| AMD A8-3850 Lynx APU Processor |  |
| Reviews - Featured Reviews: Processors | |
| Written by Hank Tolman | |
| Thursday, 30 June 2011 | |
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Page 3 of 15
Closer Look: AMD A8-3850 APUThe AMD A-Series A8-3850 is the top end of the APUs being released in mid-2011. The A-Series APUs are similar in build to the Athlon-II X4 series CPUs. They have four CPU cores and 4MB of L2 cache, but no L3 cache. The A-Series APUs are built on 228mm2 die. The APU comes in a little bit of a different package than the AM3 CPUs. The new socket is called FM1 and houses the 905-pin APUs. Another difference is the technology used to build the A-Series APUs. While the AM3 CPUs were built on a 45nm process, the A-Series APUs are built on a 32nm process.
The FM1 is a completely new socket for AMD. With the 990FX chipset, the socket AM3+ is backwards compatible with AM3 processors. The FM1 is a completely new socket. You won't be able to put your old processors in there. You will, however, be able to use your old heatsinks. As it has been for quite a while now, your AM2+/3/3+ heatsinks will fit the new FM1 sockets as well. The Lynx platform also increases the memory speeds supported up to 1866MHz. That's a little higher than the 1333MHz on the Sandy Bridge platform.
For the new 32nm line-up of AMD CPUs, the A-Series represents the lower end. AMD is coming out with the FX series which will represent the higher end. The A-Series, at this point, are limited to quad-core CPUs without an L3 cache. The L2 cache, however, is slightly enhanced with 1MB per core for a total of 4MB. When the FX series of processors is released, we will see 6-Core and 8-Core processors, undoubtedly sporting an L3 cache. Where other specifications are concerned, the A8-3850 has a TDP of 100W, slightly higher than the A8-3800's 65W when it is released. The only other real difference between the two is clock speed and turbo-boost.
The A8-3850 and the A6-3650 are both being released now, with the A8-3800 and A6-3600 being saved for a yet undetermined date. The lower numbered APUs both have significantly lower CPU base clocks, the A8-3800 at 2.4GHz and the A6-3600 at 2.1GHz. Those APUs also have the ability to Turbo up 300MHz faster. The A8-3850 is clocked at 2.9GHz and the A6-3650 at 2.6GHz, but neither of those have the ability to turbo boost. The TDP is higher on the higher numbered processors, up to 100W from 65W.
Besides CPU Clock speeds, the A8 series APUs also have a little better GPU. The A6 Vision package includes a Radeon HD 6530D GPU and the A8 Vision package has a Radeon HD 6550D. The 6550D has more Radeon cores, at 400, than the 6530 at 320. Additionally texture units and SIMDs are higher on 6550D, 20 and 5 respectively. The clock speed for the 6550D is 600MHz and the GPU Peak compute is 480 GFLOPS. Overall the GPU on the A8-3850 looks pretty significant, as far as what we are used to seeing in onboard graphics.
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Comments
Great review, would of liked it more if you gave more details about your overclocking e.g. multipliers of cpu gpu RAM and how the reference clock affects them etc
-Hank
My 920 is running at 3.8Ghz.
ZLib 237.7
Queen 42591
PhotoWorxx 52680
AES 44529
Julia 12480
Mandel 6069
Sin Julia 5171
Cinebench 5.68 All Cores (Reported 3.62Ghz for some strange reason)
So if I understand correctly, even if the onboard APU isn't powerful enough, you can now add a cheaper card on top of that and the GPU power increases overall? So you could buy an all in one CPU/APU and then add a cheap vid card and perhaps nearly high end graphics capability (Or more modestly, that's the trend)? That's pretty impressive. I will not be sorry to see the days of the must have 500.00USD video card gone.
It's a great idea (in theory) to have integrated graphics on a cpu these days, since modern tower heatsinks provide so much cooling oomph.
Though I know you were talking about cheap cards and cheap graphics, so that's all irrelevant. APU's may see some interesting Overclocking profiles, especially if the Bios options become more developed later on. I think people will be most concerned with overclocking with the purpose of improving memory bandwidth to the GPU, as that seems to be the biggest bottleneck on these chips currently.
It's not for no reason that many tower heatsinks advertise the ability to handle 200-250W.
Pared with a 6570 the 3DMark 11 score nearly doubles which puts it pretty close to a 6770. I am hoping to try it with a 66770 before the show Sunday.
With at least an i7-920 almost everyone can breath silently today and more, it's a solid anchor/pov for everything new on performance side.
And i'm always happy when the monopol spectre fades away.
my last 4 CPU's were 4400x2, FX60, i7-950 and now i7-990X (i'm a little gearslut, i know). My point: don't be an absolute fan of one brand no matter what. Depend of your needs, don't ignore the alternative.
I'm building my own and others PC for maybe 15 years and with a few gaps,i offer both intel and amd solutions, except high end workstations/ultragaming rigs.
if u choose wise, one platform could be trusful for more than 4 years.
For example u need to know two thing to stay in the line: CPU and GPU.
- For CPU, first pick one middle, in the budget, and in one year or more seek for the top CPU of the platform which ussualy cost u less than new mainstream CPU and will perform better than next-gen middle for another 1-2 years.
- for GPU, pick the mainboard with BOTH SLI and XFire. buy 1st one card u can afford, than go dual. Even if u'll choose the second step to go with one more powerfull card from the copmetition, u'll eventually can go dual with 2 top GPU across 2 generation. sometimes 3. And it works.
- Yeah, the RAM, don't go under 6Gs today and PSU, at least 750W GOOOOD brand.
so i really hope AMD will be ok in high end CPU's new generaton.
more the choices, better for us.
BTW, good review.
most sites show that a8-3850 is a bit slower than the 5570 so have something in mind
what a joke release??
an envelod of 100watt??? clearly it eliminates it as an htpc solution.
and since the scores are somewhere the athlon II x4 640
you can use the previous plattform with athlon II x4 620e with an envelop of 45 wat leaving you 55 watt for a gpu. thus not needing to buy a mobo if you are already a holder of an mad system.
a cpu of 45 and a gpu of 55 will means you can go to entirely passive solutions to both. or a an almost silent for the cpu.
so why to have one item that you have to upgraqde both when you can have 2 diferent to upgrade????
so far the assymetric crossfire apu +gpu works unter dx11 and dx10
and dx9 you get worse score than the apu alone!!!!! (maybe amd should look at this and fix it with some new drivers????)
it is a product that is not having any space to breath
since you can go to better alternates even at the amd side
mobo+apu=200 dollars more or less
now there is i3-2100 junior out there 2core/4 thread with a tdp35 watt so how a8-3850 can beat that contestor??? paired with a discrete card??
tdp suks, perfomanse something we have seen nothing spectacular
a product we could do without
as an amd user the last system was from amd i can say i am really disapointed for the outcome of amd is that what amd offer to hit intel?!?!!?!?
what is the market this product aims for??
the a8-3800 with 65 tdp could be discuseed for the lower tdp but i see it will be blown away with intel copmpinations both in tdp and perfomanse :-(
A8 3850's CPU part is faster than Athlon IIx4, clock to clock, by at least 6%.
Athlon IIx4 640+ Radeon HD5570 = 95W+39W = 134W,Llano A8 3850 = 100W with much lower idle power consumption(~44W). No one buys those 'e' or 'T' suffixed under performing parts simply for one obvious reason - PRICE! That junior i3 you mentioned, has a tag of $134 and has the abysmal GPU (HD2000) performance as usual. There is a huge market for entry level budget constrained gaming boxes, Llano will sale like hot-cakes there with a little price-drop. You want a silent, ULV HTPC solution? Go buy a Bobcat system!
well lets see i3 2100 junior 134$ mobo as low as 40$= 174$
a8 115$ mobo 100$+ = 215$ so that leaves you room to buy a gpu 40$
the mobo manufacters got it wrong you do not make 100-150$ mobo for the low end you make 50$ mobo for that cpu and maybe a model at 100$ for the more enthusiast who do not mind to pay some extra so liano need cheaper mobo and a price drop if it wants a share of the market
but the problem remains a8 needs it is own mobo due to his socket
why entrap yourself to a socket of midle to low powered machines when you can go to an am3 solution or am3+ solution now and be ready for bulldozer??? a matx mobo for amd can be found for 40-50$ thus freeing you with some money for the cpu so you can have the mobo and the energy efficient athlon at the same cost you will get today the a8 and his mobo. if you already had a system you can moove you gpu or pay 50-60$ more to get a 5570 and you have the same system as perfomanse with better options. to upgrade.
bobcat is nice but zotac has a mobo out with su2300 thus making it a better option than bobcat.
ion2 is more or less equal to bocat igpu
but su2300 is superion to bobcat in power
power consumption small diferense not that huge and even at idle su2300 wins. so bobcat!?!?!? again it will play role if amd or mobo manufacters drop the price so the bobcat will be more attractive due price only.
thats the only thing left to amd nowdays the complete cheaper but intel is hammering amd hard even at that sector nowdays.
if amd had released liano before intel cpus now we would talk what a failure the intel launch is
but now intel beat amd and he compare her to intel and she looses badly :-(
But as you point out in terms of socket compatibility, this chip is not marketed to people who have an existing AM3 platform, its for new consumers. The socket is a necessary evil at this point, since the AM3 socket is not designed for the extra data needed to deal with the GPU. That said, I would definitely not pay $150 for a Llano motherboard. I'd pay $100 at maximum.
Performance: 8.50
Construction: 9.00
Functionality: 9.50
Overclock: 8.50
Value: 8.50
Final Score: 8.25 ?????out of 10
ĦĦĦĦĦ8.8!!!!!
AMD Phenom-II X4-975BE Final Thoughts?????
ĦĦĦĦĦAMD A8-3850 Lynx Final Thoughts!!!!!
I think the LLANO APUS 65W TDP ,with Turbo Core 2,for HTPC,buros,workstati ons,etc,are the most interesting of use.