Snapdragon 600 vs Snapdragon S4 Pro
- Thread starter fredcorp6
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The S4 Pro and the Snapdragon 600 are basically the same chip. The model number is almost identical (APQ8064 vs APQ8064T; the Plus, Prime, and 800 all have very different model numbers), same fab process at 28 nm, same L0, L1, and L2 caches, same GPU. The difference is higher clock speed (max 1.7 vs max 1.9 GHz), and potentially a faster/bigger memory channel.
By no means does the S4 Pro instantly become antiquated. Between it and the 600, they're more similar than they are different. The 800 is a different story...
I didn't think there was a big difference either between the 2, however the HTC one with the S600 is getting like 12000 on quadrant compared to the 5000 we get?
How do u explain that? I guess it could just be that quadrant isn't really optimised for our phones and is not giving accurate results.
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From anandtech:
[snapdragon 600] "This is quad core Krait 300 (as opposed to 200 in MSM8960 or APQ8064) which brings a 15 percent increase in IPC as well as higher clocks (from 1.5 to 1.7 GHz), for about 20–30 percent higher overall CPU performance"
20 - 30% So significant but not huge.
I read on snapdragon s4 pro and compare it with spec of snapdragon 600 "the only" difference i got is memory technology, s4pro uses 533MHz LPDDR2 and 600 uses LPDDR3
Edit: our phone not made for benchmark, i read somewhere on google+ someone wrote about it.
Btw nexus is always behind in terms of benchmarking, but if you compare the smoothness even galaxy nexus is still so smooth.
Here is the link https://plus.google.com/u/0/101093310520661581786/posts/Q1yVmqtubG9 its exynos4 saga by one of exynos cm maintainer, but he give a reason why our benchmark not as good as optimus G.
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Why do people care so much about benchmark scores? Does it really matter? The only test that should matter is your eyeball.
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Sent from my Nexus 4 using xda premium
Well because sometimes its a good way of comparing the performance of 2 phones - unfortunately not the case with a nexus I've just learned. Eyeball is very subjective, benchmarks are not (well they shouldn't be!).
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lol @ benchmarks please welcome to technology soon as you bought the phone it was considered OLD !
But it is great to have both real smooth and high score benchmark 
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davwman
Senior Member
Never cared about benchmarks, Even with the PCs I build. I over clock my pcs as much as possible for REAL WORLD usage and as long as they allow me to do everything I want and more and visually everything looks and feels fine and is stable, I'm good to go. Same applies with these phones. The nexus has top of the line internals and stock android allows this phone to be the way it was meant to. Now I have flashed asylum which is awesome, and I have used just about every kernel. I do notice differences in kernels “cough, matrix is the best, cough", but the differences are “seat of the pants" which is a curse in my opinion. Benchmarking stresses components, and at the price of these things why take a chance of shortening its life.
Sent from my Nexus 4
Sent from my Nexus 4
But it is great to have both real smooth and high score benchmark
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benchmarks = just numbers if your phone feels right looks right this is all you need
FatalityBoyZahy
Senior Member
My G2x used to get pretty high benchmarks... I hated that phone.
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Benchmarks do tell a part of the story. You can't say that a phone that scores barely 1000 on benchmarks is as fast as a phone that scores 5000. The numbers might fluctuate a little but you get the idea. Nexus4 scores pretty good on optimised benchmarks like antutu but doesn't score good on benchmark apps that haven't been updated for two years like quadrant.
Sent from my HTC One S using Tapatalk 2
Sent from my HTC One S using Tapatalk 2
Yeah its my understanding that quadrant is also really easy to spoof
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![[hfm]](/data/avatars/s/1975/1975325.jpg?1600603125){kind=avatar}
The number I heard thrown around was 40% faster on paper, or theoretically. Real world applications that may translate to less but still somewhat significant depending on your use case.
The kicker is it seems to still be the Adreno 320, is that higher clocked than the S4 Pro? If not it's pushing more pixels in the HTC One.
The kicker is it seems to still be the Adreno 320, is that higher clocked than the S4 Pro? If not it's pushing more pixels in the HTC One.
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The S4 Pro and the Snapdragon 600 are basically the same chip. The model number is almost identical (APQ8064 vs APQ8064T; the Plus, Prime, and 800 all have very different model numbers), same fab process at 28 nm, same L0, L1, and L2 caches, same GPU. The difference is higher clock speed (max 1.7 vs max 1.9 GHz), and potentially a faster/bigger memory channel.
By no means does the S4 Pro instantly become antiquated. Between it and the 600, they're more similar than they are different. The 800 is a different story...10
S4 Pro has two components, the CPU and GPU. The CPU is identical architecturally to the dual-core S4 with the obvious addition of two additional cores. S4 Pro was the launch SoC for Adreno 320. So it's markedly improved over S4 GPU wise but not as much so on the CPU side. This is what Anandtech said about S4 Pro when it was introduced. S4 Pro is "v2" and the reference he makes to "v3" is S-600. And the 10-15% performance boost assumes identical clock speeds. The 40% improvement in Qualcomm's PR is based on that plus S-600's higher clock speed(s).
At present, this is the same Krait CPU as what we've seen in MSM8960 in phones like the USA versions of the Galaxy S 3 and HTC One X. Later on, Krait v3 will emerge with higher IPC and shorter critical paths (and clocks up to 1.7 or 2 GHz) and a resulting 10-15% boost in performance. For now however we're looking at 1.5 GHz APQ8064 with a Krait v2 inside and Qualcomm's newest scalar GPU architecture with Adreno 320.Krait 300 is the architecture used in S-600. Here are the benefits from Anandtech. They aren't trivial and improved battery life is one of the advantages. Qualcomm's also said Adreno 320 has been "speed enhanced" in the S-600 but hasn't provided any details. It's most likely been enhanced through additional memory bandwidth.
In usual Qualcomm fashion, we're missing good depth on exactly what these new revisions deliver. This is one area where Qualcomm really needs to emulate Intel: we know more about Haswell than we do about the original Krait.
That being said, here's what we do know. Krait 300 is still built on TSMC's 28nm LP process, just like the original Krait. The pipeline remains unchanged, but Qualcomm is able to squeeze out higher clocks out of the core. It's unclear whether we're simply talking about voltage scaling or a combination of that and improvements to timing, yields and layout. Whereas the current Krait core tops out at around 1.5GHz, Krait 300 will run at up to 1.9GHz.
Another big addition to the architecture is Krait 300 now features a hardware data prefetcher that preemptively grabs data out of main memory and brings it into L2 cache. The original Krait core had no L2 prefetchers.
Single threaded IPC improvements are the name of the game with Krait 300 and like all good evolutions to microprocessor architectures, the new Krait improves branch prediction accuracy. Since there's no increase to pipeline depth, improved branch prediction directly results in improved IPC (and better power efficiency).
Both Qualcomm and ARM have been very vague about what types of instructions can be executed out of order, but Krait 300 can execute more instructions out of their original program order. Building a robust OoOE (Out of Order Execution Engine) is very important to driving higher performance, and being able to reorder more types of instructions directly impacts single threaded performance.
Krait 300 now supports forwarding between pipelines, although it's not clear whether or not the previous architecture lacked any ability to forward data between stages.
Finally Krait 300 improves FP and JavaScript performance. Once again, it's not clear how. I've asked Qualcomm whether there have been any changes to the execution units in Krait 300 to enable these improvements. In general I believe we're looking at around a 15 percent increase in performance at the same clock frequency, for a jump of 20 to 30 pecent overall with the clock increases. This isn't necessarily enough to close the gap between Krait 300 and ARM's Cortex A15, however Krait 300's power profile should be much better. Compared to Atom, the Krait 300 improvements should be enough to at least equal performance if not surpass it, but not necessarily significantly.98
