Intel Core i7-4790T (2.7Ghz) LGA1150, used at CEX, £135.00
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Intel Core i7-4790T (2.7Ghz) LGA1150, used at CEX, £135.00

83
Found 20th Mar 2016
I bought one of these last week to replace my Haswell Pentium G chip on my LGA1150 motherboard. I am very pleased with the performance boost. There's a bonus in the reduced power consumption too. The official Intel ARK link is here: ark.intel.com/pro…GHz

This quad core 8 thread i7 has a TDP of 45W and typical power consumption of just 36W. There are only 'mini' reviews of this particular processor online, but they both sing high praise of it:
forums.overclockers.co.uk/sho…657
forums.anandtech.com/sho…156

CEX says there are 18 left in stock online. Mine came in very basic bubblewrap but has no signs of 'use'. After plenty of testing in the last week I'm happy there's no issues with it and also you get a 2yr warranty with these guys, which is some reassurance rather than getting a used component from your average eBayer.
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Original Poster
http://i.imgur.com/32glU5v.png
Reduced power consumption = Reduced performance, but should still give decent speeds.

Good price
'Used' CPU? Doesn't seem like a good idea
Edited by: "donslibi" 20th Mar 2016
nice.
how it compares with my i5 4690k?
donslibi

'Used' CPU? Doesn't like a good idea



There's not much that can go wrong with a non-k Intel CPU. They can't be overclocked so there's no issues of abuse there. You'll know pretty soon after installing it if it's faulty or not (and so should CEX if it's properly tested).

What exactly isn't a "good idea" with buying a used, locked Intel CPU?

Edited by: "Chaz_UK" 20th Mar 2016
MarcoLoves360

how it compares with my i5 4690k?



Not that much better. Also you can't overclock this unlike your 4690k.
donslibi

'Used' CPU? Doesn't like a good idea


They either work or they don't so when it arrives if it's working it'll probably be fine for another 5 or 10 years. Overclocked CPU's might be a cause for concern of course but even overclocking may only reduce the lifespan by 50% and a CPU may well last 10 to 20 years although it'll be of little use in 20 years time.
I managed to score a 4690k from them recently for £115
adderrson

I managed to score a 4690k from them recently for £115


How on Earth did you do that. I've seen the prices for those and they've always been 150
Chaz_UK

What exactly isn't a "good idea" with buying a used, locked Intel CPU?



I think they mean they're worried that the CPU might have been run hot with the stock heatsink in a case with rubbish airflow.
Chuggee

I think they mean they're worried that the CPU might have been run hot … I think they mean they're worried that the CPU might have been run hot with the stock heatsink in a case with rubbish airflow.



All CeX stuff has a years warranty though.
0BS1D1AN

How on Earth did you do that. I've seen the prices for those and they've … How on Earth did you do that. I've seen the prices for those and they've always been 150



Ordered a 'non k' 4690, was sent a 4690k. After my voucher from trade ins I only spent £25 also.

Fortunately for us CEX has a tendency to employ the non-tech savvy whom can't tell the difference between 2 similarly named products
ollie87

All CeX stuff has a years warranty though.



Two years on a CPU, I just ordered an i5-4690K from them.
Edited by: "hornblowerracing" 20th Mar 2016
ollie87

All CeX stuff has a years warranty though.



2 Years now apparently

Although I have heard many stories of them not honoring warranty but that's another discussion.
Edited by: "joshp" 20th Mar 2016
cannot be O.C, even the 2600k is a much better deal
Chuggee

I think they mean they're worried that the CPU might have been run hot … I think they mean they're worried that the CPU might have been run hot with the stock heatsink in a case with rubbish airflow.



As long as it was used within the thermal margins for the CPU, there's very little chance of problems. Additionally. any CPU that was exceeding the thermal margins would downclock and eventually the system would shut down rather than fry itself.

You'd have to be extremely unlucky to get a consumer grade CPU that had been running under load under such conditions that it damaged itself. I can't help but feel that the potential for problems is negligible.

Edit: The savings on the deal are well worth the risk with this exact CPU selling for around £250 retail.

Edited by: "Chaz_UK" 20th Mar 2016
spannerzone

They either work or they don't so when it arrives if it's working it'll … They either work or they don't so when it arrives if it's working it'll probably be fine for another 5 or 10 years. Overclocked CPU's might be a cause for concern of course but even overclocking may only reduce the lifespan by 50% and a CPU may well last 10 to 20 years although it'll be of little use in 20 years time.



What utter nonsense - stop posting pseudo-science - this is HotUKDeals. I'm giving heat for the deal, find another forum for your technical discussion...
miaomiaobaubau

cannot be O.C, even the 2600k is a much better deal



Good luck plugging it into a 1150 mobo though!
aLV426

What utter nonsense - stop posting pseudo-science - this is HotUKDeals. … What utter nonsense - stop posting pseudo-science - this is HotUKDeals. I'm giving heat for the deal, find another forum for your technical discussion...



oO
I always keep an eye out for a cheap 3770K to upgrade from my 2500K, never seem to be any floating around. Not that my 2500K is struggling, I just fancy a tinker about with the machine.
aLV426

What utter nonsense - stop posting pseudo-science - this is HotUKDeals. … What utter nonsense - stop posting pseudo-science - this is HotUKDeals. I'm giving heat for the deal, find another forum for your technical discussion...



How dare he write an informative post. The audacity!
The standard 4 core turbo clock is 3.3ghz anyway, so it's going to be running at that sort of speed most of the time, I wonder if it could sustain 3.9 on all four? Tempted to grab one of these.
Bobbith

The standard 4 core turbo clock is 3.3ghz anyway, so it's going to be … The standard 4 core turbo clock is 3.3ghz anyway, so it's going to be running at that sort of speed most of the time, I wonder if it could sustain 3.9 on all four? Tempted to grab one of these.



Maximum rated frequency is 2700MHz, with turbo on all cores at 3300MHz. Three cores have a 3600MHz turbo ceiling. Two cores can boost to 3800MHz, and single core turbo is 3900MHz.

forums.anandtech.com/sho…156
Unless you are running a Pentium G with an 1150 already, this isn't worth considering.

No issue with the used chip, just that it's not a huge upgrade over any i5 on the 1150 socket already.

Unless you are in the same position as OP, save the money and get a bigger upgrade for slightly more or wait and upgrade to 1151.
Hmm... HotUKNerds... Actually that sounds like a horrific website
rev6

Maximum rated frequency is 2700MHz, with turbo on all cores at 3300MHz. … Maximum rated frequency is 2700MHz, with turbo on all cores at 3300MHz. Three cores have a 3600MHz turbo ceiling. Two cores can boost to 3800MHz, and single core turbo is 3900MHz.http://forums.anandtech.com/showthread.php?t=2390156



The few Intel non k haswell era chips I've had will sit at max turbo freq on all cores quite happily, this is similar architect.
Bobbith

The few Intel non k haswell era chips I've had will sit at max turbo freq … The few Intel non k haswell era chips I've had will sit at max turbo freq on all cores quite happily, this is similar architect.



What's their TDP?
Bobbith

The few Intel non k haswell era chips I've had will sit at max turbo freq … The few Intel non k haswell era chips I've had will sit at max turbo freq on all cores quite happily, this is similar architect.


Z87 and Z97 I think they got some small degree O.C. on a non K CPU
rev6

What's their TDP?


Obv higher than this heh, pushing the clock higher would mean more power draw. Im sure these are just the same chips with a different set of parameters set before it leaves the factory, no idea really though, that's why my first post was a question
Bobbith

Obv higher than this heh, pushing the clock higher would mean more power … Obv higher than this heh, pushing the clock higher would mean more power draw. Im sure these are just the same chips with a different set of parameters set before it leaves the factory, no idea really though, that's why my first post was a question



I answered your question
kharma45

I always keep an eye out for a cheap 3770K to upgrade from my 2500K, … I always keep an eye out for a cheap 3770K to upgrade from my 2500K, never seem to be any floating around. Not that my 2500K is struggling, I just fancy a tinker about with the machine.



Take the 2500 out and put it back in again then, ive just saved you a fortune lol.

I actually have the 3770k also bought second hand, overclocked to 4.9ghz without even deliding! I went further, but i was worried (even though temps were fine), so backed it back down. I think im very lucky and received a great chip.

The only reason i even bother overclocking is for fsx/p3d, its a notoriously inefficient pierce of software and will use all you throw at it, and still lag grrr.
miaomiaobaubau

Z87 and Z97 I think they got some small degree O.C. on a non K CPU



Personal experience says that you can tweak them through any multiplier value the chip would normally run at, ie upper limit is the single core turbo. And not restricted to 97/87 chipsets either.
rev6

I answered your question



Sorry all I could see is the technical specs, I'll re-read later when I'm not on mobile
I was looking at this cpu last week on CEX site and was interested at that price. I was thinking of trading in some of my old rare and collectible Gamecube games, as they have good trade-in value on CEX site but heard CEX are shifty and can lose your stuff without compensating you or honouring trades. What are people's experience here with sending out stuff in trade with CEX?
Anyone know how this would compare with an i5 4430 at 3GHZ? I realise it probably wouldn't be a huge upgrade but as it's for the living room HTPC I like the idea of cutting the heat and power consumption but obviously not if it is likely to be slower than what I have already?

Also my current CPU as I believe all i5 are, is a pure 4 core design with no extra threads, do the 4 extra threads on the i7 help at all with overall performance?
ST3123

Anyone know how this would compare with an i5 4430 at 3GHZ? I realise it … Anyone know how this would compare with an i5 4430 at 3GHZ? I realise it probably wouldn't be a huge upgrade but as it's for the living room HTPC I like the idea of cutting the heat and power consumption but obviously not if it is likely to be slower than what I have already?Also my current CPU as I believe all i5 are, is a pure 4 core design with no extra threads, do the 4 extra threads on the i7 help at all with overall performance?



It wouldn't be a worthy upgrade to be honest. The extra threads help with specific tasks like encoding or using virtual machines but as a HTPC... Unless you want the lower TDP.
ST3123

Anyone know how this would compare with an i5 4430 at 3GHZ? I realise it … Anyone know how this would compare with an i5 4430 at 3GHZ? I realise it probably wouldn't be a huge upgrade but as it's for the living room HTPC I like the idea of cutting the heat and power consumption but obviously not if it is likely to be slower than what I have already?Also my current CPU as I believe all i5 are, is a pure 4 core design with no extra threads, do the 4 extra threads on the i7 help at all with overall performance?



Cutting heat and power consumption, negligible meaning makes no difference for that purpose, meaning it's not worth considering it. Also would you need the extra threads for a HTPC I doubt it.

Edited by: "fishmaster" 20th Mar 2016
Chuggee

I think they mean they're worried that the CPU might have been run hot … I think they mean they're worried that the CPU might have been run hot with the stock heatsink in a case with rubbish airflow.



They have very good thermal control - the CPUs are generally robust and Intel have very low power consumption too. Likewise, I can't see a used CPU being an issue at all especially with 2 year warranty from them. I saw an i7-3820 for £95 in my local CeX.
rev6

It wouldn't be a worthy upgrade to be honest. The extra threads help with … It wouldn't be a worthy upgrade to be honest. The extra threads help with specific tasks like encoding or using virtual machines but as a HTPC... Unless you want the lower TDP.



Ok, I take it in terms of gaming the i7 has little advantage over my current i5 too?

Thought it would be a nice little upgrade but I think I was mistaken. Even if I sold the i5 4430 it would probably end up costing me about £40-50 so not worth it by the sounds of it....
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