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q6600 is old now but didnt know it would be that much out of performance to modern chips...
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Q6600 vs 3570k @ 3.5 for Crossfire
- Thread starter the_director
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nice comparison OP. Do you have a single 5850 comparison at 3.5ghz?
Soldato
Sure, out of interest I have the results for my 4870 512mb as well:
ATI 4870 512mb
Average Framerate: 11.91
Max. Framerate: 26.90
Min. Framerate: 4.11
ATI 5850 Extreme 1gb
Average Framerate: 44.75
Max. Framerate: 73.90
Min. Framerate: 29.18
With this bottleneck I also noticed it was affected by RAM speeds quite significantly as well. I had 4gb OCZ PC2-8500 @ 1066 which was just about the best DDR2 ram going and when I increased CPU clocks and the ratio meant the RAM ran slower I actually lost a few frames.
It is much easier on the new socket being able to overclock the CPU without affecting the RAM speed.
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thanks- good info. Looks like the 5850 was scaling at about 67% AV FPS (45fps single-75 xfire), and 85% Min FPS (29 fps single-50 xfire) on the q6600 set up (if i've worked that out right).
Do you have a benchmark of single 5850 on your new rig @ 3.5 (or stock if its easier- who would downclock it other than for comparison anyway!) to compare? It looks like the gains from the new CPU are way more than just better xfire scaling, as expected I suppose, ut it would be good to work out roughly how much more is gained for xfire users over single cards.
Do you have a benchmark of single 5850 on your new rig @ 3.5 (or stock if its easier- who would downclock it other than for comparison anyway!) to compare? It looks like the gains from the new CPU are way more than just better xfire scaling, as expected I suppose, ut it would be good to work out roughly how much more is gained for xfire users over single cards.
I'll run a bench this evening. Will disable crossfire and downclock CPU - only takes seconds to reduce turbo to 3.5. Would be interesting to see a gain with a single card as I would have assumed the Q6600 with that clock would have driven it flat out.
Soldato
not just to IVY Sandy too
Soldato
soz double post
I'm going from my current setup to a 2500k next week actually so I'll post a few comparisons too
Soldato
^^ Why don't you learn to spell?
Well whatever! but you still definitely need to do something along the lines of retracting your neck.
How's this for spelling?
Taumata­whakatangihanga­koauau­o­tamatea­turi­pukakapiki­maunga­horo­nuku­pokai­whenua­kitanatahu.
I'm going from my current setup to a 2500k next week actually so I'll post a few comparisons too
I would be interested in that because one of the options I considered was trying to pick up a Q9*** series chip. However, for a lot of them even second-hand they were often more expensive than a brand new i5.
Not all of the Q9*** clocked as well as the Q6600 either. The Q9650 / qx9650 were great chips but they go for loads still.
Very interesting results for a single 5850 1gb:
Q6600 @ 3.5
Average Framerate: 44.75
Max. Framerate: 73.90
Min. Framerate: 29.18
i5 3570k @ 3.5
Average Framerate: 60.44
Max. Framerate: 147.36
Min. Framerate: 42.46
So even a heavily overclocked Q6600 was holding back a single 5850. I didn't realise that.
Q6600 @ 3.5
Average Framerate: 44.75
Max. Framerate: 73.90
Min. Framerate: 29.18
i5 3570k @ 3.5
Average Framerate: 60.44
Max. Framerate: 147.36
Min. Framerate: 42.46
So even a heavily overclocked Q6600 was holding back a single 5850. I didn't realise that.
The reason for the huge difference is because Crysis does not multi-thread well. If it used all 4 cores fully it would shift much of the bottleneck onto the GPU. As it is, one to two IB cores (plus the extra cache and memory bandwidth) are much superior to one to two old 775 cores.
Newer games that make better use of multiple threads and which have higher geometry needs will likely be much closer.
It is also not just the CPU that has changed, but the memory and chipset as well.
Newer games that make better use of multiple threads and which have higher geometry needs will likely be much closer.
It is also not just the CPU that has changed, but the memory and chipset as well.
I plan on keeping my Q9550 until Haswell, I think i might notice a slight difference
Yes, I think you will!
Ram speed does make a difference. Moving from DDr2 to DDR3 has been a big leap for me.
Soldato
This is very interesting result. Just by switching to new architecture, you are getting 20Fps extra on average for the same card. Gameplay smoothness will change definitely.
I have mentioned several times before that [email protected] holds back 5850@stock speed. My gpu utilisation was only around 81-84% on average in games like crysis and battlefield3. Overclocking gpu to 900/1200Mhz didn't help much as frame rates only improved mildly.
Btw which game did you use for benchmarking?
Last edited:
Far Cry 2 simply because I used that benchmark with my old PC.
Fascinating evaluation gents...
Surely the motherboard bus speeds will be the primary reason for these discrepancies... after all, doesn't the Q6600 sill use the concept of a northbridge as an external memory controller and PCI express controller?
Surely the motherboard bus speeds will be the primary reason for these discrepancies... after all, doesn't the Q6600 sill use the concept of a northbridge as an external memory controller and PCI express controller?