Does x5650 consumes more than i7 920

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Apr 25, 2019
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i was watching in intel website that x5650 power consumption is 95 vs i7 920 is 130w

but doing some calculations of my build in this website

https://outervision.com/power-supply-calculator

it says, that my build with i7 920 consumes 385w " full hardware 100% tdp "
and if i change i7 920 for x5650 it goes to 485w

this means maybe?

4 cores of i7 920 = 520w/2? = 260
and 6 cores of x5650 = 570w/2) = 285w

what? no.. wait.. what kind of calculation do i have to do?

intel specs watts consumption means per each core... or for the full cpu in 100% tdp?

anyone can explain me this please, something is wrong..
 

ehume

Golden Member
Nov 6, 2009
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Outervision is bogus, for one thing. Always overstating power needs.
 

scannall

Golden Member
Jan 1, 2012
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i was watching in intel website that x5650 power consumption is 95 vs i7 920 is 130w

but doing some calculations of my build in this website

https://outervision.com/power-supply-calculator

it says, that my build with i7 920 consumes 385w " full hardware 100% tdp "
and if i change i7 920 for x5650 it goes to 485w

this means maybe?

4 cores of i7 920 = 520w/2? = 260
and 6 cores of x5650 = 570w/2) = 285w

what? no.. wait.. what kind of calculation do i have to do?

intel specs watts consumption means per each core... or for the full cpu in 100% tdp?

anyone can explain me this please, something is wrong..
Having had both, on the same motherboard and same cooler the 5650 ran both faster and cooler. I know it's anecdotal, but that's been my experience.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
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TDP is not power consumption. You can only loosely relate it to power consumption.

The 920 is a 45nm chip, whereas the X5650 is a 32nm chip.

That would be one big reason why the 920 would use more power.

It is older 45nm technology.

Overall, given the extra cores of the Xeon, I suspect that under load the two chips will not be really far apart in power consumption, with the Xeon having the edge.
 

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Apr 25, 2019
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TDP is not power consumption. You can only loosely relate it to power consumption.

The 920 is a 45nm chip, whereas the X5650 is a 32nm chip.

That would be one big reason why the 920 would use more power.

It is older 45nm technology.

Overall, given the extra cores of the Xeon, I suspect that under load the two chips will not be really far apart in power consumption, with the Xeon having the edge.

thanks for answering

i was checking more psu calculators, setted same builds, and in some websites it says more consume and in other less, weird..

i have this computer under a 500w psu ( real wattage it says, not generic )

i7 920 2.8ghz turbo
p6t deluxe
6 ddr3 mems
and 1060 gtx 3gb 1900clock memclock 2000
2 fan 120mm ( case and psu fan ) more heatsink fan 92mm
1 sdd

i think my cpu is enough, but many websites recommend me 650w with that calculators

i never got a problem, maybe in 1 year 1 bsod, computer was up 10 hours each day or more for more than 10 years
 

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Apr 25, 2019
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Having had both, on the same motherboard and same cooler the 5650 ran both faster and cooler. I know it's anecdotal, but that's been my experience.

can i know what build are you using? im planning to change my i7 920 for x5650 under a 500w psu

and i was checking more modern builds, wondering about " power consumption of new intel cpus " and is so close of these builds, that i dont find nothing logic sense to change of computer yet if intel dont give us a real change in technology, because x5650 overclocked can go so high and so close to modern CPUs, and that meltdown and spectre was just a marketing move, then, i dont feel any sense to change my full build yet

maybe just maybe for USB 4.0 when it arrives, but just maybe, because usb 2.0 ports with 3.0 usb pen drives, is really faster

and about sata 2 and sdd, they are so fast, that probabbly i dont feel too much difference beetwen sata 3 and 2 sdd

i think i dont have to buy a new computer, i just have to upgrade the CPU for the lowest xeon x5650

and about USB 3.0 or SATA 3, if i just get 1 pci card with usb 3.0 and sata 3 will be enough, of course, price is decreasing because all modern mobos comes with that technology already

and to be 100% honest, my i7 920 under 4.0ghz overclock runs everything in pretty fps under a LCD 24 inchs with 1060 gt 3gb ( bottleneck gpu - less temps guess, twiking it in less clock to balance the bottleneck )


i was just updating my cpu because x5650 is same socket and consume less watts

just for that, but honestly, opening 7 virtual machines i didnt have problem to play for example, diablo 2 in 7 virtual computers with 1 mouse and a key mouse lan repeaters, or for work

just some examples
 

topmysteries5

Member
Jan 31, 2019
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thanks for answering

i was checking more psu calculators, setted same builds, and in some websites it says more consume and in other less, weird..

i have this computer under a 500w psu ( real wattage it says, not generic )

i7 920 2.8ghz turbo
p6t deluxe
6 ddr3 mems
and 1060 gtx 3gb 1900clock memclock 2000
2 fan 120mm ( case and psu fan ) more heatsink fan 92mm
1 sdd

i think my cpu is enough, but many websites recommend me 650w with that calculators

i never got a problem, maybe in 1 year 1 bsod, computer was up 10 hours each day or more for more than 10 years
If you PSU is from a reputed brand like Corsair, EVGA, Antec, Seasonic with atleast Gold efficiency, then you won't have any problem, even if you upgrade to RTX 2070.

I'm 100% sure your GPU GTX 1060 3GB is getting PCI bottlenecked, resulting in lesser FPS and stuttering. I have GTX 1080 and GTX 1050ti, when pairing it with i7 3930k@4.4ghz, former looses upto 45% performance and latter looses approx 20% performance. With same gpus i get higher performance when paired with my i7 8700k@4.8ghz
 

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Apr 25, 2019
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If you PSU is from a reputed brand like Corsair, EVGA, Antec, Seasonic with atleast Gold efficiency, then you won't have any problem, even if you upgrade to RTX 2070.

I'm 100% sure your GPU GTX 1060 3GB is getting PCI bottlenecked, resulting in lesser FPS and stuttering. I have GTX 1080 and GTX 1050ti, when pairing it with i7 3930k@4.4ghz, former looses upto 45% performance and latter looses approx 20% performance. With same gpus i get higher performance when paired with my i7 8700k@4.8ghz

you are totally right, im in bottleneck of 45% between i7 920 and gtx 1060, i was wondering if this is the main reason of why my temps in each game of the market are so low, maybe the bottleneck is giving less stress to the gpu, and making a good balance of temps?

my PSU is EVGA 500W 80 plus, im surprised of test this PSU, its really nice, compared to coolermaster ( lost 2 coolermaster one of 800 w another of 600w in less than 3 years in a p6t deluxe 9800 gt i7 920 build... with only 3 gb ram ) then, after that bad luck with coolermaster, i tested EVGA 500w, and is awesome, also another good psu i had for more than 10 years and still working, is a vitsuba 600w generic, but, bad 12v rail for new gpus, but it, still working

X5650 is 12USD on aliexpress.
I would suggest you to get X5680 @ 40 USD.

based on many reviews about cost / performance, x5650 is better than x5680, of course, talking about "performance per watt ", also 5650 can resist more high temps, and it has a better overclocking under water heatsinks
 

topmysteries5

Member
Jan 31, 2019
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you are totally right, im in bottleneck of 45% between i7 920 and gtx 1060, i was wondering if this is the main reason of why my temps in each game of the market are so low, maybe the bottleneck is giving less stress to the gpu, and making a good balance of temps?

my PSU is EVGA 500W 80 plus, im surprised of test this PSU, its really nice, compared to coolermaster ( lost 2 coolermaster one of 800 w another of 600w in less than 3 years in a p6t deluxe 9800 gt i7 920 build... with only 3 gb ram ) then, after that bad luck with coolermaster, i tested EVGA 500w, and is awesome, also another good psu i had for more than 10 years and still working, is a vitsuba 600w generic, but, bad 12v rail for new gpus, but it, still working



based on many reviews about cost / performance, x5650 is better than x5680, of course, talking about "performance per watt ", also 5650 can resist more high temps, and it has a better overclocking under water heatsinks
X5680 (3.3ghz to 3.6ghz turbo) will oc more higher because it's already higher clocked than X5650 (2.66ghz to 3.06ghz turbo). X5680 will overclock more with less fsb stress.
 

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Apr 25, 2019
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X5680 (3.3ghz to 3.6ghz turbo) will oc more higher because it's already higher clocked than X5650 (2.66ghz to 3.06ghz turbo). X5680 will overclock more with less fsb stress.
i know but it consumes more power 130w x5680 vs 90 x5650

and 5650 less temps and more resistence, good when here does 50 degrees ambient

ill go for x5650 and oc if i need it
 

LTC8K6

Lifer
Mar 10, 2004
28,520
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i know but it consumes more power 130w x5680 vs 90 x5650

and 5650 less temps and more resistence, good when here does 50 degrees ambient

ill go for x5650 and oc if i need it

So you aren't that concerned with power use then?
 

topmysteries5

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Jan 31, 2019
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i know but it consumes more power 130w x5680 vs 90 x5650

and 5650 less temps and more resistence, good when here does 50 degrees ambient

ill go for x5650 and oc if i need it
135w and 95w is not their power consumption, they are their TDP, this is total misleading. Intel lies about their power consumption.
8700k has 95w tdp, at stock with no oc it consumes 75-80watts, but when you oc it to 4.8ghz, it eats 170w. My older rig has i7 6800k (140w tdp) but consumes as much as 200w @ 4.2ghz. My server has dual 2686v3 (2x18cores, 2x120w tdp) but it consumes 430w for both when overclocked to 3ghz. I have accurately measures power consumption with Corsair link on AX1200i psu. I have verified with Kill-a-watt too. Since X56** are already 9 years old CPU, x5650 has multiplier range of 133mhz*20 for base and 133*23 for turbo. x5680 has 133*25 for base and 133*27 for turbo. You can only oc these by ocing fsb. To get 4ghz, you need 148*27 (less stress on ram, chipset, memory controller) for x5680.
X5650 will need 174*23, which will need more volts for cpu+ chipset+ memory (more stress-sometimes high fsb mess up ram latency, reducing performance).
 
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Shmee

Memory & Storage, Graphics Cards Mod Elite Member
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What is your PSU? Depending on price, just get the x5650 or higher, plus you can OC it with your board decently I suspect. May need a bios update though for the CPU.
 

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Apr 25, 2019
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So you aren't that concerned with power use then?

im just looking for low power consumption and nice performance upgrade, and i think x5650 is the best option

135w and 95w is not their power consumption, they are their TDP, this is total misleading. Intel lies about their power consumption.
8700k has 95w tdp, at stock with no oc it consumes 75-80watts, but when you oc it to 4.8ghz, it eats 170w. My older rig has i7 6800k (140w tdp) but consumes as much as 200w @ 4.2ghz. My server has dual 2686v3 (2x18cores, 2x120w tdp) but it consumes 430w for both when overclocked to 3ghz. I have accurately measures power consumption with Corsair link on AX1200i psu. I have verified with Kill-a-watt too. Since X56** are already 9 years old CPU, x5650 has multiplier range of 133mhz*20 for base and 133*23 for turbo. x5680 has 133*25 for base and 133*27 for turbo. You can only oc these by ocing fsb. To get 4ghz, you need 148*27 (less stress on ram, chipset, memory controller) for x5680.
X5650 will need 174*23, which will need more volts for cpu+ chipset+ memory (more stress-sometimes high fsb mess up ram latency, reducing performance).

wow, and you are talking just about the " max turbo frequency "

another proof that intel doesnt care about ecology, they set a camouflage word for overclock, as " turbo "

if intel is honest, they will put tsp 95w and ( 170 ) but not, they like lie us, now im wondering if AMD does the same, or they truly say the real power consumption at max

What is your PSU? Depending on price, just get the x5650 or higher, plus you can OC it with your board decently I suspect. May need a bios update though for the CPU.

i did the last bios update on the board, necesary for x5650, i have two PSU now, 1 evga 500w 80 plus and another 850watts strike x, im keeping this for my x5650 and if i need OC on it in the future
 

topmysteries5

Member
Jan 31, 2019
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im just looking for low power consumption and nice performance upgrade, and i think x5650 is the best option



wow, and you are talking just about the " max turbo frequency "

another proof that intel doesnt care about ecology, they set a camouflage word for overclock, as " turbo "

if intel is honest, they will put tsp 95w and ( 170 ) but not, they like lie us, now im wondering if AMD does the same, or they truly say the real power consumption at max



i did the last bios update on the board, necesary for x5650, i have two PSU now, 1 evga 500w 80 plus and another 850watts strike x, im keeping this for my x5650 and if i need OC on it in the future
Same with threadripper too. 2950x 16 core has 180w tdp, but when you oc it to 4ghz, power consumption jumps to 250-260watt range, little more with AVX2 load like graphics rendering. This is why none of the 240mm rads can properly cool it. 2990wx 32 cores consumes lot more power than its 250w tdp.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
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I would think that having 6 cores would be important today, add to that the lower TDP, and the 5650 is the obvious choice of the two.
 

DrMrLordX

Lifer
Apr 27, 2000
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i know but it consumes more power 130w x5680 vs 90 x5650

Not really true.

The power consumption is based solely on the higher default clockspeed for the x5680. If you have a board that will allow you to overclock, then you can set clockspeed and voltage to whatever setting you want to get the power consumption you want. There is no reason why you can't "turn your x5680 into a x5650" by reducing CPU multi. The x5680 should be a better bin as well.
 
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guys, i got these images..
CPU ONLY

i7 920 2.66 turbo 109 watts
i7 920 3.00 ghz 112 watts
i7 920 4.00 ghz 148 watts

and these whole system
RFP6yrw.png
 

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Apr 25, 2019
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Not really true.

The power consumption is based solely on the higher default clockspeed for the x5680. If you have a board that will allow you to overclock, then you can set clockspeed and voltage to whatever setting you want to get the power consumption you want. There is no reason why you can't "turn your x5680 into a x5650" by reducing CPU multi. The x5680 should be a better bin as well.

my board can control voltages, do you have any guide to my a desktop computer consume only 50 watts as max? im looking for something like that
 

topmysteries5

Member
Jan 31, 2019
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my board can control voltages, do you have any guide to my a desktop computer consume only 50 watts as max? im looking for something like that
If cpu only power consumption 50w max, then you can disable hyper threading and set tdp limit as 50w in bios. Your cpu speed will be adjusted automatically according to load.

If you want whole system power consumption to be under 50w, then it is possible for sure but at 1.5-1.6ghz range, that too at low load. Lol idk what you'll be able to do on that pc after that.
Also you didn't mention what is your PSU ratings, is it 80plus gold/plat/titanium. Even best of the best psu gives 75% efficiency at 50w load, which means 12.5w will be still wasted. You'll be left with 37.5w, each ddr3 ram stick consumes 7w, ssd /hard disk consumes 6w. Your motherboard's power consumption will be approx 15watts (including vrm and chipset consumption)
Total 37.5w-7w-6w-15w=9.5w.
 

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Apr 25, 2019
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If cpu only power consumption 50w max, then you can disable hyper threading and set tdp limit as 50w in bios. Your cpu speed will be adjusted automatically according to load.

If you want whole system power consumption to be under 50w, then it is possible for sure but at 1.5-1.6ghz range, that too at low load. Lol idk what you'll be able to do on that pc after that.
Also you didn't mention what is your PSU ratings, is it 80plus gold/plat/titanium. Even best of the best psu gives 75% efficiency at 50w load, which means 12.5w will be still wasted. You'll be left with 37.5w, each ddr3 ram stick consumes 7w, ssd /hard disk consumes 6w. Your motherboard's power consumption will be approx 15watts (including vrm and chipset consumption)
Total 37.5w-7w-6w-15w=9.5w.

for example..

we are in 2019 and a lot of black hats around internet making harvesting fake websites and even hacking a lot of websites to put that code and mining with your computer

if intel amd gigabyte asus and more, think in the user, and think in 2019, they will launch a software than will let you set up that max voltage cores and more automatically when you surf the web, or whatever you want to do, without fall in deeply steps as overclocking underclocking undervolting, just automatic things to set that with 1 click as a normal user

i know you can set in windows, use only 10% of the cpus, and things as that, but i dont know if i can do that with the cpu, and i dont know if this can be unlocked for javascript surfing the web in a browser

the important thing is, why in 2019 we dont have a software like that to do everything more easy, i know overclocking, underclocking, undervolting, but normal users ( 95% of the world users population ) dont know that.

even movistar was hacked with the "miningcoin script "
 

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Apr 25, 2019
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If cpu only power consumption 50w max, then you can disable hyper threading and set tdp limit as 50w in bios. Your cpu speed will be adjusted automatically according to load.

If you want whole system power consumption to be under 50w, then it is possible for sure but at 1.5-1.6ghz range, that too at low load. Lol idk what you'll be able to do on that pc after that.
Also you didn't mention what is your PSU ratings, is it 80plus gold/plat/titanium. Even best of the best psu gives 75% efficiency at 50w load, which means 12.5w will be still wasted. You'll be left with 37.5w, each ddr3 ram stick consumes 7w, ssd /hard disk consumes 6w. Your motherboard's power consumption will be approx 15watts (including vrm and chipset consumption)
Total 37.5w-7w-6w-15w=9.5w.

i did this

setted up max cpu usage in energy windows manager, reboot the computer, tryied if the cpu went only to 15% and not, went to 100% stressing it with everest ultimate

not working
 

DrMrLordX

Lifer
Apr 27, 2000
21,583
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my board can control voltages, do you have any guide to my a desktop computer consume only 50 watts as max? im looking for something like that

No. 50W won't get you much computing power using old Nehalem and Westmere CPUs. You can try downclocking and undervolting to extreme levels, but as @topmysteries5 indicated, that'll get you clockspeeds below 2 GHz in all probability.

You will need something more modern to achieve any appreciable amount of computing at low power. It seems like you want a U or Y-designated processor from Intel from recent years, or maybe something ARM-based.
 
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