/wp-content/uploads/2012/09/Haswell-...
I am very curious as to the real-world performance gains of integer (and floating-point FMA) SIMD code in Haswell compared to previous generations.
Klimax - Sunday, June 2, 2013 - link
It has support for AVX2. Not sure in how many places, but over months there was stream of AVX2 code paths.plopingo - Sunday, June 2, 2013 - link
No need for me to upgrade with my I7 960@4.2ghzmaybe next time :D