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[Guru3d] Core i7-5775C Priced at $479.99 - Page 5

post #41 of 105
Man, that Iris pro 6200 better be real good ..
post #42 of 105
$479 w/Iris Pro sounds like the pricing of an iMac upgrade.
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post #43 of 105
Quote:
Originally Posted by Boomstick727Β View Post

Tbh 4790K is best plug and play gaming chip anyway, sure you could buy a 5820K and overclock it for extra performance but for ease of use @ stock / less power use and cheap setup Z97 + 4790K makes sense. There's going to be a Skylake refresh next year, we could see something like a 6770K / 6790K. That would be a good time to move to Skylake imho, DDR4 memory prices will be even cheaper by then as well.

Its been a year since I jumped on the Z97 platform, being a noob in this hobby, I though Broadwell would bring something slighty better to the table. Im on a Core i3 right now, so my obvious upgrade was Broadwell. But seeing how this is turning out, I might as well get a 4790k instead and call it a day. But I will wait a bit longer and see what broadwell can do and if the price is less than what is being speculated.
post #44 of 105
Quote:
Originally Posted by methebestΒ View Post

Is this the one with the iris pro? If so I'm not surprised.

Do you know what Iris Pro is? It isn't a fancy, improved iGPU. It is literally nothing more than the quad-core die used in i5s and i7s with 6MiB L3 cache (as opposed to the maximum 8MiB) and a second die on the package containing 128MiB of eDRAM for the L4 cache, codenamed Crystalwell. If this price is in fact accurate, then you're paying $150 for a net gain of 126MiB vs a 4790k or 3770k. That's over $1 per mebibyte. We stopped doing that back in the '90s or the early '00s.

I hope it's a typo and the price is $380, which is much more fair. The eDRAM die is pretty expensive after all. I expect no more than $350 though. The flagship i7 has always been that price I think, at least on LGA-115#.
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post #45 of 105
Quote:
Originally Posted by CynicalUnicornΒ View Post

Do you know what Iris Pro is? It isn't a fancy, improved iGPU. It is literally nothing more than the quad-core die used in i5s and i7s with 6MiB L3 cache (as opposed to the maximum 8MiB) and a second die on the package containing 128MiB of eDRAM for the L4 cache, codenamed Crystalwell. If this price is in fact accurate, then you're paying $150 for a net gain of 126MiB vs a 4790k or 3770k. That's over $1 per mebibyte. We stopped doing that back in the '90s or the early '00s.

Nope, iris pro chips also feature an entirely different CPU die with a much bigger GPU portion (GT3 vs GT2)

This is haswell but the idea is the same with broadwell:



Normal desktop is 4+2, iris pro is 4+3e
 
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post #46 of 105
Quote:
Originally Posted by AlatarΒ View Post

Nope, iris pro chips also feature an entirely different CPU die with a much bigger GPU portion (GT3 vs GT2)

This is haswell but the idea is the same with broadwell:

Normal desktop is 4+2, iris pro is 4+3e

doh.gif You're right. I misread the Wiki page. That says:

Quote:
HD Graphics 5000 – GT3, 40 execution units, twice the performance of HD4xxx for compute-limited workloads, 15 W TDP SKUs, up to 704 GFLOPS
Iris Graphics 5100 – the same as HD Graphics 5000, 28 W TDP SKUs, but higher maximum frequency of 1.3 instead of 1.1 GHz,[4] up to 832 GFLOPS
Iris Pro Graphics 5200 – GT3e, the same as GT3 but with addition of a large 128 MB embedded DRAM (eDRAM) cache to improve performance of bandwidth-limited workloads[4]

Or, in other words, HD 5000 graphics and up are found in specialized low-power chips. That explains the shrunken L3 actually. More space for a bigger GPU. HD 4000 graphics are found in desktop chips with a few exceptions (not socketed though; they're BGA). HD 5000 graphics without the Crystalwell cache are found in several mobile U CPUs, primarily i5s but also a couple i3s.
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For Sale: [FS] Z97 system: Xeon and RAM
$160 (USD) or best offer
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RAMHard DriveHard DriveHard Drive
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ADATA SP900 - 64GB Scythe BIG Shuriken 2 Rev. B PNY Quadro 600 blower Windows 10 
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ASUS VE247H - 1080p Gateway FPD1960 - 1280x1024 Samsung S20D300 - 900p, portrait Rosewill RK9000I - Cherry MX Blue 
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post #47 of 105
I wonder f the loss of 2mb of L3 cache will affect performance....?
post #48 of 105
Perhaps we'll see some nice price cuts on 4690/4790Ks soon? rolleyes.gif
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post #49 of 105
Honestly, if it has Iris Pro, it's not a bad price. No, it's not going to be the CPU for people who need dedicated graphics, but if you're going to build a system with the main purpose being video editing, encoding, rendering, etc and want to do some light or mid-level gaming then this is probably the CPU to buy.

Then again, you could make the argument that a Core i7 without Iris may cost ~$350 at launch and you could easily purchase a $120 and throw that in the machine.

What Intel should be doing is releasing C versions of the Core i5 and Core i3 desktop chips, put Iris graphics in them and increase the chip price by $60-$70 and it'd be a real compelling value. The problem is that Intel doesn't really need to do this.
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post #50 of 105
Quote:
Originally Posted by ondoyΒ View Post

it's what we get when there's no competition... it just sucks...

this. At this point US or EU should be running antitrust against Intel for all practical purposes is a monopoly. Q6600 quads was 8 years back.
Edited by geox - 5/17/15 at 12:54am
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