Core i5 650 - 660 and 661 processor review -
Hyper Threading | H55 PCH | Nehalem overview
Inevitably, all chips based on the Nehalem family will have between two and eight cores, and will be capable of handling two independent software threads per core. This is called Hyper-Threading, Intel's name for the concept. It allows a processor to execute two different code streams at pretty much the same time.
This was a feature found in Intel's single-core Pentium 4 processors but largely discontinued with the advent of multi-core chips, but it's essentially the same technology as before. With two threads per core, Core i3, i5 and i7 chips will pack no less than four or eight logical cores depending on the model.
If you look at the screenshot below you can see that happening. Mind you that the Core i3 540, 530 and then Core i5 650, 660 and 661 have Hyper-Threading, the Core i5 750 series weirdly enough does not (unfortunately) have Hyper-Threading. All Core i7 processors are hyper-threaded as well.
Here we see Core i5 661 - It has two physical cores, but hyper-threaded we gain two virtual logical cores.
Placing the Nehalem processor family in perspective
Intel has got a lot in store with the Nehalem family processors right now. We placed all data that we know of into a chart, also this is a handy chart to see which processor has which socket/package and what more you can expect anno Q1 2010 desktop processor wise (we left out the mobile parts as that makes things even more confusing).
|Model||LGA socket||Core/Thread||Clock||Turbo boost||L3 cache||TDP||Price|
|Core i7 975||1366||4/8||3.33||3.60||8||130||999|
|Core i7 950||1366||4/8||3.06||3.46||8||130||562|
|Core i7 920||1366||4/8||2.66||2.93||8||130||284|
|Core i7 870||1156||4/8||2.93||3.60||8||95||562|
|Core i7 860||1156||4/8||2.80||3.46||8||95||284|
|Core i7 870s||1156||4/8||2.80||3.46||8||82||337|
|Core i5 750||1156||4/4||2.66||3.20||8||95||196|
|Core i5 750s||1156||4/4||2.66||3.20||8||82||259|
|Core i5 670||1156||2/4||3.46||3.73||4||73||284|
|Core i5 661||1156||2/4||3.33||3.60||4||87||196|
|Core i5 660||1156||2/4||3.33||3.60||4||73||196|
|Core i5 650||1156||2/4||3.20||3.40||4||73||176|
|Core i5 540||1156||2/4||3.06||none||4||73||143|
|Core i5 530||1156||2/4||2.93||none||4||73||123|
PCH - The Platform Controller Hub H55 chipset
To facilitate the Clarkdale processors, Intel needed to come out with a new chipset, in fact they'll be released two of them each with their own derivative sidekicks. This is needed to run the integrated graphics via what's labeled as the Flexible Display Interface (FDI). Intel is offering two new chipsets to the market, H55 and H57/Q57. P55 actually should also work fine, yet obviously not with the embedded IGP. We will actually put this to the test today.
Now you might think the platform will be cheap and well, honestly it's average at best. Intel will charge its partners 40 to 44 USD per chip per 1K units. In pale comparison, Intel charges 40 USD for a P55 chip to the motherboard manufacturers.
So enough tech chatter, let's put the gear to the test. We received an H55 motherboard and Core i5 661 dual core processor for a test run. Let's check out what this 196 USD processor will bring to the table. But first, let's have a look a some photos of the processor and motherboard itself.
We review the Core i5 3570K Ivy bridge processor. Will Ivy Bridge be the processor series everything you expected? Go find out in this extensive review here at Guru3D.
Core i5 2500K and Core i7 2600K review
Today we test and review Sandy Bridge, the Intel Core i7-2600K and Intel Core i5-2500K processors. We will pair the 2600K processor with the Intel Desktop Motherboard DP67BG and also run a test with the Intel Core i5-2500K processor on a Intel DH67BL motherboard
Core i5 655K and Core i7 875K processor review
Intel today releases two new processors targeted at a somewhat more enthusiast audience. Yes, processors for tweakers and overclockers. On socket LGA 1156 Intel now releases two K series processors. The 32nm Intel Core i5-655K processor has the very same specifications as the Core i5 650; it will operate at 3.2 GHz, will feature two cores with Hyper-Threading technology, sport 4MB of L3 cache and will be made using 32nm process technology. The difference between the 650 and 655K is the unlocked multiplier only. Then we have the enthusiast class Intel Core i7-875K processor, it has the very same specifications as the Core i7 870; it will operate at 2.93GHz, will feature four cores with Hyper-Threading technology, sport 8MB of L3 cache and will be made using 45nm process technology. The only difference between the two central processing units (CPUs) will be the unlocked multiplier on the 875K chip, which will allow overclockers and enthusiasts to easily boost clock-speed of the product without the necessity of overclocking other parts of their systems.
Core i5 650 - 660 and 661 processor review
The time has come for Intel to debut a new line of mainstream 32nm processors, which we have all learned to recognize under the codename 'Clarkdale', the new CPUs will be aimed at the mainstream desktop PC segment and will complement the chip maker's Core i3 and Core i5 line of products. The Intel processor lineup will include the Core i3 530 and 540 models, as well as the Core i5 650, 660, 661, and 670, which will be featured with Hyper-Threading, 4MB of L3 cache and support for dual-channel DDR3-1333 memory. Well, that and an integrated GPU as well of course. Guru3D will put the Core i5 650, 660 and 661 to the test.