The reviews are now out for AMD's brand new Bulldozer architecture, in
the form of the Zambezi FX 8120 & FX 8150 processors and they don't paint a pretty picture
of these flagship products. The chips use lots of power, run hot and
significantly underperform compared to their Intel competition. On top
of that, they are being marketed as 8 core processors, when they are
actually 4 core with an advanced form of multi-threading, due to the
siamesed nature of each dual processor module. Perhaps to counter this
negative publicity and try to restore some faith in the AMD brand, they
have released a roadmap for the planned improvements to the
architecture, all the way to 2014 – an ambitious timeline, given how
much and how unexpectedly things can change at the cutting edge of the
technology world.
Looking at the chart, one can see that the various architectures
Piledriver, Steamroller and Excavator all add up to between 30-50%
projected improvement by 2014 (subject to change without notice, of
course). These are all names designed to impart a tough-guy image to
their products to give one the impression that they must perform very
well, beating the competition into submission. Therefore, if they fail
to perform competitively against Intel, those names will continue to be
branding embarrassments like Bulldozer is, currently. As Intel is
already 20-50% faster right now depending on the benchmark,
how are these modest improvements possibly going to compete with
Intel's future products? AMD has already had a change of management at
the top recently, so we can only hope that the right CEO comes along and
turns them around, otherwise they may end up not manufacturing x86
processors at all in future, possibly becoming a GPU company only.
The main problem with the current Bulldozer architecture is that it's
very, very late to market. AMD started working on it four years ago in
2007, which is a very long time in the world of desktop processors, so
AMD have effectively released a new "old" product. The two important
things that it has going for it, are that it scales well with core count
and clock speed - those 8GHz overclock marketing demos weren’t
completely without merit. What we need to see is AMD improving
performance much more than the prediction slide they’ve released, more
like 100% or more perhaps, which is not really such an unrealistic
target to achieve in three years of design and process improvements.
Perhaps discarding this whole architecture and starting afresh with
fully discreet cores like on the Phenom might be the way forward? AMD
has recently let go some of its top-level management, so perhaps their
replacements can turn the company around?
So, even if AMD achieves this projected performance improvement and
more, will it really be enough to counter Intel, or will Intel
steamroller AMD’s Bulldozer back into submission?
Source:X-bit labs and Bulldozer block diagram courtesy of Hexus' FX 8150 review.
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