Who Controls the User Experience? AMD’s Carrizo Thoroughly Tested
by Ian Cutress on February 4, 2016 8:00 AM EST#2 The HP Elitebook 745 G3 (Carrizo, PRO A12-8800B)
The Carrizo Elitebook 745 G3 looks practically identical to the Kaveri based 745 G2, so there’s no need to cover the visuals again, but the internals here cause a lot of talking points.
| HP Elitebook 745 G3 (Carrizo) Specifications | |
| Size and Resolution | 14-inch, 2560x1440 IPS |
| Processor | AMD PRO A12-8800B Dual module, 4 threads 2.1 GHz Base Frequency 3.4 GHz Turbo Frequency |
| Graphics | Integrated R7 512 Shader Cores 800 MHz maximum frequency GCN 1.2 |
| TDP | 15W |
| Memory | 4 GB in Single Channel Operation 1 x 4GB at DDR3L-1600 C11 2 SO-DIMM Slots |
| Storage | 128GB SSD |
| Battery Size | 45.76 Wh 3 cell Li-Po design, rated to 8.5 hours |
| WiFi | Broadcom Broadcom BCM943228Z 802.11ac 2x2 |
| Optical Drive | No |
| Dimensions | 13.3 x 9.3 x 0.74 in (non-touch) 13.3 x 9.3 x 0.80 in (touch) |
| Weight | 3.41 lb (non-touch) 3.76 lb (touch) |
| Webcam | 1280x720 |
| Other Features | Gigabit Ethernet 4 x USB 3.0 DisplayPort VGA Smart Card Reader |
| Operating System | Windows 8.1 |
| Website Link | link |
The G3 is almost the top premium model Carrizo you can buy, coming in at nearly $1100 if you put up the cash for the top model, which includes as much memory and storage you can fit in. For our unit, it came in at a more modest $700 ($700 for the base model, this was more $1100), which is more in-line with what price point AMD originally expected the Carrizo platform to hit. This is the first notebook with AMD’s new A12 line of processors, with this one being the PRO A12-8800B. This is a 15W part running at a base frequency of 2.1 GHz with a turbo mode up to 3.4 GHz. Any mobile APU in the A12 category has a full complement of 512 streaming processors similar to the FX mobile parts or A10 desktop parts, and the A12 runs these at 800 MHz. Unfortunately this is slightly crippled by only having the equivalent of one memory module in play, a single 4GB DDR3L-1600 module. It is dual channel capable if another is installed.
One of the big plus points with this model is the display, in comparison to the dire one on the G2, but this probably explains the majority of the cost in this 745 G3. With a 2560x1440 IPS display running a high contrast ratio (1422), it did have the best display out of what we tested for this piece. This is matched by the Wi-Fi solution, which had Broadcom’s BCM943228Z module which is an 802.11ac module in the M.2 form factor. One of the general feelings I had from the engineers here is that laptop Wi-Fi will all migrate to M.2 eventually on the understanding of better power control and form factor.
G3 Specific Testing
The 2560x1440 display varied from 0.21 nits all the way up to 297, nearly reaching the 300 mark but resulting in a 1422 contrast ratio. The white point was high, marking it up at 6657K.
While the color accuracy calibration graph looks as if the red line is the one going off on its own, it is actually the red line that is most accurate – we’re expecting a straight line through (0,0), (32,32), (64,64) and so on and while the red line is below most of these points, it isn’t as low as the green or blue.
The CPU-Z outlay shows the new FP4 socket with Carrizo over Kaveri, as well as having the full 12 compute units with those 512 SPs in tow.
On the integrated graphics side, despite the R7 graphics in there, the important element is that memory bandwidth running at 12.8 GB/s due to the single channel memory in use. We can also see the GPU clock running at 200 MHz idle, lower than the Kaveri implementation, which has power benefits.
With the 745 G3 we were able to do a run down on our light battery test, as well as run through some charge numbers.
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alexruiz - Friday, February 5, 2016 - link
Ian,What specific model of the Elitebook 745 G3 did you test?
You listed the QHD screen (2560 x 1440 IPS) but you also wrote that it came in at just under $700. Is this correct? The one that you received for $700 included the QHD screen?
Thanks
Anonymous Blowhard - Friday, February 5, 2016 - link
The link on the page goes to the T3L35UT#ABA, which is a 1080p screen. I'm guessing the spreadsheet and/or pricing is incorrect somehow.Ian Cutress - Friday, February 5, 2016 - link
I remember being told it was 700, though I may have misheard and perhaps they were speaking GBP. But AB is right, the larger screen is 1080p and more expensive.The HP website is surprising though - the UX on the website is crazy to find a product that isn't the latest and greatest. It is very difficult to find anything and you seem to pay a premium for speccing out a custom Elitebook. Trying to spec out the one I was given came to $1900 from a $1620 base, which clearly isn't right because the high end 'buy now' model was about $1120 with similar specifications.
http://goo.gl/5spQls
Anonymous Blowhard - Friday, February 5, 2016 - link
GBP certainly makes a lot more sense. The base USD$750 model on HP's site has an A8-8600B, 4GB of RAM, and a 500GB HDD. If you want to find a Carrizo system with an "awful user experience" there it is.Custom-building an HP business system from their site is also expensive for no reason other than "because we said so." They really want you to buy the mass-manufactured SmartBuy models, although you may have better luck with a custom unit (read: "reasonable pricing") if you buy from a 3rd-party reseller.
I would like to see some GPU benchmarks with a second stick of RAM added to the 745 G3 though. Single-channel memory gives integrated graphics the Tonya Harding treatment.
Intel999 - Sunday, February 7, 2016 - link
Another review of Carrizo in the HP 745 G3 showed a 30% improvement in gaming when the second stick of RAM was installed. It went from woefully behind Intel to just ahead of them after sufficient RAM was provided.It is remarkable that any OEM would damage their own reputation by putting out crap that is obviously intended to funnel sales to Intel.
Imagine an OEM putting out a model, let's call it HP100, and offering it with identical specs with the only difference being a Carrizo CPU vs. an I5 from Intel. Few if any, would notice a difference in performance in the real world, not talking benchmarks.
The OEM would have a $100 savings on the Carrizo version if not more. If they were to sell it for $50 less than the Intel version they would sell more and that extra $50 profit on the AMD machine would more than offset the "rebates" they are getting from Intel. So they could have a higher profit margin at a lower price point. Afterall, with all the Intel marketing you'd still have plenty of people opting for the Intel version with it's lower profit margin. Just not as many and overtime you could approach Intel and point out that you make more money off AMD machines and who knows, maybe for the first time in recent history the OEM would control how their company is run and Intel would say "I guess we can cut our price by $25" and then you would be making the same profit on both Intel and AMD machines since, of course, the OEM wouldn't pass that $25 to the customer.
They could still offer junk machines at lower price points. Fill em up with Celerons or whatever they wanted attached to HDDs, 4GB of RAM, and crap screens.
Surely, no OEM is still following the old Intel rebate plan that allowed Intel to determine the market share that the OEM is allowed to give AMD. Or, are they?
Lolimaster - Friday, February 5, 2016 - link
I hate HP store with all my might, back in the day I got better experience donwloading from japanese p2p's not knowing japanese and just using a simple guide.keeepcool - Friday, February 5, 2016 - link
Please, just dont let Toshiba make laptops, just DON'T.Sorry for the word, but Toshiba is a shit brand that deserves to die. All their laptops have cooling solutions that are badly designed from the start, and the they cut all the corners and go for paper thin 4mm heatpipes on top of deformed and pitted 1.5mm cooper plates that make poor contact with the dies, the fans are thin, the thermal paste is worse than toothpaste, just stop allowing them to disgrace AMD name.
HP is also guilty of this, after the disgrace that where the dv6 models almost no one in Portugal and a lot other countries ever want a laptop with AMD cpu or gpu, because DV6's are just know for being litteral toasters that crash and burned, yes part of that was due to lack of maintenance, but still, it left a very sour taste regard AMD/ATI equiped laptops.
Today only people with low monetary margins will go for an AMD laptop, because they are the cheapest ones, and even then HP and Toshibas just manage to make toasters out of 7 and 15Watts TDP, its like they actually spend time engineering them to became so hot with so little TDP's...
tipoo - Friday, February 5, 2016 - link
50.27 Wh, 3 cell Li-Po design, rated to 10.25 hours. Out of a 3.3GHz AMD APU.You know, HP, somehow, I don't believe you.
bluevaping - Friday, February 5, 2016 - link
Nice article. And I get the point of the article about OEM's and AMD. I mostly agree with Shadowmaster 625. But it would have been nice to see a dual channel memory test. The Elitebook supports it. Slap in the extra ram and test it. And try dual channel 1866 Ram too.tipoo - Friday, February 5, 2016 - link
Shame the Lenovo doesn't support dual graphics - any reason why, or will this be updated in drivers? Especially as the integrated one has the same number of SPs as the dedicated, it could add a lot to the power equation.