E6750 vs E6850

[bandieramonte]

I've been looking the technical differences between the E6750 and the E6850 processors and the only difference lays on its operating frequencies. I just want to know if the E6850 is simply an overclocked version of the E6750 or if E6850 has improvements on its architecture that naturally provides it with more speed without overclocking it.
Thanks.

[FZ1]

They are basically the same chip except the 6750 has an 8x multi and the 6850 has a 9x multi. Same rated bus speed, etc. If you are going to overclock, the extra multiplier can be useful but it's not essential.

[bandieramonte]

So, does this mean that if I overclock the E6750 to 3 ghdz, then I would exactly have a E6850? If this is true, it would be very stupid to buy E6850 for $100 more.

[maj0r_pawnage]

well yeah you would, but dont forget you can also oc the e6850 , and it can be found @ pretty good prices on ebay

[bandieramonte]

Exactly, but if E6850 is simply an overclocked version of E6750, the It wouldn't make much sense to buy E6850 an overclock it, because it would mean like to overclock a E6750 even more. So I think it would be better to buy a E6750 and overclock it past 3ghdz with a good processor cooler. Please correct me if I'm wrong.

[FZ1]

So, does this mean that if I overclock the E6750 to 3 ghdz, then I would exactly have a E6850? If this is true, it would be very stupid to buy E6850 for $100 more.

Yep. However, if you want to get a mcuh higher overclock, the E6750 may not OC as much because you would end up being limited by your FSB or RAM due to the lower multiplier. For example, if the highest FSB you can get with your MB and/or RAM is 400 you would have the following:

E6750 = 8x400 = 3.2GHz
E6850 = 9x400 = 3.6GHz

That is the benefit of the more expensive CPU. That's why the "extreme" versions have the multiplier unlocked so you can raise it to 10, 11, etc and keep your FSB low if your hardware has limitations.

[Bio-Hazard]

I'd go for the cheaper CPU and OC it (that's what I've done), its just the cheaper way of doing things.................... . If you're not into OC'ing the E6850 is the safer route.

[bandieramonte]

Yep. However, if you want to get a mcuh higher overclock, the E6750 may not OC as much because you would end up being limited by your FSB or RAM due to the lower multiplier. For example, if the highest FSB you can get with your MB and/or RAM is 400 you would have the following:

E6750 = 8x400 = 3.2GHz
E6850 = 9x400 = 3.6GHz

That is the benefit of the more expensive CPU. That's why the "extreme" versions have the multiplier unlocked so you can raise it to 10, 11, etc and keep your FSB low if your hardware has limitations.

Let's suppose my motherboard is the EVGA 122-CK-NF67-T1 LGA 775 NVIDIA nForce 680i LT SLI ATX Intel Motherboard, having FSB 1333/1066MHz. Then according to your equation:

E6750 = 8x1333 = 10.6GHz
E6850 = 9x1333 = 12GHz

Is this correct?

[Bio-Hazard]

Yep. However, if you want to get a mcuh higher overclock, the E6750 may not OC as much because you would end up being limited by your FSB or RAM due to the lower multiplier. For example, if the highest FSB you can get with your MB and/or RAM is 400 you would have the following:

E6750 = 8x400 = 3.2GHz
E6850 = 9x400 = 3.6GHz

That is the benefit of the more expensive CPU. That's why the "extreme" versions have the multiplier unlocked so you can raise it to 10, 11, etc and keep your FSB low if your hardware has limitations.

Let's suppose my motherboard is the EVGA 122-CK-NF67-T1 LGA 775 NVIDIA nForce 680i LT SLI ATX Intel Motherboard, having FSB 1333/1066MHz. Then according to your equation:

E6750 = 8x1333 = 10.6GHz
E6850 = 9x1333 = 12GHz

Is this correct?

Nope, completely and totally wrong..............

1333 is the quad pumped rating, the internal FSB of the CPU's is 333 MHz making them

8 x 333 = 2.66
9 x 333 = 3

.........

[FZ1]

Yep. However, if you want to get a mcuh higher overclock, the E6750 may not OC as much because you would end up being limited by your FSB or RAM due to the lower multiplier. For example, if the highest FSB you can get with your MB and/or RAM is 400 you would have the following:

E6750 = 8x400 = 3.2GHz
E6850 = 9x400 = 3.6GHz

That is the benefit of the more expensive CPU. That's why the "extreme" versions have the multiplier unlocked so you can raise it to 10, 11, etc and keep your FSB low if your hardware has limitations.

Let's suppose my motherboard is the EVGA 122-CK-NF67-T1 LGA 775 NVIDIA nForce 680i LT SLI ATX Intel Motherboard, having FSB 1333/1066MHz. Then according to your equation:

E6750 = 8x1333 = 10.6GHz
E6850 = 9x1333 = 12GHz

Is this correct?

Nope, completely and totally wrong..............

1333 is the quad pumped rating, the internal FSB of the CPU's is 333 MHz making them

8 x 333 = 2.66
9 x 333 = 3

.........

Right - the effective FSB is FSB x 4 and the effective DDR2 speed is FSB x 2 so keep this in mind when dealign with RAM.

[bandieramonte]

Wait wait. I'm confused, this is new to me.

This 333 is the internal FSB of the processor, ok that I understand. But what I don't still get is, how to increase this 333? On what does it depends this increase? On the motherboard? Please post an example with this EVGA motherboard I just posted. With this motherboards, up to how much can I overclock both of this processors?

[kenc51]

I'd also go for the E6750 over the E6850.

You will be able to OC the E6850 more than the E6750 or to the same MHz but with lower voltage, but you're not going to notice the real world difference between the two, even if one is clocked ~400MHz faster.
What you will notice is the hole in your pocket after buying an E6850 ;)

Most E6750's will OC to ~3.7GHz with high voltage while most E6850's will OC to between ~3.8 to 4.2GHz with high voltage.

Anything over ~3.6GHz is normally too much for air cooling btw.

[FZ1]

Wait wait. I'm confused, this is new to me.

This 333 is the internal FSB of the processor, ok that I understand. But what I don't still get is, how to increase this 333? On what does it depends this increase? On the motherboard? Please post an example with this EVGA motherboard I just posted. With this motherboards, up to how much can I overclock both of this processors?

In your BIOS there is an option to increase/decrease the FSB. See the overclocking how to thread in the Intel CPU section http://forums.legitreviews.com/about10789.html