Barefoot 3 Controller




Barefoot 3 Block Diagram





The Guts







Test Setup And Benchmarks





Test Hardware
Processor
Intel Core i5-2400 (Sandy Bridge), 32 nm, 3.1 GHz, LGA 1155, 6 MB Shared L3, Turbo Boost Enabled
Motherboard
Gigabyte G1.Sniper M3
Memory
Kingston Hyper-X 8 GB (2 x 4 GB) DDR3-1333 @ DDR3-1333, 1.5 V
System Drive 
OCZ Vertex 3 240 GB SATA 6Gb/s
Tested DrivesIntel SSD 320 300 GB SATA 3Gb/s, Firmware: 1.92

Intel SSD 320 80 GB SATA 3Gb/s, Firmware: 1.92

Intel SSD 330 180 GB SATA 6Gb/s, Firmware: 300i

Intel SSD 330 120 GB SATA 6Gb/s, Firmware: 300i

Samsung 830 256 GB SATA 6Gb/s, Firmware: CXMO

Samsung 830 64 GB SATA 6Gb/s, Firmware: CXMO

Crucial m4 256 GB SATA 6Gb/s Firmware: 0309

Crucial m4 64 GB SATA 6Gb/s Firmware: 0009

OCZ Vertex 3 240 GB SATA 6Gb/s, Firmware: 2.15

OCZ Vertex 3 120 GB SATA 6Gb/s, Firmware: 2.22

OCZ Vertex 3 60 GB SATA 6Gb/s, Firmware: 2.15

OCZ Agility 3 240 GB SATA 6Gb/s, Firmware: 2.22

OCZ Agility 3 120 GB SATA 6Gb/s, Firmware: 2.22

OCZ Agility 3 60 GB SATA 6Gb/s, Firmware: 2.22

OCZ Vertex 4 256 GB SATA 6Gb/s, Firmware: 1.5

OCZ Agility 4 256 GB SATA 6Gb/s, Firmware: 1.5

OCZ Agility 4 128 GB SATA 6Gb/s, Firmware: 1.5

OCZ Vertex 4 64 GB SATA 6Gb/s, Firmware: 1.5

Samsung 840 Pro 512 GB SATA 6Gb/s, Firmware: DMX02B0Q

Corsair Neutron GTX 240 GB SATA 6Gb/s, Firmware: M206

OCZ Vector 256 GB SATA 6Gb/s, Firmware: 1.02
Graphics
Palit GeForce GTX 460 1 GB
Power Supply
Seasonic 760 W, 80 PLUS Gold
System Software and Drivers
Operating SystemWindows 7 x64 Ultimate
DirectX 
DirectX 11
DriverGraphics: Nvidia 270.61 
RST: 10.6.0.1002
Virtu: 1.1.101
Benchmarks
Tom's Hardware Storage Bench v1.0
Trace-Based
Iometer 1.1.0
# Workers = 1, 4 KB Random: LBA=8 GB, varying QDs, 128 KB Sequential, 8 GB LBA Precondition
PCMark 7
Storage Suite





4 KB Random Performance








128 KB Sequential Performance










Maintaining Performance Over Time: The Vector Looks Resilient








Vector


840 Pro





Tom's Hardware Storage Bench And PCMark 7












Real-World Read And Write Tests

















Power Consumption: Idle And PCMark 7




































































































































Measuring The 256 GB Vector's Write Endurance



IMFT's 25 nm NAND




Sequential Workload, Queue Depth=1, 2 MB

Intel SSD 320 
OCZ Vector
Samsung 840 Pro
NAND Type
Intel 25 nm MLC
Intel 25 nm MLCSamsung 21 nm MLC
RAW NAND Capacity
320 GB
256 GB
512 GB
IDEMA Capacity (User-Accessible)
300 GB
256 GB
512 GB
Overprovisioning
7%
0%
0%
P/E Cycles Observed (IDEMA)
5460
2965
2512
P/E Cycles Observed (Raw)
51192965
2512
Host Writes per 1% of MWI
16.38 TB
7.59 TB
12.86 TB








Impact of Random Accesses On Write Endurance
Workload Ratio: 35% 128 KB Sequential, 65% 4 KB Random
128 KB Sequential: 66% Reads, 34% Writes
4 KB Random: 66% Reads, 34% Writes
Full Span, QD=1, ~3 Hours
Write Amplification
Intel SSD 520, Incompressible Data
2.9x
Intel SSD 520, Compressible Data
0.17x
OCZ Vector
2.8x







OCZ's Barefoot 3 Paves The Way For Great Performance












비용 내역
MSRP
기가바이트 당 가격
보증
삼성 840 프로 64기가바이트
백달러
  ＄ 1.56
오년
삼성 840 프로 128기가바이트
150달러
  ＄ 1.17
오년
삼성 840 프로 2백56기가바이트
2백70달러
  ＄ 1.05
오년
삼성 840 프로 5백12기가바이트
6백달러
  ＄ 1.17
오년
OCZ 벡터 1백28기가바이트150달러
  ＄ 1.17오년
OCZ 벡터 256기가바이트2백70달러
  ＄ 1.05오년
OCZ 벡터 512기가바이트560달러
  ＄ 1.09
오년












http://www.tomshardware.com/reviews/vector-ssd-review,3358-10.html