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Friday, August 26, 2011

HP's EliteBook 8740w Dream Color IPS Screen Glorious 1920x1200

Just over ten months ago, we had a chance to take a look at a very big, reasonably impressive mobile workstation: HP's EliteBook 8740w. It sported HP's DreamColor IPS screen at a glorious 1920x1200 resolution and had fairly beefy hardware under the hood, including the at-the-time fastest mobile workstation

GPU, the NVIDIA Quadro 5000M. But since HP unveiled the dramatic redesign of their enterprise notebooks earlier this year, we've been anxiously anticipating the 8740w's refresh. Today we have it, specced to kill with a shiny new DreamColor IPS screen, Sandy Bridge quad-core processor, and an even faster NVIDIA Quadro GPU.


I'll go ahead and get this out of the way right now before we even get into the nitty gritty: the chassis on the 8760w is a massive improvement on the 8740w's schizophrenic aesthetic, but there's a cost that some of you aren't going to be willing to pay, and I'm not talking a monetary one. You may have noticed that all of HP's new business-class notebooks feature 16:9-aspect panels instead of the old standby 16:10, and the 8760w hasn't been spared. I personally don't have a huge problem with it, but it's hard to deny something's been lost here. Where consumer notebooks have potentially benefitted from the move to 16:9 (1280x800 to 1366x768 is basically a wash, while 17" notebooks got a boost from 1440x900 to 1600x900), the change from a 1920x1200 panel to a 1920x1080 panel is a loss; end of conversation.
With all that said, hopefully the move to Sandy Bridge and access to the new GF110-based Quadro will make the transition a little less painful.

HP EliteBook 8760w Specifications
Processor Intel Core i7-2820QM
(4x2.3GHz, 32nm, 8MB L3, Turbo to 3.4GHz, 45W)
Chipset Intel QM67
Memory 4x4GB Samsung DDR3-1333 (Max 4x8GB)
Graphics NVIDIA Quadro 5010M 4GB GDDR5
(384 CUDA cores, 450MHz/900MHz/2.6GHz core/shader/memory clocks, 256-bit memory bus)
Display 17.3" LED Matte IPS 16:9 1920x1080
(LGD02FC Panel)
Hard Drive(s) Micron C300 256GB SATA 3Gbps SSD
Optical Drive HP BD-ROM/DVD+-RW Combo Drive
Networking Intel 82579LM Gigabit Ethernet
Intel Centrino Ultimate-N 6300 802.11a/b/g/n
Bluetooth v3.0
Audio IDT 92HD81B1X HD Audio
Stereo speakers
Mic and headphone jacks
Battery 8-Cell, 14.3V, 83Wh battery
Front Side SD/MMC Reader
Left Side Kensington lock
Exhaust vent
Ethernet
DisplayPort
eSATA/USB Combo port
2x USB 3.0
4-pin FireWire
ExpressCard/54
Right Side Headphone and mic jacks
USB 2.0 (charging)
USB 2.0
Smart Card Reader
Optical drive
VGA
Back Side Modem
Exhaust vent
AC adaptor
Operating System Windows 7 Professional 64-bit SP1
Dimensions 16.4" x 10.7" x 1.47" (WxDxH)
Weight 7.8 lbs
Extras Webcam
DreamColor IPS display
Flash reader (MMC, SD/Mini SD, MS/Duo/Pro/Pro Duo)
USB charging
Blu-ray
HP Performance Advisor
Backlit keyboard with 10-key
Warranty 3-year limited warranty
Pricing Starting at $1,899
Priced as configured: $6,497

Thus far we've only really seen the i7-2820QM in the Sandy Bridge review notebook we received way back when Sandy Bridge was first launched, so the EliteBook 8760w is at least going to be our first experience with it "in the field" so to speak. It's a pretty beefy CPU, too, with a 2.3GHz nominal clock speed that turbos up to 3.1GHz on all four cores or a very healthy 3.4GHz on just one. That actually puts it within spitting distance of desktop Sandy Bridge quads, and it's a testament to the power efficiency of Intel's architecture. HP has also seen fit to grant it access to four memory slots and our review unit is specced with 16GB of non-ECC DDR3-1333.

The NVIDIA Quadro 5010M is a much more incremental update to its predecessor than the GeForce GTX 485M was to the 480M, though I suspect NVIDIA opted to continue using GF1x0 for their top shelf mobile workstation GPU due to its superior HPC capabilities. With the move to GF110, the 5010M now benefits from 384 CUDA cores instead of the 320 found on the previous generation Quadro 5000M, as well as bumps in clock speed to 450MHz on the core, 900MHz on the shaders, and 2.6GHz on the GDDR5. Gamers will undoubtedly be disappointed at the low clocks across the board, but the 5010M isn't really for them. While GF1x4 is more friendly for high-end mobile gaming hardware, GF1x0 likely remains the better choice for workstation tasks.

Our review unit is also bolstered by Intel's QM67 chipset, allowing for RAID 0/1/5 support as the EliteBook 8760w can support two 2.5" drives natively and a third if the user chooses to swap out the optical drive for another drive bay. As befitting a workstation notebook of this caliber, there's also virtually every type of connectivity the end user could ask for: eSATA, USB 2.0, USB 3.0, FireWire, Bluetooth, and even ExpressCard/54 are all present.

The Sandy Bridge Pentium Review: G850, G840, G620 & G620T Tested

In 2006 Intel introduced its tick-tock cadence for microprocessor releases. Every year would see the release of a new family of microprocessors as either a tick or a tock. Ticks would keep architectures relatively unchanged and focus on transitions to smaller manufacturing technologies, while tocks would keep fab process the same and revamp architecture. Sandy Bridge was the most recent tock, and arguably the biggest one since Intel started down this road.


At a high level the Sandy Bridge CPU architecture looked unchanged from prior iterations. Intel still put forth a 4-issue machine with a similar number of execution resources to prior designs. Looking a bit closer revealed that Intel completely redesigned the out-of-order execution engine in Sandy Bridge, while heavily modifying its front end. Sandy Bridge also introduced Intel's high performance ring bus, allowing access to L3 by all of the cores as well as Intel's new on-die GPU.

The Sandy Bridge GPU was particularly surprising. While it pales in comparison to the performance of the GPU in AMD's Llano, it does represent the first substantial effort by Intel in the GPU space. Alongside the integrated GPU was Intel's first hardware video transcoding engine: Quick Sync. In our initial review we found that Quick Sync was the best way to quickly transcode videos, beating out both AMD and NVIDIA GPU based implementations in our tests. Quick Sync adoption has been limited at best, which is unfortunate given how well the feature performed in our tests.

Sandy Bridge wasn't all rosy however. It was the first architecture that Intel shipped with overclocking disabled on certain parts. Any CPU without Turbo Boost enabled is effectively unoverclockable. Intel killed the low end overclocking market with Sandy Bridge.


The overclocking limits were a shame as Sandy Bridge spanned a wide range of price points. The low end Core i3-2100 was listed at $117 while the highest end Core i7-2600K came in at $317. While you can't claim that Sandy Bridge was overpriced at the high end, there's always room for improvement.

Despite abandoning Pentium as a high end brand with the 2006 release of Intel's Core 2 Duo, Intel has kept the label around for use on its value mainstream parts. Last year we saw only two Pentium branded Clarkdale parts: the G6950 and G6960. This year, powered by Sandy Bridge, the Pentium brand is a bit more active.

Processor Core Clock Cores / Threads L3 Cache Max Turbo Max Overclock Multiplier TDP Price
Intel Core i7 2600K 3.4GHz 4 / 8 8MB 3.8GHz 57x 95W $317
Intel Core i7 2600 3.4GHz 4 / 8 8MB 3.8GHz 42x 95W $294
Intel Core i5 2500K 3.3GHz 4 / 4 6MB 3.7GHz 57x 95W $216
Intel Core i5 2500 3.3GHz 4 / 4 6MB 3.7GHz 41x 95W $205
Intel Core i5 2400 3.1GHz 4 / 4 6MB 3.4GHz 38x 95W $184
Intel Core i5 2300 2.8GHz 4 / 4 6MB 3.1GHz 34x 95W $177
Intel Core i3 2120 3.3GHz 2 / 4 3MB N/A N/A 65W $138
Intel Core i3 2100 2.93GHz 2 / 4 3MB N/A N/A 65W $117
Intel Pentium G850 2.9GHz 2 / 2 3MB N/A N/A 65W $86
Intel Pentium G840 2.8GHz 2 / 2 3MB N/A N/A 65W $75
Intel Pentium G620 2.6GHz 2 / 2 3MB N/A N/A 65W $64
Intel Pentium G620T 2.2GHz 2 / 2 3MB N/A N/A 35W $70

The new Sandy Bridge based Pentiums fall into two lines at present: the G800 and G600. All SNB Pentiums have two cores (HT disabled) with 256KB L2 per core and a 3MB L3 cache. CPU core turbo is disabled across the entire Pentium line. From a performance standpoint, other than missing hyper threading and lower clocks - the Sandy Bridge Pentiums are very similar to Intel's Core i3.

Intel continues to separate the low end from the high end by limiting supported instructions. None of the Pentiums support AES-NI or VT-d. Other than higher clock speeds the 800 series only adds official DDR3-1333 support. The 600 series only officially supports up to DDR3-1066.

All standard Pentiums carry a 65W TDP. The Pentium G620T runs at a meager 2.2GHz and manages a 35W TDP. Regardless of thermal rating, the boxed SNB Pentiums come with an ultra low profile cooler:


These Pentium CPUs work in the same 6-series LGA-1155 motherboards as their Core i3/5/7 counterparts. The same rules apply here as well. If you want video out from the on-die GPU you need either an H-series or a Z-series chipset.

The Pentium GPU

When Intel moved its integrated graphics on-package with Clarkdale it dropped the GMA moniker and started calling it HD Graphics. When it introduced the Sandy Bridge Core i3/5/7, Intel added the 2000 and 3000 suffixes to the HD Graphics brand. With the Sandy Bridge Pentium, Intel has gone back to calling its on-die GPU "HD Graphics".
Despite the name, the Pentium's HD Graphics has nothing in common with Clarkdale's GPU. The GPU is still on-die and it features the same architecture as Intel's HD Graphics 2000 (6 EUs). Performance should be pretty similar as it even shares the same clock speeds as the HD 2000 (850MHz base, 1.1GHz turbo for most models). I ran a quick test to confirm that what Intel is selling as HD Graphics is really no different than the HD Graphics 2000 in 3D performance:

Intel HD vs 2000 vs 3000 - Crysis Warhead

All is well in the world.

Where the vanilla HD Graphics loses is in video features: Quick Sync, InTru 3D (Blu-ray 3D), Intel Insider (DRM support for web streaming of high bitrate HD video) and Clear Video HD (GPU accelerated post processing) are all gone. Thankfully you do still get hardware H.264 video acceleration and fully audio bitstreaming support (including TrueHD/DTS-HD MA).

Missing Quick Sync is a major blow, although as I mentioned earlier I'm very disappointed in the poor support for the feature outside of the initial launch applications. The rest of the features vary in importance. To someone building a basic HTPC, a Sandy Bridge Pentium will do just fine. Personally I never play anything in 3D, never use the Clear Video HD features and never use Intel Insider so I wouldn't notice the difference between a Sandy Bridge Pentium and a Core i5 for video playback.

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