i5 3339y vs 4200y

Nayes · May 21, 2014

Hello, I got a few questions about intel Y-series processors. I have to choose between an i5-3339y and i5-4200y (hp split x2).

The first question is about the performance overall, I’m aware that its 3th gen vs 4th gen, but it seems Intel goes down with frequency, and voltage. If I’m correct informed the 3339y is 1.5 Ghz base, single core 2.0 Ghz or 2 cores with 1.8 Ghz in turbo mode. The 4200y comes down with only 1.4 Ghz base, 1.9 Ghz single core, and 1.6 Ghz dual core boost. Tough I can do the math in Frequency, I’m confused about the features implimented, as for the 3339y the F16C instructions, and for the 4200y the AVX2 and FMA3 instructions.

QUESTION: do most games even use these features? If yes are they applied automaticly? And if it comes to raw performance and FPS, what would matter more?
I am aware, that this is not a gaming ultrabook or whatever, I know about discrate graphics and such, but I play occasionally, and older games like X3 Reunion, so it’s fine for me.

Another question about the Intel HD 4000 vs the Intel HD 4200. The Y-series have 850 Mhz turboboosted, where the 4200 has 200 Mhz base, and the 4000 - 350 Mhz.

QUESTION: Does the Base clock speed matter? Which will perform better? (16 pipelines @ 4000 vs 20 pipelines @ 4200) AND considering the frequency and the features of the proccessors, which is better? don’t care much about battery life, if its 5-6 hours or 3-4 hours, I want the better, faster option x)

And the last question off topic maybe, About DDR3 RAM.

QUESTION: If I buy a very good RAM with low latency, would it have an impact on the performance of the int. graphics card? (shared memory) in games, and general? Which is better 1333 mhz with lower latency than 1600 mhz avrg. latency? (I know about the 4200y DDR3L/LPDDR3 only support)

thank you for you time.

MU_Engineer · May 22, 2014

Nayes :

The 3xxx (Ivy Bridge) processors are a generation older than the 4xxx (Haswell) processors. The Haswell units support a few new CPU instructions as you noted. However, the dirty little secret is that most software is compiled to the lowest common denominator unless you compile it yourself with a brand-spanking-new compiler you're getting something that will run perfectly on the oldest 64-bit chip, a 2003-era single-core Athlon 64. Haswell isn't any faster than Sandy/Ivy Bridge using such programs and really not any faster even if you specifically optimize and compile for it. (Haswell is mainly a reduce-power "tick" from Intel.) I'd pick the 3339y over the 4200y because of the higher clock speeds of the former leading to better performance.

QUESTION: do most games even use these features? If yes are they applied automaticly? And if it comes to raw performance and FPS, what would matter more?

Most games if they are 64-bit will be compiled to take advantage of no more recent advances than the features of original Athlon 64 of 2003. If they are 32-bit, they are likely compiled with only a 1999-era PIII's support for first-generation SSE. These features would be applied automatically.

As far as raw FPS is concerned, you are using an ultra-low-volt platform. Don't expeect miracles out of it. Raw clockspeed is your best bet here so go with the Ivy Bridge i5-3339 here.

QUESTION: Does the Base clock speed matter? Which will perform better? (16 pipelines @ 4000 vs 20 pipelines @ 4200) AND considering the frequency and the features of the proccessors, which is better? don’t care much about battery life, if its 5-6 hours or 3-4 hours, I want the better, faster option x)

If you really want performance, get yourself a regular laptop with a 35-watt processor or a gaming laptop with a discrete GPU and a 45+ watt processor. Or get yourself a desktop. "Ultrabooks" are designed to be thin, light, neat-looking, and boost average selling prices for Intel in the face of declining laptop prices due to competition from AMD, ARM-based Chromebooks, and tablets. They are most defintely NOT designed for performance. You'd be looking at a discrete GPU if you want any real performance. Of the two, the 20 unified shaders of the HD4200 (discrete pipelines disappeared in ~2007 with the advent of OpenGL 3.0/Direct3D 10) would be faster than the 16 unified shaders of the HD4000.

And the last question off topic maybe, About DDR3 RAM.

QUESTION: If I buy a very good RAM with low latency, would it have an impact on the performance of the int. graphics card? (shared memory) in games, and general? Which is better 1333 mhz with lower latency than 1600 mhz avrg. latency? (I know about the 4200y DDR3L/LPDDR3 only support)

thank you for you time.

Graphics is highly bandwidth intensive and not very sensitive to latency. Tests with Intel IGPs/AMD APUs shows that bandwidth is the most important for graphics performance. I'd pick the DDR3L-1600 over the DDR3L-1333 in that case. The latency is also about identical between those two sets of memory. "Standard" CL9 DDR3-1333 that a laptop maker would use has a latency of 0.675 ns vs. a latency of 0.6875 ns with standard CL11 DDR3-1600. Pick the memory with the higher bandwith. Or better, pick a laptop or much better, a desktop, with a discrete GPU and enjoy considerably higher graphical performance.

Nayes · May 28, 2014

MU_Engineer :

Nayes :

The 3xxx (Ivy Bridge) processors are a generation older than the 4xxx (Haswell) processors. The Haswell units support a few new CPU instructions as you noted. However, the dirty little secret is that most software is compiled to the lowest common denominator unless you compile it yourself with a brand-spanking-new compiler you're getting something that will run perfectly on the oldest 64-bit chip, a 2003-era single-core Athlon 64. Haswell isn't any faster than Sandy/Ivy Bridge using such programs and really not any faster even if you specifically optimize and compile for it. (Haswell is mainly a reduce-power "tick" from Intel.) I'd pick the 3339y over the 4200y because of the higher clock speeds of the former leading to better performance.

QUESTION: do most games even use these features? If yes are they applied automaticly? And if it comes to raw performance and FPS, what would matter more?

Most games if they are 64-bit will be compiled to take advantage of no more recent advances than the features of original Athlon 64 of 2003. If they are 32-bit, they are likely compiled with only a 1999-era PIII's support for first-generation SSE. These features would be applied automatically.

As far as raw FPS is concerned, you are using an ultra-low-volt platform. Don't expeect miracles out of it. Raw clockspeed is your best bet here so go with the Ivy Bridge i5-3339 here.

QUESTION: Does the Base clock speed matter? Which will perform better? (16 pipelines @ 4000 vs 20 pipelines @ 4200) AND considering the frequency and the features of the proccessors, which is better? don’t care much about battery life, if its 5-6 hours or 3-4 hours, I want the better, faster option x)

If you really want performance, get yourself a regular laptop with a 35-watt processor or a gaming laptop with a discrete GPU and a 45+ watt processor. Or get yourself a desktop. "Ultrabooks" are designed to be thin, light, neat-looking, and boost average selling prices for Intel in the face of declining laptop prices due to competition from AMD, ARM-based Chromebooks, and tablets. They are most defintely NOT designed for performance. You'd be looking at a discrete GPU if you want any real performance. Of the two, the 20 unified shaders of the HD4200 (discrete pipelines disappeared in ~2007 with the advent of OpenGL 3.0/Direct3D 10) would be faster than the 16 unified shaders of the HD4000.

And the last question off topic maybe, About DDR3 RAM.

QUESTION: If I buy a very good RAM with low latency, would it have an impact on the performance of the int. graphics card? (shared memory) in games, and general? Which is better 1333 mhz with lower latency than 1600 mhz avrg. latency? (I know about the 4200y DDR3L/LPDDR3 only support)

thank you for you time.

Graphics is highly bandwidth intensive and not very sensitive to latency. Tests with Intel IGPs/AMD APUs shows that bandwidth is the most important for graphics performance. I'd pick the DDR3L-1600 over the DDR3L-1333 in that case. The latency is also about identical between those two sets of memory. "Standard" CL9 DDR3-1333 that a laptop maker would use has a latency of 0.675 ns vs. a latency of 0.6875 ns with standard CL11 DDR3-1600. Pick the memory with the higher bandwith. Or better, pick a laptop or much better, a desktop, with a discrete GPU and enjoy considerably higher graphical performance.

Thank you for your time and effort, I really appreciate your help, and I mean it! I really do!

Another questions I would like to ask:

1. How does the turbo boost for the CPU and the GPU work?
Let’s look at the i5-3339y – 1.4 Ghz base, 2.0 Ghz single core, and 1.8 Ghz for both cores.

QUESTION: When does the intel HD 4000 use the turbo boost? (350 Mhz base, 850 Mhz turbo.)
Is it like when only one core is used, the CPU work at games @ 2.0 Ghz & 850 Mhz, or is turbo boost only for either CPU or GPU? At which clock speed would the GPU run when there are 2 cores boosted? I ask cause if the turbo boost is only for either - or, then it makes sense to get the 3339y since 350 Mhz base clock is 75% more that the 200 Mhz of the i5-4200y.

2. Overall, consider the both CPU’s with their GPU’s, which would be faster (even if little) in games? (I know I ask the same question, I mean considering the GPU’s and their differences)

I wanted to add, that I got a decent Desktop PC, with discrete card and quad CPU, and my GF has a Asus K56CB with a discrete 128bit GT 740M! So the HP split X2 is just for the go, with light games like X3 reunion and MW2, Dead Space 3....

Thank you for your advice, and for your time, again.

MU_Engineer · May 28, 2014

Nayes :

The CPU's base frequency is the highest speed it is guranteed to be able to run at under any conditions. Newer CPUs like these with Turbo Boost can raise their clock speed to a higher limit based on how heavily the CPU is being used, its power consumption, and its temperature. Lighter usage means the CPU uses less power and doesn't run as hot and will lead to higher Turbo clock speeds than if you load the CPU up heavily on both cores.

The i5-3339y for example has a base clock speed of 1.40 GHz. You can peg the CPU usage at 100% on both cores for hours and as long as the tablet maker put in the minimum cooling recommended by Intel, its clock speed will be no lower than 1.40 GHz. It may get as high as 1.80 GHz (maximum dual-core Turbo speed) but it will always be between 1.40 and 1.80 GHz. A single-core load may run as high as 2.00 GHz, so in real life you'll see single-core loads between that same 1.40 GHz base and 2.00 GHz.

QUESTION: When does the intel HD 4000 use the turbo boost? (350 Mhz base, 850 Mhz turbo.)
Is it like when only one core is used, the CPU work at games @ 2.0 Ghz & 850 Mhz, or is turbo boost only for either CPU or GPU? At which clock speed would the GPU run when there are 2 cores boosted? I ask cause if the turbo boost is only for either - or, then it makes sense to get the 3339y since 350 Mhz base clock is 75% more that the 200 Mhz of the i5-4200y.

The GPU can use Turbo Boost similarly to the CPU. It takes into account both CPU and GPU usge and overall processor temperature and power usage. Generally you'll see higher GPU speeds in a heavily GPU-bound sitation where the CPU isn't doing a whole lot but the GPU is getting hammered. (Essentially this will be any game you play on the unit as your CPU although slow is relatively much faster than the IGP GPU.) It's hard to say exactly what speeds either would run in a specific situation as it all depends on exactly how much the CPU and GPU are being used and the temperature of the system.

2. Overall, consider the both CPU’s with their GPU’s, which would be faster (even if little) in games? (I know I ask the same question, I mean considering the GPU’s and their differences)

I wanted to add, that I got a decent Desktop PC, with discrete card and quad CPU, and my GF has a Asus K56CB with a discrete 128bit GT 740M! So the HP split X2 is just for the go, with light games like X3 reunion and MW2, Dead Space 3....

Thank you for your advice, and for your time, again.

The Haswell part (i5-4200y) has the potential to have a somewhat faster GPU due to having more execution units. Haswell also has a little better power management than Ivy Bridge. The CPU clock speeds are within 100 MHz of each other and give about the same performance per clock so you'll not notice any difference in the CPU side. I'd probably go with the i5-4200y.

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