It is very simple:
If you never want a raid controller and never want a BM, Aja or Matrox card, then you are OK. If you may want one in the future, you are out-of-luck.
If you want a system that is (when heavily overclocking) around PAR with a 920, then the 2600K is the way to go. I you want something that performs about equal to a 950, forget about a 2600 CPU.
How many times are we going to do this.
1) you most certainly can use a Decklink, AJA, Matrox with sandy quite telling people they cant.
They work 100% fine. End of stinking story dude.
Have you tried one? NO! have you benchmarked one? NO do you have any experience to draw from? NO..
We do.. so stop spreading this false propaganda.
And to end this once and for all I am making Eric stop working on systems to finally benchmark the sandy bridge WITH a raid card.
2) round and round we go. Only YOUR 920 has any kind of decent numbers on PPBM
Everyone else's falls on their face when compared to the 2600k. that included every X58 processor other than the 980x.
And only those with CRAZY raid arrays beat it..
In a REAL world test then 2600 does even better.
I don’t know why you have to cling to this absurd idea that X58 beats the 2600.
A REAL world test:
4 WD 1Tb Sata 64 Meg Cache 600 Drives in 2 Raid 0 arrays
Video material - AVCHD 1080P 24 Frame Each Cut to 30 minutes of material
Export Codec - H264 HDTV 1080P 24 Preset Default
4 Effects per Layer - Fast Color Corrector, Brightness & Contrast, Video Limiter, Sharpen
Each Layer Scaled to 50% for 4 frame PinP view.
I7 2600K 3.4GHZ Turbo to 4.7GHz <---winner
16GB Blackline 1600 CL 9
3 Layer - 31:35
4 Layer - 34:35
I7 980X 4GHZ <----looser
12GB Blackline 1600 CL 9
3 Layer - 32:30
4 Layer - 35:25
Potentially, true. Practically, however, I would not call the i7-9xx a good BFTB any longer because it requires spending an extra several hundred to several thousand dollars in coolers and drives just to perform as well as it should. In fact, I would not go for an i7-9xx quad-core CPU without increasing the total system budget to more than $2,500 USD.
And as I had demonstrated many times (based on the systems that I had submitted to the PPBM5 site), no i7-9xx quad-core system without a discrete hardware RAID controller card performs as well as my current i7-2600K system that's also without a RAID card unless I apply an extremely massive overclock to the i7-9xx (which in my environment is completely impossible without spending thousands of extra dollars USD for a liquid nitrogen CPU cooler). The best overclocked score at the maximum comfortable overclock out of my i7-950 when I had the CPU was 209 s (with 16GB of RAM) @ 4.0 GHz - and that's still slower than the 202 s achieved by the i7-2600K @ 3.8 GHz. Now I know why: Without the RAID controller to take the burden off the CPU, the scores for the MPEG2 DVD and especially H.264 BR encodes are quite a bit slower than it should have been. In addition, the communication between the ICH10R and the X58 IOH takes place at only half the bandwidth of the connection between the LGA 1155 CPU and the P67 PCH, resulting in the X58 platform being not as efficient as it should be without the discrete RAID card installed in one of the PCIe 2.0 x16 slots.
And in my testing the i7-950 is actually a bit slower than the i7-920 on a per-clock basis even though they are both Bloomfield CPUs. This might be due to the QPI clock being slower on the 950 than on the 920 at the same GHz clock level. (After all, the i7-950 does not need its BCLK to be raised as high as the i7-920 does just to reach any given overclocked speed.)
Message was edited by: RjL190365
That’s your reply? Come on Harm you are a man of many words...
So then are you saying the only reason the sandy bridge wins is over 4 gig ram?
But you would also argue elsewhere that triple channel out does dual channel
So tell me how do I retest that’s fair in your eyes. Since we have the inferior dual channel sandy with 16G max
And the X58 triple channel with 24max?
SB with 8? SB with 12?
X58 with 16? Or 24?
Surely the bottom line is that this is not a good time to build a new system? The i7 range is getting past its sell-by date, and the Sandy Bridge range is still in its infancy.
You guys are trying to compare apples with oranges. Harm promotes a system which delivers absolute power and speed, while Scott builds solid commercial systems which deliver all the power and speed that the overwhelming majority of users need. This is like comparing a Ferrari Dino with my BMW 530d touring!
It is a few months only till we get the second generation Sandy Bridge motherboards, and then the source of all this bickering will be history.
Patience is the order of the day!
BTW where did this unfounded rumor start that you could not use Blackmagic, AJA, Or Matrox cards with the SB platform. I have been testing, selling, and shipping I/O cards on these since they launched. Remember, most of the I/O cards are PCI-e 1X cards which work fine on the SB boards without changing the Video card slot. There are also 1155 boards out there that give you other slot configs for the 4X cards as well. This rumor is completely false.
BTW thanks for the extra work
Thanks Eric. However, one would need a motherboard with a PLX and/or an NF200 extender chip in order to use all of the PCIe slots on an LGA 1155 motherboard that has three x16 physical PCIe slots. My Asus P8P67 Pro, without the NF200 or PLX chip, shares its PCIe x4 slot with both PCIe x1 slots, the eSATA controller and the second (front panel) USB 3.0 controller chip. Setting the x4 slot to its full bandwidth means that I could no longer add any additional PCIe cards to that system if both of the other x16 slots are occupied - nor could I use any eSATA drives, and I could only use the two onboard USB 3.0 ports.
Message was edited by: RjL190365
We are not talking about using all the slots only adding a 1X card
16x is off the processor and isolated (assuming you only have a vid card) however there are generally 2 16x when adding something into the 2nd 16x is when that get reduced to 2x 8 electrical
(Will have a definitive answer as to if adding a raid card into the other 16x will reduce video or drive ability in a day or so) tired of hearing about that as well..
There is an additional 8 PCIe X1 off the south bridge if you will or PCH. An average board looks like this.
2) GB Ethernet
4) PCIe to PCI bridge
5) PCIe to USB3
6,7,8) actual 1x slots
Each 1x is capable of 5GB/s
The DMI is 20GB/s
That means 4 of the 1X can be active at full bandwidth at once, (where it seems people arrived at the 20 lanes) or all 8 at 1/2 bandwidth.
Let me also remind you that I know of nothing that saturates the PCIe bus 100% not even raid cards (assuming an 8x or 4x slot) and certainly not a capture card.
In various benchmark tests of PCI vs PCIe there were little to no difference in ability. (raid cards, capture cards, pro audio interfaces)
All that to say again nothing uses the full bandwidth.
Looking at all 8 PCIe 1x slots/connections I don’t see 4 being used simultaneously under any circumstance. Even adding a pro audio interface into the mix.
So again adding a capture/preview card to the sandy bridge platform works 100% right and with 100% performance ability. (not counting the driver issues with matrox)
On a side note to that.. for pro audio we have had EVERY slot filled and it works flawlessly
Including using 2 RME Madi cards which do 64 I/O each card and 4 UAD cards (DSP cards)
And doing it at the lowest buffer setting. (only audio guys will get this)
Suffice it to say that’s a lot of bandwidth being used
and just to add to that we had all 128 INs and OUTs on the 2 madi cards running with the UADs @ 95%
Now I do have to mention that 2 x PCI madi will not work on SB.. at least not the board we use.
But we just shipped a system with 1 PCI madi and 3 PCIe madi for live recording 128 @ 96k. (or 256 @ 48k)
Also it had a 4 drive raid 5 for the recording drive.
So much for lite bandwidth ability on SB platform