ASUS G51: Affordable Midrange Gaming

The ASUS G51J is pretty much on the opposite end of the spectrum compared to the UL80Vt. It packs Intel's latest Core i7-720QM mobile CPU into a 15.6" chassis, and pairs that up with a GeForce GTX 260M. You also get 4GB DDR3 and dual 320GB 7200 RPM hard drives. Where the UL80Vt focused on balancing performance and battery life while keeping costs reasonable, the G51J kicks battery life to the curb and emphasizes performance. The cost is also nearly double that of the UL80Vt, but depending on the task the G51J is 2 to ~4 times as fast. $1450 might sound like a lot for a gaming laptop, but prior to the release of the Gateway FX notebooks most laptops that could actually run games cost closer to $3000. Let's look at the specifications.

ASUS G51J Specifications
Processor Intel Core i7-720QM
(4x1.6GHz+ HTT, 45nm, 4x256KB L2, 6MB L3, 2.5GT/s QPI, 45W)
Chipset Intel PM55
Memory 2x2GB DDR3-1066 (Max 2x4GB)
Graphics NVIDIA GeForce GTX 260M
(112SPs, 500/1250/1598 Core/Shader/RAM clocks)
Display 15.6" Glossy Full HD 1080p (1920x1080)
Hard Drive(s) 2 x 320GB 7200RPM 16MB HDD (Non-RAID)
Optical Drive 8x DVDR SuperMulti
Networking Gigabit Ethernet
Intel Wifi Link 1000 BGN
Bluetooth v2.1 + EDR
Audio 6-Channel Realtek ALC663 HD Audio
(2.0 speakers with three audio jacks + digital out)
Battery 6-Cell 53.28Whr, 11.1V DC, 4800mAh
Front Side Flash Reader (MMC, MS, MS Pro, SD, xD)
WiFi On/Off Switch
Left Side 2 x USB 2.0
HDMI
1 x eSATA
1 x Mini FireWire
Optional TV Tuner Input
Heat Exhaust
VGA
Right Side 3 x Audio/Microphone jacks
2 x USB 2.0
Optical Drive (DVDR)
Back Side Kensington Lock
Power Adapter
Gigabit Ethernet
Operating System Windows 7 Home Premium 64-bit
Dimensions 14.6" x 10.3" x 1.3-1.6" (WxDxH)
Weight 7.26 lbs (with 6-cell battery)
Extras Webcam
92-Key Keyboard with 10-Key
5% Overclock via Power4Gear
Warranty 2-year global warranty
1-year battery pack warranty
1-year accidental damage
30-day zero bright dot LCD
Pricing ASUS G51J-A1 starting at $1450

We have seen other laptops that provide either a Core i7-720QM processor or a GeForce GTX 260M for less money, but if you want both $1450 is about as cheap as you're likely to find. Besides providing a balanced combination of CPU and GPU performance, ASUS adds a few extras that many others don't provide. One of those extras is a 1080p LCD; there are far too many 15.6" laptops shipping with 1366x768 LCDs - or at best 1600x900. We were working on ASUS' own G51Vx when they dropped the G51J on us, only the G51Vx model we had used a 1680x1050 LCD, Core 2 Quad Q9000 CPU, and it cost about $200 more. In our limited testing, it looks as though the G51J is faster in virtually every area, so there's not much reason to consider the older model… well, almost.

While the Core 2 Quad Q9000 G51Vx has been displaced, you can get essentially the same thing as the G51J except with a Core 2 Duo P8700. That's a 2.53 GHz dual-core processor, and while core i7-720QM can Turbo up to 2.8GHz, for tasks that don't utilize more than two cores (i.e. most games) performance will be very similar. The ASUS G51Vx-X3A also omits the second HDD (add your own if you'd like) and costs $200 less while keeping the 1080p LCD. Both are very good gaming laptops; the only question is whether or not you want the number crunching power of the Core i7.

If you do video rendering or 3D work, the i7-720QM is going to be about twice as fast as a P8700 and about 20% faster than a Q9000. The G51Vx will also offer slightly better battery life if that's a concern, though we're still looking at less than two hours. The closest competition is the Gateway P-7908u: it's $1150 instead of $1250 for the G51Vx, but it has a 1440x900 LCD and bulkier 17" chassis.

Gallery: ASUS G51J

The UL80Vt is a thin and light sedan design, and the G51J is a large pickup truck by comparison. It tips the scales at over 7 pounds and is noticeably thicker (though not quite as large as 17" notebooks). The benefit of the larger chassis is that you can actually run high-performance parts, and you can also squeeze in two hard drives and a full size keyboard with 10-key. The G51J is much more of a desktop replacement as opposed to a mobility focused laptop, and it fills that niche very well. If you want to upgrade to something faster like an i7 CPU with GTX 280M, expect to pay at least $300 more, and the performance increase is only around 20%. The Clevo W870CU we tested previously sells for over $3000 with the i7-920XM and it's still only 30% faster at best.

ASUS includes the same Power4Gear utility on the G51J, but it doesn't help as much with battery life as there's only so much you can do with an i7 CPU and GTX 260M GPU. CPU overclocking is also supported (on the High Performance profile), but the performance boost is quite small: the maximum overclock is a 140MHz bus instead of the default 133MHz, representing a scant 5% boost in CPU performance. What's more, the overclock actually reduced performance in some of our gaming tests and it never improved performance by more than a couple percent. CPU intensive tasks like CINEBENCH and x264 encoding show the expected 5% performance increase, but most games showed a decrease. Our guess is that the maximum single-core Turbo mode on the CPU doesn't activate as much (or perhaps at all) with the overclock because of power/heat constraints, whereas heavily threaded tasks still get a 5% boost.

Gallery: ASUS G51Vx

We're officially reviewing the G51J, and we like the overall package. It's well-balanced for anyone that wants a fast CPU and GPU. However, since we used the G51Vx for a week or two before sending it back and getting the G51J, we feel we can speak to both laptops. On both designs the build quality is good and we really like the matte surface of the palm rest. The cover art is a little too much for our tastes, but it does fit with the gamer mentality and some will like the design. LCD contrast ratio is poor, like 95% of laptops, and it's a glossy panel (99% of laptops). We ordered an anti-glare cover to see if that will solve our complaints with glossy LCDs, so stay tuned.

Like the UL80Vt, the overall package and pricing is what really gets us. Not only do you get a great gaming laptop for a reasonable price, but ASUS throws in a nice laptop backpack and a Razer Copperhead mouse - about $100 in added value for the package. You don't get those extras with the G51Vx-X3A, making the real price difference more like $100; both laptops pack a lot of performance into a mobile PC. For the price we would have liked to see a better LCD (particularly the contrast ratio), but that and the relatively short battery life - something you get with any gaming laptop - are really the only complaints. For providing one of the best values in gaming laptops, we are pleased to award the ASUS G51J and G51Vx our Bronze Editors' Choice award.

Now on to the benchmarks….

ASUS UL80Vt: Nearly Perfect Testing Overview
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  • JarredWalton - Tuesday, December 15, 2009 - link

    I'm curious to see how it works as well. I'm thinking CULV + 9400M would have accomplished much the same thing, but perhaps not. Stay tuned....
  • yacoub - Tuesday, December 15, 2009 - link

    Here's hoping it comes with a quality display! ;)
  • JarredWalton - Wednesday, December 16, 2009 - link

    One word: NOPE!

    Okay, more than one word: When you boot up a laptop for the first time and the black background of the Windows loading screen looks more like dark gray, you know the contrast ratio is crap. Bleh.
  • Ditiris - Tuesday, December 15, 2009 - link

    I finally switched my HTPC over to Windows 7 and noticed that it had a mind of its own with regard to power settings.

    power settings, change plan settings, change advanced power settings, expand Sleep and Allow wake timers, Disable any that are there

    That fixed all my issues, even though I didn't have any sleep/wake timers, but disabling the ability seems to be important.

    I haven't had any issues with my Vista machines (FWIW I'm using High Performance and I specifically went into the Advanced screen and disabled all sleep options).
  • JarredWalton - Tuesday, December 15, 2009 - link

    The wake events are already disabled, unfortunately. Some laptops exhibit the problem less than others (driver related perhaps), but my best guess is that somewhere there's a rogue line of code that gets invoked on occasion. I've actually fooled around hacking the registry on my personal laptop in order to keep the problem from reoccurring, but that was neither fun nor recommended for the faint of heart!
  • mczak - Tuesday, December 15, 2009 - link

    Again I have to wonder what the point of the OC CULV chip is. There's a ~10W difference (at full cpu load) between OC and non-OC, which means it is almost certainly also overvolted, but more importantly, that difference is larger than the TDP difference between CULV parts and (slightly faster) LV parts.
    Looks to me like using a LV part instead of OC CULV would be both a bit faster plus actually offer slightly more battery life (unless, of course, you use stock setting of the CULV).
  • JarredWalton - Tuesday, December 15, 2009 - link

    It's pretty much giving users the ability to run with long battery life and when desired get better performance. If it were an on-the-fly setting, it would be a lot better. Anyway, even overclocked the SU7300 in the UL80Vt idles at what appears to be 2W, where something like the P8600 appears to idle at close to twice that (4-5W). It would be interesting to see some of the LV CPUs in a similar system, certainly... SL9600 anyone? Or maybe ASUS should grab an SL9380 and enable the same Turbo33 functionality. 1.8GHz stock and 2.4GHz overclocked. That would be the equivalent of P8600 (with 6MB cache) but hopefully allow lower power at idle.
  • kagey - Tuesday, December 15, 2009 - link

    BTW - Nice reviews!

    I may have missed this so slap me if I did but It would be helpful including some sort of standard about these two in the evaluation of a laptop. I feel these two points are just as important as performance and battery life.
    Both are subjective but should be able to be measured while web surfing, gaming, and full load.

    Noise factor of the fans. I hate it when you start doing something on the laptop and all of sudden the fans kick in and sound like a jet taking off. It would be nice if you could come up with some standards in the way of noise.

    Heat - the palm rest when typing, touchpad / mouse area, underneath i.e. (keeping your legs nice and warm - yeah I know not the most optimal position for a laptop), and exhaust areas.

    Thanks for listening.
  • JarredWalton - Tuesday, December 15, 2009 - link

    I didn't mention either, but I did think about them during the review process. For the record, the UL80Vt is very quiet and cool running. When the fans kick up to higher speeds, it still remains a lot quieter than most laptops... maybe around 37-40 dB max, and it doesn't happen unless you put a heavy load (100% CPU or running games) on the system.

    The G51J gets louder, but it's not as bad as the W870CU. For most tasks it will stay under ~35dB, but gaming will bump it up to around 39-41dB. Heat was not an issue on the G51J in my experience; the palm rest gets warm, perhaps up to 90F, and the bottom is the same except for the top-right corner (directly under the CPU/GPU "circle") which gets over 100F for sure.
  • Wesleyrpg - Tuesday, December 15, 2009 - link

    hey guys, love the asus g51j, had one for a few days myself!

    only problem is the mic on my one makes me sound like im in a subway (tried all the settings i could think of!).....have you guys had a chance to test your mic on livemessenger/ventrilo???

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