With no dedicated cache, the G.Skill Titan joins the non-Intel SSDs in being some way off the pace in terms of burst speed, although the significant improvement that's obvious in comparison to the single drive controller equipped G.Skill 128GB SSD is very encouraging. That extra 50MB/s of burst hasn't come from something as simple as a cache chip, but rather is a direct indication of the performance improvements offered by using the Titan's dual drive architecture.
HD Tach
Average Read
Intel X25-M 80GB SSD
Intel X25-E 32GB SSD
G.Skill Titan 256GB SSD
G.Skill 128GB SSD
Patriot Warp V.2 128GB SSD
Seagate 1.5TB Barracuda 7200.11
Samsung SpinPoint F1 1TB
Seagate 1TB 7200.11
Seagate 250GB 7200.10
Western Digital 150GB 10,000RPM Raptor
237.1
230.0
161.5
142.5
140.0
106.5
92.8
91.1
89.6
82.1
0
50
100
150
200
250
MB/s (higher is better)
Speed (MB/s
The average read across the drive is also much improved, and while no where near the doubling of performance, is only 40MB/s off the quoted maximum for the drive and is quite clearly superior to SSDs with a single JMircron drive controller (barring Intel's offerings of course).
HD Tach
Random Access Time
Intel X25-M 80GB SSD
Intel X25-E 32GB SSD
G.Skill Titan 256GB SSD
G.Skill 128GB SSD
Patriot Warp V.2 128GB SSD
Western Digital 150GB 10,000RPM Raptor
Seagate 1TB 7200.11
Samsung Spinpoint F1 1TB
Seagate 1.5TB Barracuda 7200.11
Seagate 250GB 7200.10
0.1
0.1
0.2
0.2
0.2
7.8
12.5
13.5
15.0
15.1
0
3
5.5
8
10.5
13
15.5
m/s - less is better
Time (milliseconds)
The Titan's response time matches G.Skill's single drive controller equipped 128GB drive, an understandable result as the use of two 128GB drives working as one, while theoretically improving read and write speeds, shouldn't have any effect on a drives response times.