Who Controls the User Experience? AMD’s Carrizo Thoroughly Tested
by Ian Cutress on February 4, 2016 8:00 AM ESTBenchmark Results: Web and Synthetic
Here are our results from our web and synthetic tests. A reminder of our systems:
| System Overview | |||||
| µArch | APU | Base / Turbo MHz |
Memory | Channel | |
| HP Elitebook 745 G2 | Kaveri | A10 PRO-7350B (19W) | 2100 / 3300 | 8 GB | Dual |
| HP Elitebook 745 G3 | Carrizo | PRO A12-8800B (15W) | 2100 / 3400 | 4 GB | Single |
| Toshiba Satellite E45DW-C4210 |
Carrizo | FX-8800P (15W) | 2100 / 3400 | 8 GB | Single |
| HP Pavilion 17z-g100 |
Carrizo | A10-8700P (15W) | 1800 / 3200 | 8 GB | Single |
| Lenovo Y700 | Carrizo | FX-8800P (15W) | 2100 / 3400 | 16 GB | Single |
Google Octane 2.0
Lots of factors go into web development, including the tools used and the browser those tools play in. One of the common and widely used benchmarks to judge performance is Google Octane, now in version 2.0. To quote: 'The updated Octane 2.0 benchmark includes four new tests to measure new aspects of JavaScript performance, including garbage collection / compiler latency and asm.js-style JavaScript performance.' We run the test six times and take an average of the scores.
Octane splits hairs between the Kaveri and A10-8700P, but the Toshiba has the higher skin temperature and can turbo for longer than the Elitebook G3.
Mozilla Kraken 1.1
Kraken is a similar tool to Google, focusing on web tools and processing power. Kraken's tools include searching algorithms, audio processing, image filtering, flexible database parsing, and cryptographic routines.
Kraken mirrors Octane, except this time the A10-8700P gets a jump on the Kaveri.
WebXPRT 2013/2015
WebXPRT aims to be a souped up version of Octane and Kraken, using these tools in real time to display data in photograph enhancement, sorting, stock options, local storage manipulation, graphical enterfaces and even filtering algorithms on scientific datasets. We run the 2013 and 2015 versions of the benchmark.
In both versions of the benchmark, the Kaveri system beats all the 15W Carrizo platforms. It was inevitable that at some point during the benchmarking that those extra four watts of thermal headroom in the chip might allow the CPU to turbo for longer – as WebXPRT is by nature a bursty workload, if it can use this to its advantage then we’ll surely see a regression.
I want to pull out some power numbers a little early here to show what I mean. Here are the two Elitebooks in WebXPRT 2013, whose scores differ by 6%:
These power numbers were taken under the ‘all else equal rule’, so each screen was at the same brightness and almost zero applications requesting run time in the background. Here we see that the Carrizo system is drawing less power on average in idle and load (a common theme), but suffers from higher peak power draw and a much larger average-to-idle change in power (which can be overshadowed by onboard components coming out of sleep). It means we get the very uneasy metric of 1208.7 J of energy consumed for the Kaveri over idle and 1932.8 J of energy consumed for Carrizo, though it does depend on how much idle is truly idle across the whole SoC and platform.
This might be where the performance deficit lies though – in a Carrizo system that boasts lower power at idle and lower power draw on average, in a bursty workload environment it is actually wasting time and power to switch things on and off constantly.
Cinebench 15/11.5
Cinebench is a widely known benchmarking tool for measuring performance relative to MAXON's animation software Cinema 4D. Cinebench has been optimized over a decade and focuses on purely CPU horsepower, meaning if there is a discrepancy in pure throughput characteristics, Cinebench is likely to show that discrepancy. Arguably other software doesn't make use of all the tools available, so the real world relevance might purely be academic, but given our large database of data for Cinebench it seems difficult to ignore a small five minute test. We run the modern version 15 in this test, as well as the older 11.5 due to our back data.
Cinebench shows the spread of performance relating to the microarchitecture advantages of Carrizo compared to Kaveri, as well as the benefits that a 35W part can give over a 15W part. That being said, this spread of results, while perhaps an academic answer to ‘which is the fastest’ is not often seen in the real world.
x264 HD 3.0
The x264 HD 3.0 package we use here is also kept for historic regressional data. The latest version is 5.0.1, and encodes a 1080p video clip into a high quality x264 file. Version 3.0 only performs the same test on a 720p file, and in most circumstances hits its limit on high end processors, but still works well for mainstream and low-end. Also, this version only takes a few minutes, whereas the latest can take over 90 minutes to run.
As with Cinebench, we get an ideal academic spread of data.
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Danvelopment - Monday, February 8, 2016 - link
Strategy AMD should adopt:90% of people don't notice a performance difference above 3000 Super CPU Points, Intel CPUs are usually 4000-8000 Super CPU points, our chips may only range from 3500-4500 Super CPU Points but regular users won't actually notice it, and at the same performance marks we're a hundred dollars cheaper. Make the sensible choice.
Another way, we've done extensive testing to see what end users want and need, then we targeted those sectors, and where we matched Intel we made sure we were a hundred bucks cheaper on the same devices.
"We don't hold the performance crown but the price/performance crown"
Marcelo Viana - Monday, February 8, 2016 - link
Dammit, the solution should be simple, but must come from AMD, since can't expect it from oem's and all of them offer let's say 2011 sockets as example, why amd do not develop a socket switch, so a small board with 2011 pins on the bottom and a circuit on this boad to give a whatever socket amd choose connections on top of it, in order to accept amd chips.But AMD must understand that the memory on their chips must be ddr4(Carrizo do), because the lazy OEMs whon't change memory sockets, as example.
In this case the lazy ones have only to change the chip, and even better if any consumer have a old machine can upgrade to a chip that they choose. simple as that.
Anyone that sales more creates the standard on the market, the others is that must follow.
So who control the user experience? I think no one. everyone in the process just looking to explore the users in order to get money nothing more, but if i have to guess, problably the users. Because they are the one that really have the power to say "i won't buy it or that' or even better "until they give to me what i want" just my 2 cents.
farmergann - Tuesday, February 9, 2016 - link
Seems like you missed out on some highlights of the Y700. The memory is dual channel, the IPS screen has Freesync, and the sound is surprisingly awesome. Replaced the HDD with a Samsung 850 Pro and have thoroughly enjoyed it since.bitech - Tuesday, February 9, 2016 - link
Lol have they never seen a 17" laptop before? The HP Pavilion has a 1600x900 because it's 17". 1600x900 is the minimum resolution on all 17" laptops, not 1366x768.UtilityMax - Wednesday, February 10, 2016 - link
1600x900 is still a crappy resolution for such a large screen. I had a notebook with 15.5 inch 900p screen, and it was visibly grainy.mosu - Tuesday, February 9, 2016 - link
Just few words: Sabotage and corruption at high level OEM decision level. Simple as that.Arief Sujadmika - Wednesday, February 10, 2016 - link
AMD just need a feature to turn off the chips if its detect single channel memory for Carrizo then the OEM will make dual channel memory for it...thatthing - Wednesday, February 10, 2016 - link
the y700 r9 385x is a bonaire gpu, amd has no 512sp chips mobile r9 series, http://www.amd.com/en-us/products/graphics/noteboo...silverblue - Wednesday, February 10, 2016 - link
Articles like these make me want to see how good the unrestricted Athlon X4 845 will be, however as it's probably defective Carrizo silicon, I wouldn't expect it to be massively frugal. I do wonder if there will be any Bristol Ridge Athlons; the top models are rated with a cTDP of 25-45W which is a decent improvement and would reduce/eliminate throttling. Overclocking may not help in terms of power but performance would be more consistent. You also get DDR4 which isn't as big a help for the Athlons but it would be interesting to see the difference.A review of the Dell Inspiron I3656-7800BLK would be a good marker, if only to show the maximum performance of the mobile chips.
Masospaghetti - Wednesday, February 10, 2016 - link
Seems like the best configuration of a Carrizo machine would be a 35w TDP A12 with dual channel memory and integrated graphics (or discrete graphics with crossfire enabled).It's a shame that all of the machines available are severely compromised with either single channel memory, 15w TDP, lack of crossfire, or a combination of these. Seriously. The machines tested have terrible designs. Looks like AMD made a huge mistake providing a common configuration with Carrizo-L with the single channel memory.