AMD 770X Motherboard Duel

Written by Harry Butler

July 2, 2008 | 07:53

Tags: #am2 #motherboard

Companies: #amd #sapphire

Lavalys Everest Memory Performance

Website: Lavalys

Everest Memory Performance Test

  • Abit AX78
  • Sapphire AM2RX780
    • 7608
    • 4567
    • 7614
    • 7746
    • 4517
    • 7682
0
1000
2000
3000
4000
5000
6000
7000
8000
MB/s (higher is better)
  • Load
  • Idle
  • Copy

Everest Memory Latency Test

  • Abit AX78
  • Sapphire AM2RX780
  • 62.5
  • 55.4
0
10
20
30
40
50
60
Nanoseconds (lower is better)

The Sapphire board holds the slightest of advantages over the Abit in the Everest memory performance test, but is then convincingly bested by 7ns in the memory latency test by the Sapphire, when both are set to identical 5-5-5-15-2T memory timings at 1,066MHz DDR2.

SiSoftware Sandra Lite XII.2008.SP2c (14.24)

Website: Sisoftware

Sisoft Sandra Unbuffered Memory Test

  • Abit AX78
  • Sapphire AM2RX780
  • 8552.0
  • 8494.0
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
MB/s (higher is better)

Sisoft Sandra Random Memory Latency Test

  • Abit AX78
  • Sapphire AM2RX780
  • 110
  • 88
0
25
50
75
100
125
Nanoseconds (lower is better)

And in the Sisoft Sandra memory tests, we again see the Abit board lead, with the slightest of margins in the unbuffered memory test. However the Abit drops a significant 22ns in the memory latency test to the Sapphire.

SATA Performance

Website: HD Tach 3.0
We used a Western Digital RaptorX 150GB and HDTach 3.0.1.0, with the 8MB Zone Test to record the average read performance.

SATA Performance

HDTach 3.0.1.0, 8MB Zone Test, Average Read

  • Abit AX78
  • Sapphire AM2RX780
  • 82.0
  • 82.0
0
10
20
30
40
50
60
70
80
90
MB/s (higher is better)

Both boards performed perfectly, achieving the maximum possible score of 82MB/s over SATA with the RaptorX hard drive. Neither board features eSATA or adapters explicitly, however the internal ports can be converted to eSATA because both support ACHI mode in the BIOS.

USB 2.0 Performance

Website: HD Tach 3.0
We used a Western Digital RaptorX 150GB connected to a USB to SATA adapter and HDTach 3.0.1.0, with the 8MB Zone Test to record the average read performance.

USB 2.0 Performance

HDTach 3.0.1.0, 8MB Zone Test, Average Read

  • Abit AX78
  • Sapphire AM2RX780
  • 25.0
  • 23.4
0
5
10
15
20
25
MB/s (higher is better)

USB performance is pretty abysmal for both boards, considering that on an Intel ICH with USB 2.0 you'll easily achieve 30-35MB/s USB transfer speeds. The Abit is slightly ahead, but in this instance both boards are victims of the poor AMD SB600 south bridge.
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