iXBT Labs - Computer Hardware in Detail






Intel Core Generations Comparison

« Previous page

     Next page »

Today we're going to compare the perfomance of the three Intel Core architechtures—Nehalem, Sandy Bridge, and Ivy Bridge—in as equal conditions as possible.


For tests, we shall have only Intel Core i7 processors, since the 1st Gen Core i5 had larger L3 cache than those of the 2nd and 3rd generations. Also, in our tests, clock rate should not exceed 2.4 GHz, this being the uncore limit for the 1st Gen quad-core Intel Core processors for the LGA1156 platform (we're dealing with a lot of cores here, verily). Why do we need that? Becuase the memory configuration is the same as that in LGA1155: both platforms are designed for dual-channel controllers. The second 'iteration' of LGA1155 gained support for DDR3-1600, but it's obviously not needed for today's tests.

Platform Nehalem Sandy Bridge Ivy Bridge
CPU Core i7-875K (HT on) Core i7-875K (HT off) Core i7-2600K (HT on) Core i7-2600K (HT off) Core i7-3770K (HT on) Core i7-3770K (HT off)
Process technology, nm 45 45 32 32 22 22
Core clock, GHz 2.4 2.4 2.4 2.4 2.4 2.4
Cores/threads 4/8 4/4 4/8 4/4 4/8 4/4
L1 Cache, I/D 32/32 32/32 32/32 32/32 32/32 32/32
L2 cache, KB 4x256 4x256 4x256 4x256 4x256 4x256
L2 cache, KB 4x256 4x256 4x256 4x256 4x256 4x256
L3 cache, MB 8 8 8 8 8 8
Uncore clock, GHz 2.4 2.4 2.4 2.4 2.4 2.4

As you see, here we have three processors tested both with and without Hyper-Threading. All the power-saving technologies are disabled, all the multipliers are set to 24. Microarchitecture is the only thing that matters now. You might say this testing is mainly theoretical like that spherical cow, and you'll be right. However, theoretical doesn't mean uninteresting for us (and we hope for you, too). The point is that we're going to take a look at performance improvements of Ivy Bridge. We'll also continue our study of how efficient Hyper-Threading really is.

Platform Motherboard RAM
LGA1155 Biostar TH67XE (H67) Corsair Vengeance CMZ8GX3M2A1600C9B (2x1333 MB; 9-9-9-24)
LGA1156 ASUS P7H55-M Pro (H55) Corsair Vengeance CMZ8GX3M2A1600C9B (2x1333 MB; 9-9-9-24

Write a comment below. No registration needed!

Next page »

Article navigation:

Page 1: Introduction, testbeds

Page 2: Tests

Page 3: Tests cont'd, final thoughts

blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook

Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.