Looking to downgrade from i920 (lower power usage)

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
25,758
14,785
136
Your video card is killing you in power. After you pick a new low power one, if that is not enough, then go the L5639 as suggested, very low power, and you don't have to change your motherboard. Then overclock if more horsepower is needed.
 

SPBHM

Diamond Member
Sep 12, 2012
5,058
410
126
Your solution is a 10w reduction.

i5-4670k - 46w power consumption at the wall for 1080p full screen hardware accelerated flash on youtube.

I think you're greatly over-estimating the cost of a cheap B87 board and discounted Haswell i5 after he sells his current cpu and mobo.

10w? GTX 275 to 6450 + undervolt is 10w?

http://www.xbitlabs.com/images/video/bfg-gf-gtx275oc/gtx275_power.png

http://tpucdn.com/reviews/Sapphire/HD_6450_Passive/images/power_idle.gif

cheap b85 + haswell i5 is at least 250 I think,

he can also sell the GTX 275 for probably $50? which is more than the new 6450 will cost.
 

BallaTheFeared

Diamond Member
Nov 15, 2010
8,115
0
71
Since we have no idea what the OPs system is drawing we've been using the other guys system with the 460, which is a 10w difference.

Yes he could sell his 275 for $60, pocket $30.

Or he could sell his 275 for $60, his i7-920 for $120, and his board for $75 (depending on which he has) and brake even.
 

Ketchup

Elite Member
Sep 1, 2002
14,546
238
106
Wow you guys are nuts, lol.

So far Jimzz has the best suggestion for the original request, unless the OP comes back and says something different.
 

SPBHM

Diamond Member
Sep 12, 2012
5,058
410
126
Since we have no idea what the OPs system is drawing we've been using the other guys system with the 460, which is a 10w difference.

Yes he could sell his 275 for $60, pocket $30.

Or he could sell his 275 for $60, his i7-920 for $120, and his board for $75 (depending on which he has) and brake even.

one of these options is easier, faster...

both options would achieve a considerable reduction, one more than the other, but for a higher cost... so, I think it's OK and the OP was given good advices here.
 

el etro

Golden Member
Jul 21, 2013
1,581
14
81
You want to save power and edit videos, go for i7 3770k and Radeon HD 7770.
 

Durp

Member
Jan 29, 2013
132
0
0
Stock i5-4670k + HD4600 iGPU


42w idle

86.6w during prime95 26.6

Yeah, that's why I recommended going for a haswell quad and using that iGPU. It's not a small difference at all.

IPC hasn't gone through the roof since nehalem but efficiency sure has and this OP's needs makes Haswell the perfect choice.
 

bigboxes

Lifer
Apr 6, 2002
39,153
12,028
146
Are you really going to save that much $$ by buying new equipment? Even if it's just an Xenon cpu for ~$100, are you really saving $100 a year in electricity? Really? I don't get all these comments to replace a working pc that is obviously more than the OP needs with equipment that costs more money. My power bill averages around $100 a month. Less in the winter and more in the summer. My biggest cost is running the a/c in the summer and the friggin' water heater and maybe the dryer on occasion. I leave my hot, power hungry i920 on all the time. When I do eventually upgrade, I'll just hand it down to the missus. Back to my question. Just how long do you guys think it will take to recoup the investment in new equipment with the energy savings? I think that if you don't need a new machine then it's just flushing money down the drain.
 

Ketchup

Elite Member
Sep 1, 2002
14,546
238
106
Are you really going to save that much $$ by buying new equipment? Even if it's just an Xenon cpu for ~$100, are you really saving $100 a year in electricity? Really? I don't get all these comments to replace a working pc that is obviously more than the OP needs with equipment that costs more money. My power bill averages around $100 a month. Less in the winter and more in the summer. My biggest cost is running the a/c in the summer and the friggin' water heater and maybe the dryer on occasion. I leave my hot, power hungry i920 on all the time. When I do eventually upgrade, I'll just hand it down to the missus. Back to my question. Just how long do you guys think it will take to recoup the investment in new equipment with the energy savings? I think that if you don't need a new machine then it's just flushing money down the drain.

...plus reduce the massive heat increase in the room....

A lot of posters in this thread seemed to gloss over this part. When I had my desktop in a smaller room, the heat was definitely noticeable, and the AC didn't care because the rest of the house was fine. You're right, the electric bill probably won't change too much. But not using your computer in a sauna sure is nice!
 
Last edited:

2is

Diamond Member
Apr 8, 2012
4,281
131
106
Why not get an i7-4770? The stock 4770 uses a LOT less power than the 920 does......

IIRC the 4770 idles at less than 1V, it will make a pretty massive difference in terms of power consumption. You may also want to switch GPUs as well, I had a 285 back in the day and it was a guzzler - i'd imagine the 275 is as well. That is, if you need a dGPU. It actually sounds like the iGPU on the 4770 would be more than enough for your needs, thus saving even more power.

This would be my suggestion as well.
 

Deders

Platinum Member
Oct 14, 2012
2,401
1
91
If he doesn't play games currently, then his GPU is mostly idle anyway. How much power does a 275 use at idle? Yes, he would save power but a new i5/7 would be that much better.

Modern graphics cards have much much lower idle power draw.
 

tarmc

Senior member
Mar 12, 2013
322
5
81
Your video card is killing you in power. After you pick a new low power one, if that is not enough, then go the L5639 as suggested, very low power, and you don't have to change your motherboard. Then overclock if more horsepower is needed.

seems like a good way to reduce power usage, and wont cost a small fortune
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
Both platform(LGA1366) and GFX card is a killer. Get Haswell and a GFX card if you need.

Replacing the CPU alone wont do much change as such. The LGA1366 platform vs LGA1150 in idle alone is something like 40-50W difference.
 
Last edited:

JBT

Lifer
Nov 28, 2001
12,095
1
81
While I'd probably go with the Haswell route just to try out the new hardware. Its probably going tobe a OS re install as well. It really depends on how much time/effort he wants to put in to this. Selling all that stuff can be a pain.
 

raghu78

Diamond Member
Aug 23, 2012
4,093
1,475
136
just get a haswell core i5 with H87. use quicksync for encoding. you don't need a separate GPU.
 

john3850

Golden Member
Oct 19, 2002
1,436
21
81
Because the original poster never stated how often he will use his pc everyone is guessing except for replacing the video card.
Money wise choices L5639 i5-4670k i7-4770k which all relate to his usage.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,425
8,388
126
just get a haswell core i5 with H87. use quicksync for encoding. you don't need a separate GPU.

quicksync is trash for anything but watching on a phone screen.


for free, OP can undervolt the 920 and save a handful of watts at idle (and probably quite a few at load. iirc i saved 30+ watts each with a c2q and an a2x4). OP can also set the computer to go to sleep (or go to sleep more aggressively). if OP's monitor isn't an LED backlight, that could also be a big source of heat (going from a 2005fpw to a 2713hm cut the power consumption in half), but again, aggressive power settings are free.

cheapest thing component-wise is changing out the video card. changing from an HD4870 (similar era) to a current 7950 dropped my idle by 40 watts. and that's at a tenth of the cost of a new processor, mobo, and potentially ram.
 
Last edited:

Zap

Elite Member
Oct 13, 1999
22,377
2
81
The short version is this.

OPTION 1:
Buy cheapest, lowest end modern graphics card.
Undervolt existing CPU.
COST: $0-40 (probably possible to sell GTX 275 for cost of low end graphics card)
RESULT: Same performance for what OP uses computer for, a bit less (tens of watts?) power draw/heat output.

OPTION 2:
Buy Haswell CPU + motherboard.
Undervolt Haswell CPU.
Use integrated graphics.
COST: $300-600 (Core i5 with B85 board and stock cooler, all the way to Core i7 with fancy overclocker motherboard and aftermarket cooling)
RESULT: Much lower power draw/heat output. Much faster performance. Get native USB 3.0 and SATA 6Gbps versus 3rd party solutions. Probably also quieter.

Just like many things in life, pay more to get more.

Or just get a i5/i7 and use the iGPU.
This is what I would do.

I'm with Gillbot, even though he can't find me. :thumbsup:

but his MB can be more inefficient, or he can buy a haswell mb which is more inefficient than yours...

I seem to recall X58 running pretty hot and being fairly power hungry on its own. According to Wikipedia the X58 chipset has a 28.6W TDP while the Z87 chipset has a 4.1W TDP.

You want to save power and edit videos, go for i7 3770k and Radeon HD 7770.

Close. I would go i7-4770K and integrated graphics.
 

3560freak

Member
Jul 11, 2009
25
0
0
Firstly, thanks for all of the replies/suggestions, this is a great forum. Secondly I guess I didn't explain how often I am on my PC, but it's sees daily use. It seems like there won't be significant money savings (but no one who builds/upgrades their PC expects much of that) but with the lower power/money back from selling old parts it will probably be a brake even over the life of the build. The heat is a pretty big issue (someone addressed this, small room an A/C cools down the house but not always the room) so I can appreciate the advise to just change the video card to lower temps. Changing the mobo would also give me USB 3.0 (don't have any usb 3.0 items yet) and SATA 6 (I do have an SSD). Good to get some opinions on this, thanks
 

BallaTheFeared

Diamond Member
Nov 15, 2010
8,115
0
71
We like to "exchange ideas" a lot, but in the end I just hope we provide you with enough facts for you to make your own informed choice. :thumbsup:
 

Concillian

Diamond Member
May 26, 2004
3,751
8
81
Yeah, it's hard to tell anyone for sure what to do, since everyone has different hardware budgets.

If things are tight, there's two more considerations which would be downgrade / sidegrade. Cheaper than the i5/i7 route, and also lower performing.

wait for the Haswell i3s to be out and go with one of those. video conversion speed would be slower than a 920, but really not as much as you might think for a dual core. All those little IPC improvements add up, plus HT, plus extra clock speed over a 920 means it actually performs on-par in some cases.
http://anandtech.com/bench/product/47?vs=677

The Haswell i3's will be marginally faster than that comparison. The IB i3 encoding benchmarks range from ~equal to ~60% with an average around 80-85% the speed of a stock 920. A downgrade, for sure, but would be a cheaper solution to lower power consumption and the more modern cores would be faster in anything using 1-2 cores.

The other option is the AMD route with a similar cost to an i3 (FX-6300)
http://anandtech.com/bench/product/47?vs=699

This is a little faster than the i3 in encoding, bringing it to sidegrade-ish performance. Faster than the i3 in multi-threaded, but slower in single threaded stuff. Also has higher power consumption than an i3.

People around here sometimes only see the i5/i7 options, as they are definitely the best choice if you're not worried about budget. However, the modern i3s are pretty good, and "good enough" for quite a lot of people. AMD has priced their recent options reasonably competitively, though the power consumption is nowhere near as solid as Intel's offerings. Anyway... two more options.
 
Last edited:

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,425
8,388
126
Yeah, it's hard to tell anyone for sure what to do, since everyone has different hardware budgets.

If things are tight, there's two more considerations which would be downgrade / sidegrade. Cheaper than the i5/i7 route, and also lower performing.

wait for the Haswell i3s to be out and go with one of those. video conversion speed would be slower than a 920, but really not as much as you might think for a dual core. All those little IPC improvements add up, plus HT, plus extra clock speed over a 920 means it actually performs on-par in some cases.
http://anandtech.com/bench/product/47?vs=677

The Haswell i3's will be marginally faster than that comparison. The IB i3 encoding benchmarks range from ~equal to ~60% with an average around 80-85% the speed of a stock 920. A downgrade, for sure, but would be a cheaper solution to lower power consumption and the more modern cores would be faster in anything using 1-2 cores.

can't just average the two percentage differences. on 2 pass encoding with turbo first pass the first pass performance is almost meaningless because everything is fast.

using bench's FPS figures for handbrake, if you have 10,000 frames to process, the first pass for the 920 is 133 seconds, while the i3 is 147 seconds. the second passes are 370 seconds and 571 seconds, respectively. your total 2 pass performance is 503 seconds vs. 745 seconds. so the i3 is only 67% of the speed of the 920. even with haswell improvements, current handbrake performance is going to be a big step back.
 
Last edited:
sale-70-410-exam    | Exam-200-125-pdf    | we-sale-70-410-exam    | hot-sale-70-410-exam    | Latest-exam-700-603-Dumps    | Dumps-98-363-exams-date    | Certs-200-125-date    | Dumps-300-075-exams-date    | hot-sale-book-C8010-726-book    | Hot-Sale-200-310-Exam    | Exam-Description-200-310-dumps?    | hot-sale-book-200-125-book    | Latest-Updated-300-209-Exam    | Dumps-210-260-exams-date    | Download-200-125-Exam-PDF    | Exam-Description-300-101-dumps    | Certs-300-101-date    | Hot-Sale-300-075-Exam    | Latest-exam-200-125-Dumps    | Exam-Description-200-125-dumps    | Latest-Updated-300-075-Exam    | hot-sale-book-210-260-book    | Dumps-200-901-exams-date    | Certs-200-901-date    | Latest-exam-1Z0-062-Dumps    | Hot-Sale-1Z0-062-Exam    | Certs-CSSLP-date    | 100%-Pass-70-383-Exams    | Latest-JN0-360-real-exam-questions    | 100%-Pass-4A0-100-Real-Exam-Questions    | Dumps-300-135-exams-date    | Passed-200-105-Tech-Exams    | Latest-Updated-200-310-Exam    | Download-300-070-Exam-PDF    | Hot-Sale-JN0-360-Exam    | 100%-Pass-JN0-360-Exams    | 100%-Pass-JN0-360-Real-Exam-Questions    | Dumps-JN0-360-exams-date    | Exam-Description-1Z0-876-dumps    | Latest-exam-1Z0-876-Dumps    | Dumps-HPE0-Y53-exams-date    | 2017-Latest-HPE0-Y53-Exam    | 100%-Pass-HPE0-Y53-Real-Exam-Questions    | Pass-4A0-100-Exam    | Latest-4A0-100-Questions    | Dumps-98-365-exams-date    | 2017-Latest-98-365-Exam    | 100%-Pass-VCS-254-Exams    | 2017-Latest-VCS-273-Exam    | Dumps-200-355-exams-date    | 2017-Latest-300-320-Exam    | Pass-300-101-Exam    | 100%-Pass-300-115-Exams    |
http://www.portvapes.co.uk/    | http://www.portvapes.co.uk/    |