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Sapphire Radeon HD 7790 1GB - Overclocking

Sapphire Radeon HD 7790 1GB - Overclocking

Although Sapphire has already applied its own overclocks to the Radeon HD 7790 1GB GPU, we naturally wanted to see just how much it could really do. We used AMD's own OverDrive software for the task, and eventually settled on a core frequency of 1,200Mhz. This is the maximum that the software permits, and represents an overclock of a whopping 20 percent from stock speeds. Sadly, we couldn't push the memory to any meaningful frequency above Sapphire's 1.6GHz (6.4GHz effective) without the card becoming unstable. This is still an overclock of just under 7 percent from stock settings, however. With the overclock applied, we re-ran the Battlefield 3 and Crysis 3 1080p tests as well as the Unigine benchmark.

Overclocking - Battlefield 3

1,920 x 1,080, 4xAA 16x AF, ultra detail settings, DirectX 11

  • AMD Radeon HD 7850 2GB
  • Spphire Radeon HD 7790 1GB (OC)
  • Sapphire Radeon HD 7790 1GB
  • AMD Radeon HD 7790 1GB
  • Nvidia GeForce GTX 650 Ti 1GB
  • AMD Radeon HD 7770 1GB
    • 37
    • 47
    • 35
    • 42
    • 33
    • 40
    • 31
    • 38
    • 30
    • 36
    • 24
    • 29
0
10
20
30
40
50
Frames Per Second
  • Minimum
  • Average

Overclocking - Crysis 3

1,920 x 1,080, 0xAA, Very High Settings, DirectX 11

  • AMD Radeon HD 7850 2GB
  • Nvidia GeForce GTX 650 Ti 1GB
  • Spphire Radeon HD 7790 1GB (OC)
  • Sapphire Radeon HD 7790 1GB
  • AMD Radeon HD 7790 1GB
  • AMD Radeon HD 7770 1GB
    • 23
    • 28
    • 19
    • 22
    • 18
    • 23
    • 18
    • 22
    • 18
    • 21
    • 14
    • 17
0
5
10
15
20
25
30
Frames Per Second
  • Minimum
  • Average

Overclocking - Unigine Heaven 3.0 Benchmark

2,560 x 1,600, 4xAA 16xAF

  • AMD Radeon HD 7850 2GB
  • Sapphire Radeon HD 7790 1GB (OC)
  • Sapphire Radeon HD 7790 1GB
  • AMD Radeon HD 7790 1GB
  • Nvidia GeForce GTX 650 Ti 1GB
  • AMD Radeon HD 7770 1GB
    • 671
    • 577
    • 544
    • 515
    • 455
    • 412
0
100
200
300
400
500
600
700
Score
  • Score

Read our performance analysis on the next page.