boost technology to the 32nm process. It is also
Intel's first processor with six cores, for enhanced
system performance in suitably optimized applications.
The Core i7-980X will supplant the four-core, 45nm
Core i7-975 Extreme Edition as Intel's strongest CPU,
at the same price. But how much better is it?
The Core i7-975 and the Core i7-980X look identical;
both have a base clock speed of 3.33GHz, TDP cooling
rated at 130 watts, and three channels of DDR3-1066RAM. But the i7-980X's six cores give apps 12 threads
to work with, versus the i7-975's 8 threads. Also,
where the i7-975 shares an 8MB L3 cache across its
cores, the new CPU has a 12MB cache.
We tested each processor in a PC running Windows 7
Ultimate Edition (64-bit), with 6GB of RAM, a 1TB
hard drive, and an ATI Radeon HD 5870 graphics card.
Though Intel aims the Core i7-980X at gamers, the new
CPU outperformed the Core i7-975 only marginally in our
test. In Unreal Tournament 3 (at 1920 by 1200 resolution
and high settings), the Core i7-980X cranked out 159.9
frames per second versus the Core i7-975's 155.5 fps.
In Dirt 2, the Core i7-980X managed 73.3 fps, as against
the Core i7-975's 71.7 fps.
games don't take full advantage of multithreading. But
if you work with multitreaded apps such as Adobe Photoshop, Blender, and Sony Vegas Pro, spending $$$$ for a Core i7-980X processor may make sense. The clearest improvement will be in apps that sprawl across as many cores as possible, like Maxon's Cinema 4D animation software.
Though the i7-980X may not blow the i7-975 out of the water
now, the performance bottleneck for gamers lies in the pausity
of multithreaded offerings and that situation is changing. If
you can afford this $$$$ chip, it may be worth the cost of
entry. As multicore CPUs and multicore optimized application
grow more and more common, you'll be able to put all six of
its core to good use.