claims. We almost got there in 2004 with ATI's Radeon 9600 XT-based Mobility Radeon 9700. Yet, at that time, mobile processing still fell short. Intel released its Core Duo mobile processors two years later, but new games made the elder GPU obsolete. While CPU and GPU manufacturers continuously chase the rainbow of efficiency, technological convergence appears as mythical as the pot of gold at the rainbow’s end.

There have been "desktop-replacement” PCs that are notebooks almost in name only, such as Eurocom’s recently-reviewed Core i7-based D900F Panther. Perhaps light enough to carry from your office to the parking lot, such behemoths appeal mostly to those who want a desktop they can take home rather than a computing device they can take anywhere. This explains the drive by Intel to put Core i7 technology in a smaller, more heat-efficient product suitable for a wider user base, which we recently revealed as Clarksfield.

Always near the forefront of mobile technology, Asus jumped at the chance to build a gaming notebook using the new processor series. Yet, in an effort to reduce both heat and cost, Asus chose a far different product than the i7-920XM that Chris reviewed. Running 400 MHz slower and with 2MB less cache, the G51J’s i7-720QM allows Asus to price its product within easy reach of many mainstream gamers. Let’s see how it stacks up to our most modern gaming notebooks.

Asus G51J-A1 Configuration Comparison
Model	Asus G51J-A1	Eurocom D900F Panther	MSI GT725-212US
CPU	Intel Core i7-720QM 1.60 GHz-2.80 GHz, Quad Cores DMI 2.5GT/s, 6.0MB L3 Cache	Intel Core i7-965 Extreme 3.20 GHz-3.46 GHz, Quad Cores QPI 6.4GT/s, 8.0MB L3 Cache	Intel Core 2 Quad Q9000 2.00 GHz, Quad Cores FSB-1066, 6.0MB L2 Cache
Chipset	Intel PM55 Express PCH	Intel X58/ICH10R	Intel PM45/ICH9M
RAM	4.0GB PC3-8500	6.0GB DDR3-1333 (as listed)	4.0GB DDR2-800
Graphics	Nvidia GeForce GTX 260M 1.0GB	Nvidia GeForce GTX 280M 1.0GB	ATI Radeon HD 4850 512MB
Display	15.6" LED Backlit 1080p (1920x1080)	17" WUXGA (1920x1200)	17" WUXGA (1920x1200)
HDD	2x Seagate 7200.4 320GB, No-RAID	2x Seagate 7200.4 500GB RAID 0	WD Scorpio Black 320GB
Sound	Integrated HD Audio, Soft EAX 4.0	Integrated HD Audio	Integrated HD Audio
Wired LAN	Integrated Gigabit LAN	Integrated Gigabit LAN	Integrated Gigabit LAN
Wireless LAN	Intel WiFi Link 1000 802.11n	Intel WiFi Link 5300 802.11n	Atheros AR928X 802.11n
Telephony	None	Integrated 56k Fax Modem	Integrated 56k Fax Modem
Bluetooth	Internal Bluetooth Module	Internal Bluetooth Module	Internal Bluetooth Module
Optical	H-L Data GT30N DVD-RAM	Panasonic UJ-130 BD-ROM DVD±RW	Optiarc BC-5500S BD-ROM DVD±RW
Media Reader	Multi-format flash card interface	Multi-format flash card interface	Multi-format flash card interface
Webcam	2.0 Megapixel	2.0 Megapixel	2.0 Megapixel
Expansion	ExpressCard/54	ExpressCard/54	ExpressCard/54
USB 2.0	Four Ports (2 left, 2 right)	4 Ports (right-side)	4 Ports (2 left, 2 right)
IEEE-1394	1x FireWire 400 (left-side)	1x FireWire 400 (left-side)	1x FireWire 400 (right-side)
eSATA	1x eSATA 3.0Gb/s (left-side)	1x eSATA 3.0Gb/s (left-side)	1x eSATA 3.0Gb/s (right-side)
Audio I/O	Headphone/Digital Optical Out Combo, Microphone, Line-Input (right-side)	Line-In, Digital Out, Microphone, Headphone (front edge)	Headphone, Digital Out, Line-In, Microphone (right-side)
Video Out	1x VGA, 1x HDMI (left-side)	1x DVI (rear), 1x HDMI (left-side)	1x VGA, 1x HDMI (rear)
Battery	Six-cell 11.1V 4800mAh	12-cell 14.4V 6600mAh	Nine-cell 10.8V 7800mAh
Weight	Notebook 7.4 lbs, Power Adapter 1.3 lbs., Total 8.7 lbs.	Notebook 11.8 lbs., Power Adapter 2.6 lbs., Total 14.4 lbs.	Notebook 7.8 lbs., Power Adapter 1.3 lbs., Total 9.1 lbs.
OS	Microsoft Windows 7 Home Premium	Microsoft Windows Vista Ultimate	Windows Vista Home Premium
Warranty	Two-year parts and labor (w/overnight shipping), One-Year accidental damage	One-year return service	Three-year electronics parts/labor One-year LCD/Battery
Support	Two-year toll-free telephone	One-year online and telephone	Three-year online tech support
Total Price	$1,500	$4,586	$1,600

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