Intel Core 2 Extreme Processor X6800 &
Intel Core 2 Duo Processor E6700 Review
The battle between Intel and AMD really
heats up with the latest offering from Intel, the Intel Core 2 Extreme
Processor X6800 and Intel Core 2 Duo Processor E6700 that is truly the
next generation of 64-bit computing. With the X6800 aimed at the
hardcore gamer or business professional that wants the best, the E6700 makes a nice addition
to those that wish to have a happy medium between both worlds.
In order to fully test both these
processors to their full potential, Intel kindly sent the following
review kit that included the following system configurations:
Intel Core 2 Extreme Process X6800
-
2.94Ghz dual core
processor
-
1066 FSB
-
4MV unified L2 Cache
-
Intel Virtualization
Technology
-
Execute disable bit
-
Intel extended
memory 64 technology (Intel EM64t)
Intel Core 2 Duo
processor E6700
-
2.66Ghz dual-core
processor
-
1066 FSB
-
4MB unified L2 cache
-
Intel Virtualization
Technology
-
Execute disable bit
-
Intel extended
memory 64 technology (Intel EM64t)
Intel Desktop Board
D975XBX
-
Intel LGA775 socket
processors, including new Intel Core 2 Duo and Intel Core 2 Extreme
processors
-
1066 & 800 Front
Side Bus Speeds
-
One PCI Express x16
graphics support with an optional configuation of 2 x 8 graphics
support
-
Intel Hi-Definition
Audiot with 7.1 surround sound
-
Dolby Digital PC
Entertainment Experience
-
Six PCI express x1
support
-
DDR2-667/533 support
-
8GB total memory
support with ECC capability
-
Advanced memory
timing capability
-
Four serial ATA
ports (3 GB/s)
-
Intel Matrix Storage
Technology supporting RAID, 0,1,5,10 and Advanced host Controller
Interface
-
Serial Peripheral
Interface (SPI)
-
Intel PRO/1000 LAN
As you can see, the
review kit is no stranger to performance and needless to say, both CPU
configurations are a true powerhouse. With that said, the installation
of the both the motherboard and the CPU was rather straightforward,
although a little nerve racking at the best times. However, once the
CPU's were installed, it was time to benchmark the new processors from
Intel but first, a little about the features of the new processors from
Intel... Features
-
Intel® Wide Dynamic
Execution is a combination of techniques (data flow analysis,
speculative execution, out of order execution, and super scalar)
that Intel first implemented in the P6 microarchitecture used in the
Pentium® Pro processor, Pentium® II processor and Pentium® III
processors.
-
Now with the Intel
Core microarchitecture, Intel significantly enhances this capability
with Intel®Wide Dynamic Execution. It enables delivery of more
instructions per clock cycle to improve execution time and energy
efficiency. Every execution core is 33% wider than previous
generations, allowing each core to fetch, dispatch, execute and
retire up to four full instructions simultaneously. Intel Wide
Dynamic Execution also includes a new and innovative capability
called Macro-Fusion. Macro-fusion combines certain common x86
instructions into a single instruction for execution. Combined,
Intel Wide Dynamic Execution increases instruction execution
efficiency thus increasing performance and energy efficiency.
-
Intel® Intelligent
Power Capability is a set of capabilities designed to reduce power
consumption and design requirements. This feature manages the
runtime power consumption of all the processor's execution cores.
The result is excellent energy optimization enabling the Intel Core
microarchitecture to deliver more energy-efficient performance for
desktop PCs, mobile PCs and servers.
-
The Intel® Advanced
Smart Cache is a multi-core optimized cache that significantly
reduces latency to frequently used data, thus improving performance
and efficiency by increasing the probability that each execution
core of a dual-core processor can access data from a
higher-performance, more efficient cache subsystem.
-
Intel® Smart Memory
Access improves system performance by optimizing the use of the
available data bandwidth from the memory subsystem and hiding the
latency of memory accesses. Intel Smart Memory Access includes an
important new capability called "memory disambiguation," which
increases the efficiency of out-of-order processing by providing the
execution cores with the built-in intelligence to speculatively load
data for instructions that are about to execute before all previous
store instructions are executed.
-
The Intel® Advanced
Digital Media Boost is a feature that significantly improves
performance when executing Streaming SIMD Extension (SSE/SSE2/SSE3)
instructions. They accelerate a broad range of applications,
including video, speech and image, photo processing, encryption,
financial, engineering and scientific applications. The Intel
Advanced Digital Media Boost feature enables these 128-bit
instructions to be completely executed at a throughput rate of one
per clock cycle, effectively doubling, on a per clock basis, the
speed of execution for these instructions as compared to previous
generations.
...continued
The Conroe Processor
Both these dual-core processors are part of the new Conroe family of
processors with the E6700 running at 2.66Ghz and the X6800 running at a
powerful 2.93Ghz. Although speed was the penultimate performance measure
in CPU's, speed has now taken a back seat in the dual-core processor market,
proving that CPU speed is no longer the key indicator in performance.
Bigger is not always better
Probably one of the first things you will notice about the Conroe family
of processors is the size of the CPU that fortunately fits into
existing socket 775 architecture. A bonus for users of existing 775
motherboards, however older 775 motherboards may have compatibility
issues so it's advised to check your distributors website before making
any rash purchases. Another interesting fact
is that the Conroe processors now use the Core microarchitecture that is
based on the Pentium M processor core and with this new inclusion of
dual-core processing, HyperThreading Technology (HTT) has been replaced
because the dual-core processors now performs the same function of two CPUs.
In
laymen's terms, HTT processors basically emulated another processor
which of course slowed the CPU down, however with dual-core processors,
there are virtually two cores in the CPU which is great for multitasking
and is also the future of computing, especially for powerful office packages or
gaming. Another new feature of
the Conroe is that the Advanced Smart Cache of the microarchitecture now
shares the L2 cache which is dynamically allocated based on workload,
unlike previous dual-core processors. This new design allows for greater
flexibility that means the entire 4MB of the L2 can either be joined or
split, depending on applications or games. Green
Power
The Core microarchitecture uses quite a bit less power than its older
siblings which in turn creates less heat and strain on the CPU and
motherboard. With that said, our current CPU (Pentium Extreme Edition
955), although a powerhouse does generate quite a bit of heat even
with the might of the BlueOrb II cooling fan that attempts to cool both
cores. Thankfully this is a thing of the past with Core
microarchitecture, ensuring safer running speeds and less heat problems.
Intel Virtualization Technology
Both Conroe CPU's also supports Intel Virtualization Technology that basically
allows the user to run different operating systems at the same time such
as Windows XP and Linux through independent partitions. With
Virtualization Technology and in conjunction with a software layer that
apportions hardware resources to each operating system (Virtual Machine
Monitor), a single platform can effectively function as several virtual
machines, with each running a different operating system and each
sharing the platform's hardware resources.
With the variety of additional features on the Conroe, it
not only makes your PC experience exceptionally smooth but also
exceptionally safe with enhanced security, virtualizations and true
64-bit computing which although was once the future is now the present.
CPU's with dual-core processors will truly have an advantage over
single-core CPU's when Microsoft's new operating system is released
early next year.
Benchmarking
PCMark05 was used to
benchmark a variety of real-world computer tests that included
startup speeds, operating system and application performance, 2D &
3D rendering, multitasking and Hard Drive tests. In total there are
11 tests with each one designed to represent a certain type of PC
usage. By running these tests, PCMark05 stresses the components in a
similar manner as they are stressed in normal home or work usage.
However to keep things less verbose... seeing is believing.
PCMark05 Professional (System)
Core 2 Extreme X6800 |
(7634) |
Core 2 Duo E6700 |
(7348) |
Pentium EE 955 |
(6348) |
Pentium D 950 |
(5934) |
PCMark05 Professional
(Memory)
Core 2 Extreme X6800 |
(6023) |
Core 2 Duo E6700 |
(5730) |
Pentium EE 955 |
(4903) |
Pentium D 950 |
(4302) |
PCMark05 Professional
(CPU)
Core 2 Extreme X6800 |
(7501) |
Core 2 Duo E6700 |
(6734) |
Pentium EE 955 |
(6129) |
Pentium D 950 |
(5458) |
As you can see from the
results, both Conroe CPU's work remarkably well when compared to the
relatively new Pentium EE 955 and Pentium D 950. The revamped
microarchitecture makes a huge difference to computer speeds, proving
that this CPU will run on a variety of operating systems at its full
potential from day one.
3DMark06 Professional
3DMark06 is the latest version in the
popular 3DMark series of gaming benchmarks and requires DirectX 9.0
compatibility to truly give your computer that professional graphical
edge4. 3DMark06 was used to measure a variety number of graphical
aspects of the operating system under the powerful DirectX 9.0 with a
default resolution of 1280x1024 in32 bit.
Core 2 Extreme X6800 |
(2594) |
Core 2 Duo E6700 |
(2312) |
Pentium EE 955 |
(1999) |
Pentium D 950 |
(1723) |
Once again both the
X6800 and E6700 do a remarkable job at rendering high-end graphics,
ensuring that both these CPU's will run all games exceptionally well.
Sandra 2007 Benchmarking
SiSoftware's Sandra 2007 was
another benchmarking program that was used to re-test real-world benchmarking which
is also the world leader in benchmarking software that also has the ability
to compare the processor to almost every CPU in existence.
Sandra 2007 CPU
Arithmetic
Core 2 Extreme X6800 |
(34567) |
Core Duo E6700 |
(24662) |
Pentium EE 955 |
(19234) |
Pentium D 950 |
(17438) |
Sandra 2007 CPU
Multimedia
Core 2 Extreme X6800 |
(206143) |
Core Duo E6700 |
(167234) |
Pentium EE 955 |
(74325) |
Pentium D 950 |
(69324) |
Unlike PCMark05
Professional, the results were a little diverse with the Core 2 Extreme
X6800 being the king of the hill and blew just about everything else
away.
Gaming
Quake 4 is the latest in
3D first-person shooters from id Software and Raven and although based
on the DOOM 3 engine, the graphics are amazing and is a true
benchmark for modern CPU's and graphic cards. As with Quake 4, the Core
CPU's scored equally similar results in Doom 3.
Quake 4
Core 2 Extreme X6800 |
(232.4) |
Core Duo E6700 |
(221.4) |
Pentium EE 955 |
(185.3) |
Pentium D 950 |
(175.3) |
Doom 3
Core 2 Extreme X6800 |
(212.4) |
Core Duo E6700 |
(201.4) |
Pentium EE 955 |
(145.1) |
Pentium D 950 |
(135.2) |
Both games were run in a
resolution of 800x600x32-bit for some extremely impressive results.
Unofficially, FarCry and Prey performed spectacular results at high
detail with little or no slowdown present. For gamers looking to upgrade
and give their games that true Hollywood-style quality, I would highly
recommend that you invest in either on of these CPUs.
Conclusion
In conclusion, the Intel Core 2 Extreme X6800 and Core Duo E6700 are
definitely leaders in the field of CPU's with high performance, low
power consumption and backward compatibility with the 775 motherboards.
Unfortunately for now, the price of both CPU's are quite expensive but
for those wanting the best performance available, it's hard not to
consider either one of these CPU's. |