Intel Core i7-2820QM Mobile Sandy Bridge Processor

Article Index:   

Test Systems and SiSoft SANDRA

The Packard Bell machine that Intel sent us for testing with Sandy Bridge, had easy access to primary system components via a couple of panels on the underside of the notebook.  However, since we were under the gun with this piece, we weren't able to do a full tear-down for you.  You can thank Intel for pulling in NDA times and making us work over the holiday break .  Our significant others certainly did.  Break?  What break?




Intel Core i7-2820QM Mobile Processor and H67 Express IO Hub Chip

The Core i7-2820QM comes packaged in a 1224 pin rPGA (Pin Grid Array) with alternative BGA (Ball Grid Array) versions available for direct solder to the PCB.  Regardless, like previous designs, a half twist with a flat head screw driver will release the processor from its socket.  On the top right you can see Intel's new H67 Express IO chip for the rest of the system's multitude of connectivity options.

 HotHardware's Test Systems
 Intel, old and new, head-to-head

System 1:
Intel Core i7-2820QM
(2.3GHz - Quad-Core)
Intel NAR00 LA-6211P Mobile Motherboard (H67 Express Chipset)
Intel HD Graphics 3000
2x2GB DDR3-1333
On-Board Ethernet
On-board Audio
Intel 160GB SATA SSD
Windows 7 x64 Ultimate

System 2: 
Intel Core i5 540M
(2.53GHz - Dual-Core)
Asus K42F Notebook
2x2GB DDR3-1066
Intel  HD Graphics 2000
On-Board Ethernet
On-board Audio
Intel 160GB SATA SSD
Windows 7 x64 Ultimate

System 3: 
Intel Core i7 920XM
(2GHz - Quad-Core)
Clevo Style-Note W870CU Notebook
2x2GB DDR3-1333
NVIDIA GeForce GTX 280M
On-Board Ethernet
On-board Audio
Intel 160GB SATA SSD
Windows 7 x64 Ultimate

 System 4:
Intel Core 2 Duo X9000
(2.8GHz Dual-Core)
Dell XPS M1730 Notebook
2X2GB DDR2-800MHz
NVIDIA GeForce 8800M GTX
On-Board Ethernet
On-board Audio
Intel 160GB SATA SSD
Windows 7 x64 Ultimate



Our Sandy Bridge Mobile Test System...

Preliminary Testing with SiSoft SANDRA 2011B
Synthetic Benchmarks

We began our testing with SiSoftware's SANDRA 2011B, the System ANalyzer, Diagnostic and Reporting Assistant. We ran three of the built-in subsystem tests that partially comprise the SANDRA 2011 suite with Intel's new Core i7-2820QM  Sandy Bridge processor (CPU Arithmetic, Multimedia, and Memory Bandwidth).  All of the scores reported below were taken with the processor running at its default clock speed of 2.3GHz with Turbo Boost scaling to 3.4GHz depending on thread-level workloads.



SiSoft SANDRA CPU Test


SiSoft SANDRA Multimedia Test


SiSoft SANDRA Memory Bandwidth Test

In terms of raw CPU throughput, the new Core i7-2820QM mobile processor shows it's faster than Intel's previous generation Core i7 975 desktop chip under SANDRA's Processor Arithmetic and Multi-Media tests.  These early simple test results are obviously encouraging.  In terms of memory bandwidth, Intel's new mobile processor architecture is also able to keep pace with the triple channel DDR3 memory and processor cache performance of an X58 chipset-based system in some cases, offering over 18GB/s of aggregate memory bandwidth.  Remember that the Core i7-2820QM is doing this with a dual channel DDR3 configuration as well.  Again, Intel's Sandy Bridge mobile architecture is stacking up very well in these tests.

Related content

Comments

blog comments powered by Disqus