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Intel Core i7-875k and i5-655k processor review

When I was in charge of DriverHeaven I wrote a scripted benchmark which was not only used to help users ascertain system specific performance levels but was useful in reviews to accurately measure performance in key areas. Leading tech sites such as Madshrimps, Hardware Canucks, Benchmark Reviews and Hardocp used my benchmark in their reviews also.

This version of the script has been thoroughly tested on Adobe Photoshop CS5 and CS4 and is compatible with Photoshop 7. It is important to document however that different versions of Photoshop give different end results. Adobe have been fine tuning the program over the years and enhancing specific filters and algorithms for better performance (some filters were rewritten during the CS2 time period). This means ultimately that comparing times with users running other versions of Photoshop is not going to give consistent results.

All results were gained from Adobe Photoshop CS5 64bit exe on Windows 7 64 bit ultimate.

KitGuru PS Bench 1(4)
Core i7 920 (4ghz)
Core i7 875k @ 4.8ghz
Core i5 655k @ 4.8ghz
1. Texturiser (1)
1.8
1.6
1.6
2. CMYK
1.7
1.5
1.5
3. RGB
1.6
1.4
1.4
4. Ink outlines
29.9
27.5
27.7
5. Dust & Stratches
2.8
2.6
2.7
6. Watercolor
26.7
24.2
24.4
7. Texturiser (2)
1.8
1.7
1.7
8. Stained Glass
23.3
21.7
21.7
9. Mosiac Tiles
13.5
12.6
12.5
10. Extrude
151.9
146.5
153.2
11. Rough Pastels
12.2
11.1
11.2
12. Smart Blur
95.6
92.5
96.2
13. Underpainting
35.4
33.1
33.2
14. Mosiac Tiles
13.7
12.9
13.2
15. Spherize
2.6
2.5
2.6
16. Palette Knife
22.7
21.5
21.7
17. Sponge
40.2
38.4
40.5
18. Smudge Stick
12.4
12.1
12.2
Total:
486.9
465.4
479.2

The results show how horribly inefficient Adobe Photoshop is with multiple cores, still favouring clock speed over multithreaded performance. We had hoped with CS5 they would finally have rectified this situation but sadly not. The 875K at 4.8ghz has produced the highest ever score in our benchmark suite, by a considerable margin.

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