Why Choose Intel Xeon
Why Choose Intel Xeon
Why Choose Intel Xeon
Intel® Xeon® processor-based workstations represent the premier • Intel Core i5 processor supports up to 4 computational cores,
platform used by industry innovators to create, test and modify their supports Intel Turbo Boost Technology, but does not feature Intel
ideas. If a user can accelerate an evaluation of an idea by as little 20% HT Technology. The support for Intel Turbo Boost Technology accel-
per day (1.6 hours), they can potentially reduce the design cycle time erates single-threaded applications like CAD, but add-on applications
by almost one business quarter. that support opportunities like digital prototyping, rendering and
ray-tracing options will have limited upside performance potential.
This paper explores key elements and differences that exist between
A 3.3 GHz Intel Xeon processor E3-1245 with Intel HT Technology
an entry-level workstation based on the Intel® Xeon® processor E3-
turned on can deliver up to 25% better performance.2
1200 family and desktop systems based on Intel® Core™ i3, Intel®
Core™ i5, and Intel® Core™ i7 processors. We will contrast each platform • Intel Core i7 processor supports 4 cores, fast frequencies,
on four key workstation pillars; processor performance, cache size, Intel Turbo Boost Technology and Intel HT Technology.
memory type/speed and graphics. It is similar to the Intel Xeon processor E3-1200 family but trails
in graphics performance and the availability of ECC memory.
Where They Are Similar • Intel Xeon processor E3-1200 family supports 4 cores and also
Entry-level workstation solutions based on the Intel Xeon processor supports the fastest available frequency (3.5 GHz Intel Xeon processor
E3-1200 family and business clients based on Intel Core i3/i5/i7 pro- E3-1280), Intel Turbo Boost Technology, and Intel HT Technology.
cessors have a foundation based on 32nm Intel® microarchitecture It is similar to the Intel Core i7 processor, but supports accelerated
code named Sandy Bridge. They both support a variety of computa- graphics performance for professional applications, called Intel®
tional core counts and varying sizes in Last Level Cache (LLC), Intel® HD Graphics P3000§ (available with specific SKUs), as well as
Advanced Vector extensions, and SATA 3.0. ECC memory.
Processor Frequency
Where They Are Different
Processor frequency represents only one small part of delivering
It is important to understand that delivered performance is not just
the best possible user experience. Possessing fast clocks with an
about frequency or the number of cores, it is also about the entire
inadequate infrastructure leads to stalls. Key components necessary
infrastructure that helps get data to where it is needed, when is it is
to avoid processor stalls include bandwidth, memory capacity, and
needed, so that it can be transformed into actionable information in
intelligent caching strategies that all help to accelerate data avail-
the shortest amount of time.
ability to the processors.
• Intel Core i3 processor supports a high clock frequency (up to • Intel Core i7 processor highest frequency is 3.4 GHz.
3.3 GHz) and Intel® Hyper-Threading Technology† (Intel® HT Tech-
• Intel Core i5 processor Highest Frequency is 3.3 GHz and is limited
nology). However, it is limited to only 2 physical computational
to 4 cores and only 4 threads.
cores and does not support Intel® Turbo Boost Technology.◊
• Intel Core i3 processor highest frequency is 3.3 GHz and is limited
A 3.3 GHz Intel Xeon processor E3-1245Δ with an 8M LLC supports to 2 cores and 4 threads.
Intel Turbo Boost Technology and delivers up to 2X better perf-
ormance1 than an Intel Core i3 processor-based business client.
Over-clocking On Workstations Professional Application Performance
Intel Turbo Boost Technology represents the ideal method to achieve SPECint*_rate_base2006 and SPECfp*_rate_base2006 are only
higher performance for technical workstations based on the Intel secondary indicators of performance.
Xeon processor E3-1200 family. The Intel Xeon processor 1280 Intel has engaged with many leading ISVs for workstation vendors to
supports a maximum single-core frequency of 3.9 GHz. create workload-optimized platforms that are capable of delivering
Note: Fully unlocked Intel Core processor parts that target the end-user experiences in line with the ISV’s expectation. As an example,
consumer/enthusiast market are associated with Intel Core i5/i7 Intel Xeon processor E3 with Intel HD Graphics P3000 is certified as
processor “K” SKUs and do not support Intel® vPro™ technology‡ “advanced” by Adobe Photoshop.* This advanced mode is not available
designed to enhance manageability and security for small, on Intel Core i7 processor with Intel HD Graphics 3000.
medium, and enterprise businesses. The following represents an abbreviated list of applications that
we have engaged with delivering workload optimized platforms:
Cache Size Adobe Photoshop, Adobe Premier Pro,* Autodesk AutoCAD,*
Cache for many applications remains an important contributor to Autodesk Inventor,* Autodesk Revit,* Bentley MicroStation,*
performance. Users with smaller cache solutions found in Intel Core Solid Edge* and SolidWorks.
i3 and Intel Core i5 processor-based solutions should expect slower
Memory Subsystems
performance. For example, a workstation based on the 3.3 GHz
Intel Xeon processor E3-1245 with an 8M cache outperforms a Animators, artists, engineers, and analysts are high-value workers
workstation based on the 3.3 GHz Intel Core i3-2120 processor at any company. They are paid to create, test, and modify ideas that
with a 3M cache by up to 1.9X.3 generate value for organizations. Providing a highly reliable system
is paramount, as it reduces the risk of lost work and helps maintain
• Intel Xeon processor E3-1200 family: 8M4
highly productive content creation opportunities.
• Intel Core i7 processor cache: 8M
One critical difference between entry-level workstations based on the
• Intel Core i5 processor cache: 6M
Intel Xeon processor E3-1200 family is the availability of ECC memory.
• Intel Core i3 processor cache: 3M
Quick Reference Tables – Processor Cores, Frequency Cache Sizes and Performance
Table 1. Ordered by Available Clock Frequency
Intel® Intel® Intel® Intel® Intel® Intel® Intel® Intel® Intel® Intel®
Core™ Core™ Xeon® Xeon® Core™ Core™ Xeon® Core™ Xeon® Xeon®
i3-2100 i5-2400 processor processor i3-2120 i5-2500 processor i7-2600 processor processor
Feature processor processor E3-1225 E3-1235 processor processor E3-1245 processor E3-1275 E3-1280
Frequency (GHz) 3.1 3.1 3.1 3.2 3.3 3.3 3.3 3.4 3.4 3.5
Cores 2 4 4 4 2 4 4 4 4 4
Cache Size (M) 3 6 6 8 3 6 8 8 8 8
SPECint*_rate_
70 116 116 142 73 120 145 148 148 151
base2006
SPECfp*_rate_
68 100 100 109 71 104 110 111 111 113
base2006
If the user’s billing rate is as low as $40 an hour then one memory 2.18x
error could cost an organization up to $320. If the user billing rate is
$80 an hour, then the cost of single blue screen could be as high as
$640. Both are well above the investment of the ECC premium. 1.66x
Graphic Performance
“Intel HD graphics provides a significant change in how we deliver
1.00 1.05x
graphics to commodity, business and entry-level workstation users,”
said Kirk Skaugen, Executive Vice President, Intel Architecture Group.
Kirk noted at the Intel Developers Forum in China that “in 2006 we
had promised that we would improve the graphics performance
10 times by 2010. Today, we are 25x better!”
Core i5 processor- or Intel Core i7 processor-based platforms. Intel® Xeon® processor E3-1275 (3.4 GHz), Intel® HD Graphics P3000
Intel HD Graphics P3000, only available on the Intel Xeon processor Figure 2. Intel® HD Graphics P3000 advantage6
E3-12X5 series, provides for a powerful professional 3D and video-
editing experience without the need to invest in an entry-level
discrete graphics card.
Appendix. Intel® Xeon® Processors vs. Intel® Core™ Processors Graphics Performance
Intel® Core™ i3-2100 Intel® Core™ i5-2500 Intel® Core™ i5-2500K Intel® Xeon® Processor
Feature Processora Processorb Processorc E3-1275d
3DMarkVantage 1.2.0 - 3DMark Score
5,644.52 5,941.81 9,364.57 12,313
(Entry Preset @1024x768)
3DMarkVantage 1.2.0 - Graphics Score
4,926.36 4,874.05 8,136.52 10,638
(Entry Preset @1024x768)
3DMarkVantage 1.2.0 - CPU Score
10,031.80 17,334.03 17,113.40 23,337
(Entry Preset @1024x768)
a
Intel® Core™ i3-2100 processor SND 3100/2C4T SMT On/N/A/2x256KB/3MB (No Turbo) DH67BL Micron 4 GB (2x2 GB) DDR3 1333, Seagate1 TB HDD, HD-100 with 8.15.10.2246 (BIOS:BLH6710H.86A.0079, Intel INF 9.2.0.1009).
b
Intel® Core™ i5-2500 processor (1024 MB L2 Cache, 6144 MB L3 Cache, 3.3 GHz), Intel® DH67BL (BIOS: BLH6710H.86A.0079, Memory: Micron_MT16JTF25664AZ-1G4 CL9 4 GB (2x2 GB). Graphics: HD-100 High Definition Graphics
200, driver: 8.15.10.2246, Storage: Seagate* 1073741824000 HDD) Windows* 7 Ultimate x64 N/A.
Intel® Core™ i5-2500K processor (1024 MB L2 Cache, 6144 MB L3 Cache, 3.3 GHz), Intel® DH67BL (BIOS: BLH6710H.86A.0079, Memory: Micron_MT16JTF25664AZ-1G4 CL9 4 GB (2x2 GB). Graphics: HD-200 High Definition Graphics
c
300, driver: 8.15.10.2246, Storage: Seagate* 1073741824000 HDD) Windows* 7 Ultimate x64 N/A.
d
Intel® Xeon® processor E3-1275 (Quad-Core, 3.40 GHz, 8 MB L3 cache, D2 stepping), BIOS version ASNBCPT1.86C.0061.P00, EIST Enabled, Turbo Enabled, HT Enabled, 8 GB memory (2x4 GB DDR3-1333 UDIMM), Intel® Integrated
Graphics Card, graphic driver version 15.21.1.64.2259 (vertical sync: Application settings), one 21” LCD Display (1024x768, 32bit color quality, 75 Hz), 3 Gb/s SATA SSD 160G, Windows* 7 Ultimate x64 SP1 OS.
∆
Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. See www.intel.com/products/processor_number for details.
†
Requires an Intel® HT Technology enabled system, check with your PC manufacturer. Performance will vary depending on the specific hardware and software used. Not available on Intel® Core™ i5-750. For more information including details on
which processors support HT Technology, visit http://www.intel.com/info/hyperthreading.
◊
Requires a system with Intel® Turbo Boost Technology capability. Consult your PC manufacturer. Performance varies depending on hardware, software and system configuration. For more information, visit http://www.intel.com/technology/
turboboost.
§ Optimized Intel® HD Graphics P3000 only available on select models of the Intel® Xeon® processor E3 family. To learn more about Intel® Xeon® processors for workstations, visit www.intel.com/go/workstation.
‡ Intel® vPro™ Technology is sophisticated and requires setup and activation. Availability of features and results will depend upon the setup and configuration of your hardware, software and IT environment. To learn more visit http://www.intel.com/
technology/vpro.
1
Claim of up to 2X better performance is based on Intel performance estimates for workstations based on the Intel® Xeon® processor E3-1245 and the Intel® Core™ processor i3-2100 on the SPECint*_rate_base2006 benchmark.
2
Claim of up to 25% better performance is based on Intel performance estimates for workstations based on the Intel® Xeon® processor E3-1245 and the Intel® Core™ processor i5-2400 on the SPECint*_rate_base2006 benchmark.
3
Claim of up to 1.9X better performance is based on Intel performance estimates for workstations based on the Intel® Xeon® processor E3-1245 and the Intel® Core™ processor i3-2120 on the SPECint*_rate_base2006 benchmark.
4
Intel® Xeon® processor 1225 is limited to 6M LLC.
5
Study can be found at http://portal.acm.org/citation.cfm?id=1966477.
6
Intel® HD Graphics P3000 performance advantage based on Intel internal data collection on 3DMark* Vantage as of April 2011.
7
Benchmark tests were performed and submitted by HP’s workstation performance marketing organization.
Software and workloads used in performance tests may have been optimized for performance only on Intel microprocessors. Performance tests, such as SYSmark and MobileMark, are measured using specific computer systems, components,
software, operations and functions. Any change to any of those factors may cause the results to vary. You should consult other information and performance tests to assist you in fully evaluating your contemplated purchases, including the
performance of that product when combined with other products.
For more information go to http://www.intel.com/performance
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