Monday, September 26, 2011

Processor Whispers,Of cold and hot chips Blogs

Processor Whispers
Of cold and hot chips Blogs

If the Intel IDF in Silicon Valley celebrates, then AMD is also
traditionally not far to the numerous journalists and analysts who had
traveled to present its latest products, this year especially the bulldozer.

With a lot of liquid helium, AMD managed to required it on the opening
day of the Intel Developer Forum, a bit of attention. So they could heat
an FX prototype (with three modules switched off, 2-volt core voltage)
on the world record of 8.429 GHz - with cool -230 ° C. With the help of
experienced overclocker AMD rose to a record level of an aged Celeron D
in 65 nm technology with P4 architecture by a whopping 1.4 percent and
could thus enter the Guinness Book of Records.


Mobile AMD's Bulldozer Trinity (right) presents itself under the Deus Ex
i5. Only one corner of the IDF conference were removed but also to
admire some bulldozers at room temperature, including the successor of
Llano, code named Trinity. The expected early next year, already have
the chip is slightly improved core Bulldozer Piledriver, to about 50
percent faster graphics. The team with four cores Piledriver could
conjure in a demo with a much smoother image Deus Ex on the notebook
display as the comparison notebook with Intel Core i5. The former ran
but with DirectX 11 and tessellation, the latter with DirectX 9 without
those.

In addition, a Octanuclear FX showed his skill in comparison to a
tetranuclear Intel Core i5 "in the same price range" and overtook him in
the open-source Handbrake H.264 benchmark by 19 percent. DiRT at 3 with
2560 x 1600 pixels AMD was somewhat knowledgeable. Here was an FX-8150
in the AMD 990FX board with DDR3-1600 with an Intel Core i7 980 in Asus
X58 with DDR3-1066. The competitors were respectively 83 fps at 81 in
about equal, which could probably be due to the two inserted AMD Radeon
6970 with Crossfire. After all, he emphasized AMD, the components cost
processor, memory and board with the FX-8150 only $ 515 compared to the
$ 1,279 list price of the Intel system.

AMD is fighting not only against Intel, but on another front against
Nvidia. And so an Acer tab joined with AMD-Z-01-APU (Bobcat, Dual Core,
Windows 7) to equal to two "competitive" Tablets of the browser
benchmark peacekeepers from Futuremark, one equipped with Intel Atom
Z670 and one with Nvidia Tegra 2 out of Android 3.2. Result: 1367 points
for Bobcat, 1089 for 2 and Tegra distant second with only 652 points of
the atom. Intel had been published on the IDF other benchmarks such as
Linpack and SunSpider, the Atom Z670 by 50 to 80 percent before the
Tegra two placed ...
Anti-aliasing

Hotter than AMD's discuss selected individual results, however, the new
circulating on the Web with results known benchmarks such as Cinebench,
which can look much less top of the bulldozer. The Czech Obrovsky
bloggers on his site has a number of such results for the AMD FX-8120 at
3.1 GHz and 4 and listed the FX-8150 at 3.6 and 4.2 GHz and immediately
incurred the wrath of the AMD fans gathered .


Intel has donated the Ivy Bridge three display ports, but AMD was
already Eyefinity with five displays in a row. So he has for a direct
comparison of the FX-8150 at 4.2 GHz can compete against an equally
clocked Athlon X6 1100T, both with Turbo mode turned off. The results in
Cinebench 10 and 11.5, in SuperPi and Fritz Chess are sobering for the
same number of threads, though not really surprising, is still the old
Athlon architecture is a universal pipeline per integer core more,
larger caches, a separate front end and its own FPU. Obrovskys results
of the bulldozer are prototypes for the same thread count usually do
about 25 percent below those of the Phenom. Even at full-core
performance of the proposed six-core Athlon FX X6 at the eight-core
Cinebench 11.5 with 7.38 to 6.95 points.

Perhaps Obrovsky but still has an old prototype caught. The Stepping B2
should be according to his information, but they range from the
bulldozers to the latest B2g B2a. In addition, some performance-eating
bugs are known, the fix might by a processor driver can reduce or even
before them C0 B3 or later probably makes all the finish off. For Linux
there at least since the end of July, a kernel patch (not yet in the
distributions), which avoids the frequent mutual throw out of cache
lines (thrashing) for an aliasing problem in the L1 instruction cache.
He is under "[PATCH] x86.AMD: Correct F15h IC aliasing issue" to discuss
gmane.org, including Linus Torvalds. In particular, some SPEC CPU2006
benchmarks, will suffer from this aliasing problem.

Anyway, Obrovsky published on his blog also results with nominal stroke
and switched to turbo, as the processors run normally. And since it
looks much better for the FX-8150 with 3.6 GHz compared to the Phenom II
X6 1100T at 3.3 GHz. Thanks to the turbo creates FX continues to 6.93
points in Cinebench 11.5, the Athlon X2 sags on the other hand, from
5.92. Even when most of the other benchmarks is the Athlon FX from the
old, provides rather skirmishes with the i7 2600K and sometimes even
with the Core i7 990x. With TrueCrypt AES, which clearly supports the
new AES-commands, the bandwidth is almost five times higher than the
Phenom. Much confusion about time that we sometimes can even lend a hand.

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