 | |
| General information | |
|---|---|
| Launched | In production late 2011,[1] to market late 2012[2] |
| Designed by | ARM Holdings |
| Performance | |
| Max.CPUclock rate | 1.0 GHz to 2.5 GHz |
| Cache | |
| L1cache | 64 KB (32 KB I-cache, 32 KB D-cache)per core |
| L2 cache | Up to 4 MB[3]per cluster |
| L3 cache | none |
| Architecture and classification | |
| Technology node | 32 nm/28 nm initially[4] to22 nm roadmap[4] |
| Instruction set | ARMv7-A |
| Physical specifications | |
| Cores |
|
TheARM Cortex-A15 MPCore is a 32-bit processor core licensed byARM Holdings implementing theARMv7-A architecture. It is a multicore processor without-of-ordersuperscalar pipeline running at up to 2.5 GHz.[6]
ARM has claimed that the Cortex-A15 core is 40 percent more powerful than theCortex-A9 core with the same number of cores at the same speed.[7] The first A15 designs came out in the autumn of 2011, but products based on the chip did not reach the market until 2012.[1]
Key features of the Cortex-A15 core are:
First implementation came from Samsung in 2012 with the Exynos 5 Dual, which shipped in October 2012 with the SamsungChromebook Series 3 (ARM version), followed in November by theGoogle Nexus 10.
Press announcements of current implementations:
Other licensees, such asLG,[22][23] are expected to produce an A15 based design at some point.
| Model Number | Semiconductor technology | CPU | GPU | Memory interface | Wireless radio technologies | Availability | Utilizing devices |
|---|---|---|---|---|---|---|---|
| HiSilicon K3V3 | 28 nm HPL | big.LITTLE architecture using 1.8 GHz dual-core ARM Cortex-A15 + dual-coreARM Cortex-A7 | Mali-T628 | H2 2014 | |||
| NvidiaTegra 4 T40 | 28 nm HPL | 1.9 GHzquad-core ARM Cortex-A15[24] + 1 low power core | Nvidia GeForce @ 72 core, 672 MHz, 96.8 GFLOPS = 48 PS + 24 VU × 0.672 × 2 (96.8 GFLOPS)[25](supportDirectX 11+,OpenGL 4.X, andPhysX) | 32-bit dual-channel DDR3L or LPDDR3 up to 933 MHz (1866 MT/s data rate)[24] | Category 3 (100 Mbit/s) LTE | Q2 2013 | Nvidia ShieldTegra Note 7 |
| NvidiaTegra 4 AP40 | 28 nm HPL | 1.2-1.8 GHz quad-core + low power core | Nvidia GPU 60[24] cores (supportDirectX 11+,OpenGL 4.X, andPhysX) | 32-bitdual-channel 800 MHzLPDDR3 | Category 3 (100 Mbit/s) LTE | Q3 2013 | |
| Nvidia Tegra K1 | 28 nm HPm | 2.3 GHz quad-core + battery saver core | Kepler SMX (192CUDA cores, 8TMUs, 4ROPs) | 32-bit dual-channel DDR3L, LPDDR3 or LPDDR2 | Q2 2014 | Jetson TK1 development board,[26]Lenovo ThinkVision 28, Xiaomi MiPad,Shield Tablet | |
| Texas Instruments OMAP5430 | 28 nm | 1.7 GHz dual-core | PowerVR SGX544MP2 @ 532 MHz + dedicated2D graphics accelerator | 32-bitdual-channel 532 MHzLPDDR2 | Q2 2013 | phyCore-OMAP5430[27] | |
| Texas Instruments OMAP5432 | 28 nm | 1.5 GHz dual-core | PowerVR SGX544MP2 @ 532 MHz + dedicated2D graphics accelerator | 32-bitdual-channel 532 MHzDDR3 | Q2 2013 | DragonBox Pyra, SVTronics EVM,[28] Compulab SBC-T54[29] | |
| Texas Instruments AM57x | 28 nm | 1.5 GHz single or dual-core | PowerVR SGX544MP2 @ 532 MHz + dedicated2D graphics accelerator | 32-bitdual-channel 532 MHzDDR3 | Q4 2015 | BeagleBoard-X15,[30] BeagleBone AI,[31] Elesar Titanium[32] | |
| Texas Instruments 66AK2x | 28 nm | 1.5 GHz single, dual, and quad core devices | 1-8 C66x DSP cores, radio acceleration, and many other application specific accelerators | Q4 2015 | |||
| Exynos 5 Dual[33] (previously Exynos 5250)[34] | 32 nm HKMG | 1.7 GHz dual-core ARM Cortex-A15 | ARM Mali-T604[35] (quad-core) @ 533 MHz; 68.224 GFLOPS[citation needed] | 32-bit dual-channel 800 MHz LPDDR3/DDR3 (12.8 GB/sec) or 533 MHz LPDDR2 (8.5 GB/sec) | Q3 2012[34] | SamsungChromebook XE303C12,[36]Google Nexus 10,Arndale Board,[37] Huins ACHRO 5250 Exynos,[38] Freelander PD800 HD,[39] Voyo A15, HP Chromebook 11, Samsung Homesync | |
| Exynos 5 Octa[40][41][42] (internally Exynos 5410) | 28 nm HKMG | 1.6 GHz[43] quad-core ARM Cortex-A15 and 1.2 GHz quad-coreARM Cortex-A7 (ARMbig.LITTLE)[44] | IT PowerVR SGX544MP3 (tri-core) @ 480 MHz 49 GFLOPS (532 MHz in some full-screen apps)[45] | 32-bit dual-channel 800 MHz LPDDR3 (12.8 GB/sec) | Q2 2013 | Samsung Galaxy S4 I9500,[46][47] Hardkernel ODROID-XU,[48]Meizu MX3, ZTE Grand S II TD[49]ODROID-XU | |
| Exynos 5 Octa[50] (internally Exynos 5420) | 28 nm HKMG | 1.8-1.9 GHz quad-core ARM Cortex-A15 and 1.3 GHz quad-core ARM Cortex-A7 (ARM big.LITTLE withGTS) | ARM Mali-T628 MP6 @ 533 MHz; 109 GFLOPS | 32-bit dual-channel 933 MHz LPDDR3e (14.9 GB/sec) | Q3 2013 | SamsungChromebook 2 11.6",[51]Samsung Galaxy Note 3,[52]Samsung Galaxy Note 10.1 (2014 Edition),Samsung Galaxy Note Pro 12.2, Samsung Galaxy Tab Pro (12.2 &10.1), Arndale Octa Board, Galaxy S5 SM-G900H[53] | |
| Exynos 5 Octa[54] (internally Exynos 5422) | 28 nm HKMG | 2.1 GHz quad-core ARM Cortex-A15 and 1.5 GHz quad-core ARM Cortex-A7 (ARM big.LITTLE with GTS) | ARM Mali-T628 MP6 @ 695 MHz (142 Gflops) | 32-bit dual-channel 933 MHz LPDDR3/DDR3 (14.9 GB/sec) | Q2 2014 | Galaxy S5 SM-G900,Hardkernel ODROID-XU3 & ODROID-XU4[55] | |
| Exynos 5 Octa[56] (internally Exynos 5800) | 28 nm HKMG | 2.1 GHz quad-core ARM Cortex-A15 and 1.3 GHz quad-core ARM Cortex-A7 (ARM big.LITTLE with GTS) | ARM Mali-T628 MP6 @ 695 MHz (142 Gflops) | 32-bit dual-channel 933 MHz LPDDR3/DDR3 (14.9 GB/sec) | Q2 2014 | SamsungChromebook 2 13,3"[57] | |
| Exynos 5 Hexa[58] (internally Exynos 5260) | 28 nm HKMG | 1.7 GHz dual-core ARM Cortex-A15 and 1.3 GHz quad-core ARM Cortex-A7 (ARM big.LITTLE with GTS) | ARM Mali-T624 | 32-bit dual-channel 800 MHz LPDDR3 (12.8 GB/sec) | Q2 2014 | Galaxy Note 3 Neo (announced January 31, 2014), Samsung Galaxy K zoom[59] | |
| Allwinner A80 Octa[60] | 28 nm HPm | Quad-core ARM Cortex-A15 and Quad-core ARM Cortex-A7 (ARM big.LITTLE with GTS) | PowerVR G6230 (Rogue) | 32-bit dual-channel DDR3/DDR3L/LPDDR3 or LPDDR2[61] |
