However, AMD will have a future in the market of processors. During a private presentation they Reds finally presented the Zen – a completely new x86 core, which will allow them to get out of the limitations that plague years Bulldozer and his successors. We learned new details about architecture, we got acquainted with the performance and comparisons to Intel chips. I must admit that it is really good.
As is known, the main purpose of which is posed Zen was the increase of the number of instructions per cycle (IPC) by 40% compared to the last core Excavator. Going very ambitious at a time when between successive generations of processor performance increases by 5-10% suddenly. This has been achieved through a radical restructuring of the architecture.
Perhaps the biggest change is the introduction of buffer micro-operations – an element absent in Bulldozerach and used successfully for years by Intel. So far cores AMD had so often done μ-opsy taken from other buffers.
r e k l m and a
Another important change is vaguely recognized “enhanced forecasting
branches “to select the right instruction, extension
Unit executive and planning instructions – this
bring 175% more capacity planner and 150% higher
the width of the user relative to the core Excavator.
To increase throughput, the core comprises a Zen extended
preloading mechanism manual and a new hierarchy
buffer: 8 MB of shared L3 cache, a unified memory
L2 and L1 separated buffers for instructions and data. This is a new
system memory allows the performance up to 500% better than
He also appeared finally mechanism SMT (simultaneous
multithreading). Each core will be able to handle two
threads, so the level of “multi”, presented by IBM
architecture Power8 (up to eight threads per core) a little lacking – but allows
to establish an equal battle with Intel, the more that is not
It is here to share the Floating Point unit, and each thread
He will be appeared as an independent core.
As a result of all the improvements made in lithography 14 nm
(The same process as used in the graphics chips Polaris)
They resulted in a 40% higher rate than the IPC Excavator at
maintaining the same level of energy consumption per cycle.
Faster than Intel?
Interestingly, AMD decided to compare your processor
Intel CPU – Broadwell-E Core i7-6900K. The comparison is quite
controversial. Czipowi blue bolted clocks (from 3.2 / 3.7 GHz
to 3 GHz), explaining that the desire to normalize the test because
prototype processor was also clocked the clock. AMD provides
However, the processor cores Zen, which hit the market will be
already had the faster clocks.
The test consisted of rendering graphics in Blender, in
multithreaded operating load, benefiting from all
cores. AMD did not reveal any numbers, but gathered
they saw that the red chip was slightly faster.
Time for Zen
Dr. Lisa Su, AMD’s chief, assured that the first desktop
processors now goes to its partner companies, and their overall
announced the availability of the first half of 2017 years. IN
the second half of 2017 appear to have had a first APU with
the new cores. There is no reason to doubt it, to show
presented already operating computers such czipami,
complemented by graphics cards RX 480.
Expected are also structures for the market of embedded devices,
although no specific details were not disclosed. mentioned by
it’s about the server platform Naples, built around a 32-core,
64 weft chips Naples – it will handle two of these chips on
If you are interested in a detailed analysis
new architecture cores, refer to AnandTechu,
the editors probably the most comprehensively studied the matter.
We can only say that AMD’s return to market performance
x86 is a great message – may eventually Intel
cease to do chips interesting only for manufacturers of laptops
and I will show that he can afford more than productivity gains row
5% per generation.