In the field of ARM, the latest Cortex-A15 processor has the most outstanding performance. Although only Samsung has launched related products, its good development momentum has opened a good beginning for other mobile processor manufacturers. The Nexus 10 and Samsung Chromebook recently launched both use the Exynos 5250 dual core processor with A15 architecture, and the main frequency is 1.7Ghz. From the performance point of view, the results are gratifying. At present, some foreign developers have installed the Ubuntu 12.04 operating system based on the Linux kernel on Exynos 5, and compared it with NVIDIA Tegra 3, Intel Atom Z530/N270/D525 and Core i3-330M in many aspects.
Test environment: Ubuntu 12.04 operating system (based on Linux kernel)
Comparison of parameters of the tested products:
Samsung Exynos 5250: Cortex-A15 architecture, dual core, 32nm process, main frequency 1.7GHz
NVIDIA Tegra 3： Cortex-A9 architecture, quad core, 40nm process, main frequency 1.4GHz
Intel Atom Z530： X86 architecture, single core dual thread, 65nm process, 1.6GHz main frequency, 512KB L2 cache
Intel Atom N270： X86 architecture, single core dual thread, 45nm process, 1.6GHz main frequency, 512KB L2 cache
Intel Atom D525： X86 architecture, dual core four thread, 45nm process, main frequency 1.8GHz, L2 cache 1MB
Intel Core i3-330M： X86 (Nehalem) architecture, dual core four thread, 32nm process, main frequency 2.13GHz, second level cache 512KB, third level cache 3MB
Specific test platform description:
Before the test, let's introduce today's main character Samsung Exynos 5250: Samsung's Exynos 5250 integrates two ARM A15 CPU cores, with the main frequency of 1.7GHz, and the graphics core Mali-T604.
▲ Cortex-A15 Architecture Diagram
The test comparison results are as follows:
▲ Pybench: The smaller the value, the better. The i3-330M has a clear lead. The Exynos 5250 ranks second, superior to the Atom D525.
▲ Smallpt global illumination rendering: the smaller the value, the better. I3-330M leads, followed by Atom D525， Exynos 5250 ranked third, NVIDIA Tegra 3 ranked last with average performance. Compared with the single core Atom, there are still some gaps.
▲ Prime sieve method, the smaller the better. I3-330M leads, Atom D525 and The gap between Exynos 5250 and N270 and Z530 is small.
▲ Pa Rallel BZIP2 parallel file compression. The smaller the value, the better. I3-330M leads, followed by Exynos 5250， Atom D525 No. 3 The gap between the two is not obvious. NVIDIA Tegra 3 also performed well.
▲ C-Ray multi-threaded test, the smaller the value, the better. I3-330M leads, followed by Exynos 5250， Atom D525 No. 3 The gap between the two is still not obvious. NVIDIA Tegra 3 easily surpasses single core Atom.
▲ Timed PHP compilation test: The smaller the value, the better. I3-330M is the fastest, Exynos 5250 leads with small advantages Atom D525 ranks second.
▲ 7-Zip file compression. The higher the value, the better. Exynos 5250 The Atom D525 is slightly inferior, and the dual core X86 gives play to its advantages.
▲ For H.264 video coding test, the larger the value, the better. The encoding speed of Exynos 5250 reaches 10.62 fps, easily defeating Tegra-3, N270 and Z520. The D525 is slightly better than the Exynos 5250, and the i3 still maintains its leading edge.
▲ The larger the value, the better the SciMark performance benchmark. The i3 easily takes the lead, and the Exynos 5250 is not inferior, ranking second, surpassing the dual core Atom.
▲ i3 leads again, The Exynos 5250 also lags far behind the Atom series. This test mainly focuses on single core performance, so the D525 is not significantly ahead of N270 and Z530.
▲ I3 is still outstanding, Exynos 5250 ranks second, but the gap is large, Exynos 5250 single core computing performance is reflected.
▲ Exynos 5250's speed reached 167.9 Mflops, Intel Atom chips (N270, Z530, D525) lagged far behind, and i3 processors again topped the list at 260.62 Mflops.
▲ GMP bench test: The larger the value, the better. Intel i3 has a clear lead. The Exynos 5250 is slightly stronger than the Atom D525, and Tegra 3 ranks behind the three, but also better than the single core Atom.
▲ FFTE test: the larger the value, the better. The i3 has a clear lead. The Exynos 5250 is stronger than the Atom D525, and the multi-core advantage is significantly stronger than the single core.
▲ Dolfyn test: the smaller the value, the better. I3 optimal, Exynos 5250 leads Atom D525, Tegra 3 performed poorly and was thrown away by the single core Atom 。
▲ LAME MP3 Encoding audio coding test: the smaller the value, the better. I3 ranks first, Exynos 5250 is significantly ahead of Tegra 3 and single core Atom.
▲ PHP bench test: The larger the value, the better. I3 optimal, Exynos 5250 leads Atom D525, Tegra 3 also catches up, better than the single core Atom 。
Summary:
From the overall test results, Samsung Exynos 5250 has surpassed the dual core Atom in many tests, and has obvious advantages over the single core Atom. The performance of A15 is not to be underestimated. Although the Core i3-330M has been leading the way in this test, as it is a notebook processor, power consumption and heating are its bottlenecks, and it is difficult to be applied in mobile products, which is of little significance in comparison. At present, the dual core A15 has achieved very good performance. It is reported that there will be four core A15 processors coming out next. If the power consumption is properly controlled, the performance of mainstream mobile products will be comparable to desktop products. It is conceivable that the desktop market will be further eroded by mobile devices.
