[adrianlee]

PCOnline - Intel Core i7 870 Tested

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[adrianlee]

Originally Posted by Vozer

Well, here are all of their tests. I edited the graphs a bit for an easier look.






Conventional Software


Phenom II 955 3.2G: 10089
                      11064


Phenom II 955 3.2G: 8934
                      6740
                      10781


Phenom II 955 3.2G: 10497
                      2916


Phenom II 955 3.2G: 21.608
(lower is better)


Phenom II 955 3.2G: 7875



Phenom II 955 3.2G: 69
(lower is better)


Games


Phenom II 955 3.2G: 77.8


Phenom II 955 3.2G: 53



Phenom II 955 3.2G: 60


Phenom II 955 3.2G: 63.5



Phenom II 955 3.2G: 2421

Power Consumption


Phenom II 955 3.2G: 138
                      224
(lower is better)


Summary: Core i7-870 beat Core i7-920 in every test, except the Memory Benchmark ones while consumed less power than Core 2 Quad Q9550.

Originally Posted by Vozer

Actually, in an other review, they also tested the Phenom II X4 955 (along with i5-750, i7-920 and Q9550) with exactly the same setup.

I will add the Phenom II results.

XtremeSystems Forums - View Single Post - Core i7 870 Tested

[psolord]

These are very nice results. Mhz to Mhz, Lynnfield has nothing to fear. Now the only question is how hot (or not) it will run, how overclockable it will be and how much the overall plattform will cost. I still can't believe that Intel went for two 8xPCIe slots for the P55, instead of two 16xPCIe slots.

Thank God that both ATI and Nvidia are making dual gpu cards, but what about Larabee? I guess P55 will still be out when Larabee hits the market and who knows, maybe Intel manages to drop a bomb. I wouldn't want to be stuck with a plattform that will not be able to give the full performance of a dual Larabee gpu setup.

[haylui]

Originally Posted by psolord

These are very nice results. Mhz to Mhz, Lynnfield has nothing to fear. Now the only question is how hot (or not) it will run, how overclockable it will be and how much the overall plattform will cost. I still can't believe that Intel went for two 8xPCIe slots for the P55, instead of two 16xPCIe slots.

Thank God that both ATI and Nvidia are making dual gpu cards, but what about Larabee? I guess P55 will still be out when Larabee hits the market and who knows, maybe Intel manages to drop a bomb. I wouldn't want to be stuck with a plattform that will not be able to give the full performance of a dual Larabee gpu setup.

Core i9 is your choice!!!

[psolord]

Originally Posted by haylui

Core i9 is your choice!!!

Yeah, if i win the lottery until then!

Core i9 will bring nothing more than two more cores/four threads. I doubt that they will be of any use in gaming. The 32nm will be more of a requirement to fit the extra transistors, than a feature actually.

I guess that current gen cpus (core i5/7 in particular) will be just shy of providing next gen gpus with all the data they will need. I believe that we are quickly moving to a new cpu limited era, regarding DX9/DX10 games (unless ridiculous levels of AA are used).

Now, DX11 will be a totally different thing altogether, and most current cpus, AMD and Intel alike, will suffice. The limitation of the bandwidth of the slots that will host the graphics cards, is not a good choice though.

I never liked Core i7 due to their temperature as well as the pricing. I hope Core i5 and/or Lynnfield based Core i7s will bring some improvement on this!

[NextGen_Gamer]

Originally Posted by psolord

These are very nice results. Mhz to Mhz, Lynnfield has nothing to fear. Now the only question is how hot (or not) it will run, how overclockable it will be and how much the overall plattform will cost. I still can't believe that Intel went for two 8xPCIe slots for the P55, instead of two 16xPCIe slots.

Thank God that both ATI and Nvidia are making dual gpu cards, but what about Larabee? I guess P55 will still be out when Larabee hits the market and who knows, maybe Intel manages to drop a bomb. I wouldn't want to be stuck with a plattform that will not be able to give the full performance of a dual Larabee gpu setup.

Keep in mind that the P55 chipset has nothing do with the PCI-E support on the motherboard: the main PCI-E hub is built directly on the "Lynnfield" die. So although it may "only" be x8 for a dual PCI-E x16 slot setup, those lanes are connected directly to the CPU resulting in a much lower latency. I actually think that GPUs may perform slightly better on a "Lynnfield"/P55 setup instead of the current "Bloomfield"/X58, just because I highly doubt that even the highest-performing GPU actually makes use of all the bandwidth afforded by a PCI-E x16 v2.0 slot.

[snakeoil]

Originally Posted by NextGen_Gamer

Keep in mind that the P55 chipset has nothing do with the PCI-E support on the motherboard: the main PCI-E hub is built directly on the "Lynnfield" die. So although it may "only" be x8 for a dual PCI-E x16 slot setup, those lanes are connected directly to the CPU resulting in a much lower latency. I actually think that GPUs may perform slightly better on a "Lynnfield"/P55 setup instead of the current "Bloomfield"/X58, just because I highly doubt that even the highest-performing GPU actually makes use of all the bandwidth afforded by a PCI-E x16 v2.0 slot.

you are wrong , first off the lynfield northbridge is crippled just 2x8, second off, the northdbridge inside de cpu is mcm, its not on the same die of the cpu, so no advantage, just a crippled cpu.and expensive motherboard (150 dollars at least) while you can have an amd motherboard with 2x16 pcie express electrical, fx790 since 89 dollars.

Newegg.com - JetWay JHA04-LF AM2+/AM2 AMD 790FX ATX AMD Motherboard - AMD Motherboards

[NextGen_Gamer]

Originally Posted by snakeoil

you are wrong , first off the lynfield northbridge is crippled just 2x8, second off, the northdbridge inside de cpu is mcm, its not on the same die of the cpu, so no advantage, just a crippled cpu.and expensive motherboard (150 dollars at least) while you can have an amd motherboard with 2x16 pcie express electrical, fx790 since 89 dollars.

Newegg.com - JetWay JHA04-LF AM2+/AM2 AMD 790FX ATX AMD Motherboard - AMD Motherboards

"Lynnfield" is not an MCM package; the PCI-E hub, memory controller, and CPU are all on the same die. However, on the dual-core "Arrandale" and "Clarkdale" processors, the PCI-E hub is on a separate chip in the same package. And I specifically mentioned how I do not believe the extra bandwidth on a full PCI-E x16 v2.0 slot is actually being utilized by modern-day GPUs.

[psolord]

Originally Posted by NextGen_Gamer

Keep in mind that the P55 chipset has nothing do with the PCI-E support on the motherboard: the main PCI-E hub is built directly on the "Lynnfield" die. So although it may "only" be x8 for a dual PCI-E x16 slot setup, those lanes are connected directly to the CPU resulting in a much lower latency. I actually think that GPUs may perform slightly better on a "Lynnfield"/P55 setup instead of the current "Bloomfield"/X58, just because I highly doubt that even the highest-performing GPU actually makes use of all the bandwidth afforded by a PCI-E x16 v2.0 slot.

Dang! I always forget about the PCI-e lanes being built inside the chip!

I do beleive that the cpu/gpu latency will be somewhat reduced, but i specifically remember a websites benchmark suite, that had pitted a 2X16X Pci-e mobo against a 2X8X Pci-e mobo and there were some performance issues on the 8X Pci-e system, albeit in very high resolutions!

What i fear, is that DX11 and tech advancements in general, will load the Pci-e bus even more, in the years to come. Crysis 2 for example could be even more loaded with textures and geometry and when two gpus on two 8X lanes would be used, then we could have some serious problems.

Thank God for dual gpu cards, but don't thank God for not having 100% scaling on every game (btw, even dual gpu cards have shown somewhat lesser performance from time to time, when compared with two full cards on 16X lanes)!

[Barrin]

Originally Posted by NextGen_Gamer

"Lynnfield" is not an MCM package; the PCI-E hub, memory controller, and CPU are all on the same die. However, on the dual-core "Arrandale" and "Clarkdale" processors, the PCI-E hub is on a separate chip in the same package. And I specifically mentioned how I do not believe the extra bandwidth on a full PCI-E x16 v2.0 slot is actually being utilized by modern-day GPUs.

the built in MCH does has it's advantages, however it does puzzles me on why don't they make it triple channel but let it be dual channel instead. It seems a slightly higher clocked lynnfield can perform on par with a triple channel "bloomfield" but taking less power. As for the PCI-E lanes i hope maybe soon there'll be a 3rd party chip to support the 2nd PCI-E X16 to a full 16X rather than 8x.

[jeuda]

i5 will affordability to budget users... but why i7 has lga1156?

[psolord]

Originally Posted by jeuda

i5 will affordability to budget users... but why i7 has lga1156?

Lynnfields will be branded as both Core i7s and Core i5s! This one with the 8 threads, will be an i7.

[jeuda]

Originally Posted by psolord

Lynnfields will be branded as both Core i7s and Core i5s! This one with the 8 threads, will be an i7.

hmm that rang a bell. what's gonna happen to LGA1366...

[psolord]

Originally Posted by jeuda

hmm that rang a bell. what's gonna happen to LGA1366...

It will be fine!

No seriously, it will host the higher end Nehalems, as well as the 32nm six core thingy that's coming our way. Yeah i don't like Intel's policy on this subject, but heck i never opted for the high end processors anyway. As long as the lower end does not miss the performance features of it's bigger brothers and is overclockable, i am pretty happy.

I reckon that the i7 870 is one such cpu.

[Barrin]

Originally Posted by psolord

It will be fine!

No seriously, it will host the higher end Nehalems, as well as the 32nm six core thingy that's coming our way. Yeah i don't like Intel's policy on this subject, but heck i never opted for the high end processors anyway. As long as the lower end does not miss the performance features of it's bigger brothers and is overclockable, i am pretty happy.

I reckon that the i7 870 is one such cpu.

I smell history might be repeating itself in a similar way where in the past the i7 870 = P3 tulatin core.