201309210906Qualcomm Snapdragon Krait CPU

參考 Qualcomm 網站的資料 : http://www.qualcomm.eu/uk/snapdragon/processors/800-600-400-200/specs

 


Snapdragon 800

Snapdragon 600

Snapdragon 400

Snapdragon 200
CPU Up to 2.3 GHz Quad Krait 400 CPU Up to 1.9 GHz Quad Krait 300 CPU Up to 1.7 GHz Dual Krait 300 CPU Up to 1.4 GHz Quad Cortex A5 CPU
GPU Adreno 330 GPU Adreno 320 GPU Adreno 305 GPU Adreno 203 GPU
DSP Hexagon, QDSP6V5A, 600MHz Hexagon, QDSP6V4, 500MHz Hexagon, QDSP6V4, 500MHz Up to QDSP6 V5, 384MHz
Video 4k x 2k UHD video capture/playback 1080p HD video 1080p HD video 720p HD Video (30/15 fps)
Modem 3G/4G World/multimode LTE on select processors No modem 3G/4G World/multimode LTE on select processors 3G CDMA/UMTS/GSM on select processors
Camera Up to 21MP, Stereoscopic 3D, Dual ISP Up to 21MP, Stereoscopic 3D Up to 13.5MP, Stereoscopic 3D on select processors Up to 8MP
GPS IZat Gen8B IZat Gen8A IZat Gen8A IZat Gen7A
USB USB 3.0/2.0 USB 2.0 USB 2.0 USB 2.0
Bluetooth BT4.0 Integrated digital core BT4.0 Integrated digital core BT4.0 Integrated digital core BT4.0 Integrated digital core
WiFi 802.11n/ac (2.4/5GHz) Integrated digital core 802.11n/ac (2.4/5GHz) Integrated digital core 802.11n/ac (2.4/5GHz) Integrated digital core 802.11n/ac (2.4/5GHz) Integrated digital core
Process Technology 28nm HPm 28nm LP 28nm LP 45nm LP
Individual Chipsets
  • 8974 (LTE)
  • 8274 (HSPA+)
  • 8674 (CDMA)
  • 8074 (No Modem)
8064T
8064M
  • 8926
  • 8930 (LTE)
  • 8230 (HSPA+)
  • 8630 (CDMA)
  • 8930AB (LTE)
  • 8230AB (HSPA+)
  • 8630AB(CDMA)
  • 8030AB(No Modem)
  • 8226 (UMTS)
  • 8626 (CDMA)
  • 8110
  • 8210
  • 8610
  • 8112
  • 8212
  • 8612
  • 8225Q
  • 8625Q

Krait 是 ARM-Based CPU,參考 Cortex-A15 的架構(ARMv7-A),增強省電的功能。

Krait 與 ARM11, Cortex-A8, Cortex-A9, Cortex-A15 比較表 :

資料來源 :

http://www.anandtech.com/show/4940/qualcomm-new-snapdragon-s4-msm8960-krait-architecture

http://en.wikipedia.org/wiki/Krait_%28CPU%29

http://en.wikipedia.org/wiki/ARM_Cortex-A15_MPCore

http://en.wikipedia.org/wiki/ARM_architecture


ARM11 Cortex-A8 Cortex-A9 Scorpion Krait Cortex-A15
Decode single-
issue
2-wide 2-wide
(MPcore)
2-wide 3-wide
(MPcore)
3-wide
(MPcore)
Pipeline Depth 8
stages
13
stages
8
stages
10
stages
11
stages
15
stages
Out of Order Execution N N Y Partial Y Y
FPU VFP11
(pipelined)
VFPv3
(not-pipelined)
Optional
VFPv3-D16
(pipelined)
VFPv3
(Pipelined)
VFPv3
(Pipelined)
VFPv4
NEON N/A Y
(64-bit wide)
Optional MPE
(64-bit wie)
Y
(128-bit wide)
Y
(128-bit wide)
Y
(128-bit wide)
Process Tech. 90 nm 65/45 nm 40 nm 40 nm 28 nm 28 nm
Clock Speeds 412 MHz 600 Mhz/1 GHz 1.2 GHz 1 GHz 1.5 GHz 2.5 GHz
ARM DMIPS/MHz 1.25 2.0 2.5 2.1 3.3 3.5?(TBD)
MISC Large Physical Address Extensions
 (LPAE)
Large Physical Address Extensions
(LPAE)

 


Krait Krait 200 Krait 300 Krait 400
Performance
(DMIPS/MHz)
3.3 3.1 3.39 3.39

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