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PCMark 7: SSD Performance Disappointment

Asus' Eee Slate EP121/B121: A Windows 7-Based Tablet PC
By
Specifications
Asus K53E
Asus Eee Slate
PCMark Overall
2419 PCMarks
1508 PCMarks
Lightweight Score
1913 PCMarks
1287 PCMarks
Productivity Score
1461 PCMarks
1100 PCMarks
Video Playback and Transcoding
22.99 FPS
18.58 FPS
Video Playback and Transcoding - Downscaling
17.39241 MB/s
1.23366 MB/s
System Storage - Gaming
3.38 MB/s
10.62 MB/s
Graphics - DX9
15.38 FPS
3.44 FPS
Image Manipulation
9.26 Mpx/s
4.87 Mpx/s
System Storage - Importing Pictures
5.20 MB/s
4.69 MB/s
Web Browsing and Decrypting / Web Browsing
10.46 pages/s
5.44 pages/s
Web Browsing and Decrypting / Data Decrypting
78.87 MB/s
28.77 MB/s
System Storage - Windows Defender
1.08 MB/s
4.20 MB/s
Web Browsing With 3 Tabs
11.68 pages/s
6.13 pages/s
System Storage - Adding Music
1.07 MB/s
1.22 MB/s
System Storage - Starting Applications
2.09 MB/s
12.16 MB/s
Text Editing
9.95 operations/s
0.56 operations/s



It's no surprise to see the K53E win in nearly every benchmark. But the Eee Slate excels in the storage test thanks to its 64 GB SSD. The only aberration is the Importing Pictures metric, where the K53E beats the Eee Slate.

The Eee Slate does poorly in this test because its SSD chronically suffers from poor random write performance. Normally, this is where SSDs utterly trash their magnetic predecessors, but Asus chose the SanDisk SSD P4, which seems to be an exception. No doubt, this is a situation where "my HDD is faster than your SSD."

Perhaps Asus should have chosen a better SSD. Even our older Seagate Momentus 5400.6 beats the SSD P4, with random 4 KB writes as low as 200 IOPS (.77 MB/s), while the current Momentus XT hits 338 IOPS (1.32 MB/s).

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