Samsung Galaxy Note 3 Snapdragon800 vs Exynos Octa Core

Samsung galaxy note 3 

Samsung was among the first to discover the demand for very large smartphones and quickly addressed that market with its Galaxy Note lineup. The smartphone Notes combine a large display (greater than 5-inches) with an active digitizer (S Pen). Last year Samsung expanded the Note family to include 8 and 10-inch tablets as well as smartphones
. Blurring lines even further are the cellular variants of Galaxy Note tablets, some of which can function as full fledged smartphones in that they can make and receive phonecalls. Earlier today Samsung announced the third generation of its successful Galaxy Note smartphone device, the aptly named Galaxy Note 3.

The Note 3 continues Samsung's recent habit of making its devices thinner and lighter while increasing screen size. The Note 3 increases its screen size by 0.18" diagonally compared to the Note 2 (the 5.7-inch display actually measures 144.3mm or 5.68"). Despite the larger display, nearly all dimensions of the Note 3 shrink compared to its predecessor. The Note 3 is slightly taller (+0.1mm) but is less than a millimeter narrower and nearly a full millimeter thinner. The Note 3 also drops in weight by 12 grams. The result is an even bigger display in a smaller, more usable device.

Internally the Galaxy Note 3 becomes a far more modern platform. LTE versions of the Galaxy Note 3 will feature a 2.3GHz Qualcomm Snapdragon 800 SoC, while 3G versions will use Samsung's updated Exynos 5 Octa (5420). The Exynos 5420 features four ARM Cortex A15s running at up to 1.9GHz and four Cortex A7s running at up to 1.3GHz. The updated design should hopefully feature a fully cache coherent interface between both processor islands, something that wasn't functional in the first Exynos 5 Octa SoC.The Galaxy Note 3 ships with Android 4.3 and KNOX. Devices will be available starting on September 25th in 140 countries around the world. Availability on US carriers (AT&T, Sprint, T-Mobile, Verizon & US Cellular) will come later this year.

Exynos 5420 VS Snapdragon 800

1.The sweet thing about the Exynos 5420 is that it uses a Mali T628 MP6 instead of the PowerVR SGX544MP3 like the 5410 used. Also sound quality should be better on the Exynos variant because it should be using a wolfston DAC. Since the Exynos one does not have LTE.

2.,the octa have an a15 architecture which is faster than the snapdragon's krait 400.

3.S800 is better in graphics? Nope. The same. In benchmark, 3DMark for example, high VGA memory is used to store texture. In S800, 512MB is configurated to VGA. And in Exynos 5420, it just 320MB. (Some ram is used in LTE/HSPA baseband, touchscreen,...). Result is S800 is better in offscreen benchmark due to a lot texture is stored in ram. But in on-screen or free ram, Exynos 5420 are much better. After 3 hours of use, ram used is bumped up to 2,2-2,3GB in Exynos 5420 but you wont see any lag because free ram is 400MB.

4.1)exynos has power gating.. qualcomm not

4.2) exynos doesen't use hotplug logic.. qualcomm yes
4.3) linux works better withou the hotplug logic since all cores are avaible, so, better multithreading
4.4) better multithreading means, more multitasking with less frequency, so, less power usage
4.5) cortexA7 has the best efficiency ever, so, as a video example, when playing angry birds, only 4 A7 cores are turned on.. the same is compile by another arch witch has less efficiency, so, more power usage

simply, s800 is in the OLD logic.. exynos big.little is in the new

 try to run a stress test, you'll see the s800 will decrease frequency from 2.3 to 1.3ghz with a 65°C of temperature, since, it's TOO hot and kernel remodulate the frequency

nice cpu witch CAN'T run at maxperformance for more than some seconds..

btw.. cortexA15 arch has a better "math" computate.. traduct, the engine is better than krait 400