i5-3320M vs. i5-5300U

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SlowSpyder

Lifer
Jan 12, 2005
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The i5-5300U is 14nm, 2.3GHz base / 2.9GHz turbo, Broadwell architecture. The i5-3320M is 22nm, 2.6GHz base / 3.3GHz turbo, Ivy Bridge architecture.

I don't care about power use. This is a work laptop and I'm trying to decide which system to configure for myself. Both will have 8GB and an SSD. When I use the machine it'll be plugged in 99% of the time. Graphics performance is a non-issue for this system. So considering raw performance is my biggest concern, which would you choose?
 
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SlowSpyder

Lifer
Jan 12, 2005
17,305
1,002
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ShintaiDK said:
Higher IPC, more aggressive turbo.
Click to expand...

2.9/2.3 = ~26% frequency bump.

3.3/2.6 = ~27% frequency bump.

It would seem they are pretty close, the 3320M actually having a slightly higher bump in frequency. I guess I'm not sure either way, the extra clock speed probably makes up for the IPC difference to some degree, but I'm not sold on it being faster, and faster is really all I'm looking for.

The machines in question are an HP 8470P and an HP 840 G2 laptop, by the way.
 
ShintaiDK

ShintaiDK

Lifer
Apr 22, 2012
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I mean more aggressive turbo that it will turbo longer/higher in average.

HP laptops? I feel sorry for you.

Isnt there a review for both on notebook review you can compare with?
 
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SlowSpyder

Lifer
Jan 12, 2005
17,305
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ShintaiDK said:
I mean more aggressive turbo that it will turbo longer/higher in average.

HP laptops? I feel sorry for you.

Isnt there a review for both on notebook review you can compare with?
Click to expand...


Got ya, thanks.

I'm actually pretty happy with both of the machines, they are huge improvements over the laptops we were getting from them in the past (way back with the Evo N600's they put the mobile P4 heatsink directly next to the harddrive... those were the days, a dead harddrive or two every day). I'll look for info on both machines, but figured people here would have some thoughts on the CPU's.
 
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dark zero

Platinum Member
Jun 2, 2015
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3320M by far.

The U tier are really known to throttle a lot in heavy works. The M and H tier despite having higher power consumption, doesn't throttle like the U tier.

If you can get a H or M tier Broadwell processor. By any means, DON'T get any U tier processor. Is the worst mistake by far.
 
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jaydee

Diamond Member
May 6, 2000
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Which laptop? The chassis of the laptop with a ULV processor, influences how much the CPU will throttle (due to its ability to dissipate heat).
 
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jaydee

Diamond Member
May 6, 2000
4,500
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SlowSpyder said:
HP 840G2 'ultrabook'.
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Some manufactures have put ULV processors in "normal" laptop chassis and I'm guessing that they don't throttle much (or could at least be overridden in the BIOS to not throttle since the casing can support higher TDPs).

In this case, the ultrabook chassis is definitely going to throttle quite a bit. For raw performance, the i5-3320M would offer a lot more performance.
 
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jaydee

Diamond Member
May 6, 2000
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Abwx

Lifer
Apr 2, 2011
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jaydee said:
Maybe in short (<1 minute) bursts, but not sustained.
Click to expand...

That s possible if we make abstraction of power usages, but all in all there s quite a gap between the two CPUs and it s not the eventual slightly higher perf that will make a difference, a SSD is much more influencial and will level any difference.

The GPU is also not to be underestimated, the one in IB is outdated and wont cut it with OpenCL if ever such extensions are used, and they are, in office applications, even for basic usages it lack recent hardware acceleration, has low perf watt and wont be supported as well as recent ones by Intel s future drivers..
 
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jaydee

Diamond Member
May 6, 2000
4,500
3
81
Abwx said:
That s possible if we make abstraction of power usages, but all in all there s quite a gap between the two CPUs and it s not the eventual slightly higher perf that will make a difference, a SSD is much more influential and will level any difference.

The GPU is also not to be underestimated, the one in IB is outdated and wont cut it with OpenCL if ever such extensions are used, and they are, in office applications, even for basic usages it lack recent hardware acceleration, has low perf watt and wont be supported as well as recent ones by Intel s future drivers..
Click to expand...

First, I think we're a long way off from worrying about lacking solid driver support from Intel on Ivy bridge.

Second, did you read the OP?

I don't care about power use. This is a work laptop and I'm trying to decide which system to configure for myself. Both will have 8GB and an SSD. When I use the machine it'll be plugged in 99% of the time. Graphics performance is a non-issue for this system. So considering raw performance is my biggest concern, which would you choose?
Click to expand...


I guess we don't know what applications are being used. I just ran some benchmarks recently on a friends i7-5500U (HP Spectre x360). CPU is 2.4 turbo to 3.0 GHz. During handbrake encoding, it throttle down to 2.0 GHz (7 watts power draw) after a minute or two for the duration of the test (yes it was plugged in). It doesn't matter if the OP is encoding or some other task, the point is, full CPU load beyond a couple minutes limits you a lot. The i5-3320M will not do that.

Even in a burst, at best the Broadwell i5 ULV will come close to matching the Ivy Bridge i5 35W part.
 
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SlowSpyder

Lifer
Jan 12, 2005
17,305
1,002
126
Apps are nothing special... IE, Chrome, MS Office suite (2010, 365), Active Directory, command prompts, MS Lync for voice, presenting, etc. Typical stuff running in the background. Nothing really heavy weight.

Now that I've used both, they both feel sluggish to me... guess I'm looking for the least sluggish, but not sure it matters too much really now that I've had some keyboard time with them.
 
sm625

sm625

Diamond Member
May 6, 2011
8,172
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The 3320M is faster in every way. single thread and multithread. The only reason to take a 5300U over it is if you want battery life.
 
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SPBHM

Diamond Member
Sep 12, 2012
5,065
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you have to compare the entire laptops because of thermals and battery capacity, but just as a CPU the 3320M looks better I think, 35W is quite fine for a regular sized laptop.
 
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