---CPU (Geekbench 3)
iPhone 5 / 5c
Single-Core Score: 721
Multi-Core Score: 1298

Nexus 4
Single-Core Score: 514
Multi-Core Score: 1544

Galaxy S4
Single-Core Score: 694
Multi-Core Score: 1850

LG G2
Single-Core Score: ???
Multi-Core Score: 2243

iPhone 5s
Single-Core Score: 1411
Multi-Core Score: 2554

Sony Xperia Z Ultra
Single-Core Score: 900
Multi-Core Score: 2657

Sony Xperia Z1
Single-Core Score: 914
Multi-Core Score: 2784


---GPU (GLBenchmark)
iPhone 5s ----------- 36.7 fps
Xperia Z1 ------------ 24.1 fps
LG G2 ---------------- 23.0 fps
Xperia Z Ultra ------ 21.3 fps
Nexus 4 ------------- 20.7 fps
iPhone 5 ------------ 13.6 fps
Lumia 820 ---------- 8.4 fps
Lumia 1020 --------- 6.1 fps

Galaxy S4, have a lot of versions, goes from 7.1 to 26.2 fps (Most of then get 15.5 fps or a lot lower)

---RAM (speed)
iPhone 5s ------1333 MHz (LPDDR3)
iPhone 5 / 5c ------- 1066 MHz (LPDDR3)
Xperia Z Ultra & Z1 - 933 MHz (LPDDR3)
LG G2 ---------- 933 MHz (LPDDR3)
Galaxy S4 ------ 533 to 933 MHz (LPDDR3)
Nexus 4 -------- 553 MHz (LPDDR2)
Lumia 1020 ---- 500 MHz (LPDDR2)
Lumia 820 ------ 500 MHz (LPDDR2)