Anandtech 完整测试结果 谈的东西十分深入
http://www.anandtech.com/show/8554/the-iphone-6-review
iPhone 家族大小比较图
http://images.anandtech.com/doci/8572/DSC_1392_678x452.jpg
iPhone 6 四面图及手腕握持比例
http://images.anandtech.com/doci/8554/DSC_1379_575px.jpg
http://images.anandtech.com/doci/8554/DSC_1378_575px.jpg
http://images.anandtech.com/doci/8554/DSC_1380_575px.jpg
http://images.anandtech.com/doci/8554/DSC_1373_575px.jpg
iPhone 6 plus 四面图及手腕握持比例
http://images.anandtech.com/doci/8572/DSC_1362_575px.jpg
http://images.anandtech.com/doci/8572/DSC_1363_575px.jpg
http://images.anandtech.com/doci/8572/DSC_1364_575px.jpg
http://images.anandtech.com/doci/8572/DSC_1365_575px.jpg
http://images.anandtech.com/doci/8572/DSC_1366_575px.jpg
http://images.anandtech.com/doci/8572/DSC_1359_575px.jpg
A8 SoC
http://images.anandtech.com/doci/8554/APL1011_TMET05_166628_Poly_blog_blocks_575px.png
CPU为加强版Cyclone(飓风)核心 四核GPU
A7 A8 细节比较
Apple A8 vs A7 SoCs
Apple A8 (2014) Apple A7 (2013)
Manufacturing Process TSMC 20nm HKMG Samsung 28nm HKMG
Die Size 89 mm2 102 mm2
Transistor Count ~2B "Over 1B"
CPU 2 x Apple Enhanced Cyclone 2 x Apple Cyclone
ARMv8 64-bit cores ARMv8 64-bit cores
GPU IMG PowerVR GX6450 IMG PowerVR G6430
苹果 SoC 进化史 Apple SoC Evolution
CPU Perf GPU Perf Die Size Transistors Process
A5 ~13x ~20x 122m2 <1B 45nm
A6 ~26x ~34x 97mm2 <1B 32nm
A7 40x 56x 102mm2 >1B 28nm
A8 50x 84x 89mm2 ~2B 20nm
一年进化一次制程 可说是SoC的黄金时期
Geekbench 3 Memory Bandwidth Comparison (1 thread)
Stream Copy Stream Scale Stream Add Stream Triad
Apple A8 1.4GHz 9.08 GB/s 5.37 GB/s 5.76 GB/s 5.78 GB/s
Apple A7 1.3GHz 8.34 GB/s 5.21 GB/s 5.67 GB/s 5.69 GB/s
A8 Advantage 9% 3% 2% 2%
内存频宽 只增加个位数性能
Memory Latency
http://images.anandtech.com/doci/8554/A8_Latency.png
苹果架构比较
Apple Custom CPU Core Comparison
Apple A7 Apple A8
CPU Codename Cyclone "Enhanced Cyclone"
ARM ISA ARMv8-A (32/64-bit) ARMv8-A (32/64-bit)
Issue Width 6 micro-ops 6 micro-ops
Reorder Buffer Size 192 micro-ops 192 micro-ops?
Branch Mispredict Penalty 16 cycles (14 - 19) 16 (14 - 19)?
Integer ALUs 4 4
Load/Store Units 2 2
Addition (FP) Latency 5 cycles 4 cycles
Multiplication (INT) 4 cycles 3 cycles
Latency
Branch Units 2 2
Indirect Branch Units 1 1
FP/NEON ALUs 3 3
L1 Cache 64KB I$ + 64KB D$ 64KB I$ + 64KB D$
L2 Cache 1MB 1MB
L3 Cache 4MB 4MB
加强版Cyclone架构基本上继承Cyclone复杂庞大的架构 变动不大
仅有Addition (FP) Latency及Multiplication (INT) Latency延迟有所改善
苹果宣称CPU效能进化图
http://images.anandtech.com/doci/8554/iPhone-6-processor-performance.png
SPECint2000 - Estimated Scores
A8 A7 % Advantage
164.gzip 842 757 11%
175.vpr 1228 1046 17%
176.gcc 1810 1466 23%
181.mcf 1420 915 55%
186.crafty 2021 1687 19%
197.parser 1129 947 19%
252.eon 1933 1641 17%
253.perlbmk 1666 1349 23%
254.gap 1821 1459 24%
255.vortex 1716 1431 19%
256.bzip2 1234 1034 19%
300.twolf 1633 1473 10%
SPECint2000 最高55% 平均约20%效能增加
Geekbench 3 整数 浮点 性能也为约20%增加
详情请见连结
http://www.anandtech.com/show/8554/the-iphone-6-review/3
GPU架构 四核 PowerVR GX6450
详情比较请见连结
http://www.anandtech.com/show/8554/the-iphone-6-review/4
CPU跑分 和初步测试结果差不多
详情请见连结
http://www.anandtech.com/show/8554/the-iphone-6-review/5
GPU跑分 比初步测试多跑几项跑分
http://www.anandtech.com/show/8554/the-iphone-6-review/6
NAND 储存空间测试
http://images.anandtech.com/graphs/graph8554/68006.png
http://images.anandtech.com/graphs/graph8554/68007.png
http://images.anandtech.com/graphs/graph8554/68004.png
http://images.anandtech.com/graphs/graph8554/68005.png
续航力测试
Web browsing, wifi
http://images.anandtech.com/graphs/graph8554/68010.png
加测 Web browsing, LTE
http://images.anandtech.com/graphs/graph8554/68009.png
GFXBench
http://images.anandtech.com/graphs/graph8554/68012.png
跑GFXBench续航力测试时 GPU画面侦数
http://images.anandtech.com/graphs/graph8554/68013.png
GPU画面侦数不会随时间下降 没有过热限速问题
http://images.anandtech.com/doci/8554/iPhone6_GFXBench_Rundown_575px.PNG
充电时间 1A充电器下 iPhone6+慢上许多
http://www.anandtech.com/show/8554/the-iphone-6-review/7
萤幕
http://images.anandtech.com/graphs/graph8554/67813.png
http://images.anandtech.com/graphs/graph8554/67814.png
http://images.anandtech.com/graphs/graph8554/67815.png
http://images.anandtech.com/graphs/graph8554/67816.png
http://images.anandtech.com/graphs/graph8554/67817.png
http://images.anandtech.com/graphs/graph8554/67819.png
http://images.anandtech.com/graphs/graph8554/67820.png
对焦时间
http://images.anandtech.com/graphs/graph8554/67981.png
拍照时间
http://images.anandtech.com/graphs/graph8554/67982.png
众机型拍摄照片比较
http://www.anandtech.com/show/8554/the-iphone-6-review/9
摄影影片
http://www.anandtech.com/show/8554/the-iphone-6-review/10
音质测试
http://www.anandtech.com/show/8554/the-iphone-6-review/11
完整测试中 有许多十分深入的评论
整整14页的测试 实在无法一一翻译贴过来
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