That would certainly settle it. I had a look at the photos on the Kodawarisan site but you can't read the writing on the chips.
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2600xt?
- Thread starter I'mAMac
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That would certainly settle it. I had a look at the photos on the Kodawarisan site but you can't read the writing on the chips.
You can look at the package yourself and see if you can find anything like that.yes, agreed, you can't "unlock" a physical feature that doesn't exist.
i was just saying that you can, on occasion, get significant increases via a driver/firmware update. again, provided they were on the actual card in the first place. and yes, i'm not that familiar with the 26xx cards.
The problem with that being that those results are on a different system. Assuming that ATI really do make bespoke cards for apple, the benchmarks need to be run on the actual iMacs, or it's all worthless conjecture.
*hopes it's good though*
Stock Clocks Time
Desktop HD2600 Pro
Core: 550 MHz
Memory: 1400 MHz (700 MHz x 2)
Desktop HD2600 XT
Core: 800 MHz
Memory: 2200 MHz (1100 MHz x 2)
Mobility HD2600 XT
Core: 700 MHz
Memory: 1500 MHz (750 MHz x 2)
GeForce 8600M GT
Core: 475 MHz
Shader: 950 MHz (475 Mhz x 2)
Memory: 1400 MHz (700 MHz x 2)
Desktop HD2600 Pro
Core: 550 MHz
Memory: 1400 MHz (700 MHz x 2)
Desktop HD2600 XT
Core: 800 MHz
Memory: 2200 MHz (1100 MHz x 2)
Mobility HD2600 XT
Core: 700 MHz
Memory: 1500 MHz (750 MHz x 2)
GeForce 8600M GT
Core: 475 MHz
Shader: 950 MHz (475 Mhz x 2)
Memory: 1400 MHz (700 MHz x 2)
If it is the ATI Mobility 2600XT then it may not be that bad. According to notebookcheck.net it is the top of the performance class 2 and borderline performance class 1. Just my 2 cents.
If this all checks out then I'll definately be getting the new iMac, all I expected from this new iMac was that it be slightly more powerful than the MBP and it looks like if all this is true then it definately is what I expected, and all I really need from a computer for a good 2 years or more.
1. http://kettya.com/notebook2/gpu_ranking_mark06.htm
2. http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-2600-XT.3770.0.html
Mileage may vary, etc.
Thank me later for having knowing about the first site.
2. http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-2600-XT.3770.0.html
Mileage may vary, etc.
Thank me later for having knowing about the first site.
Yep.
I just spend about 30 minutes reading gamers forums where they spend countless hours debating which is better the mobility 2600 XT and the 8800 GS whatever, and in the end they are neck and neck. And they are both fine for new game and old ones alike. THUS, I am assuming it is BETTE than the 7600GT and THUS making it an improvement. ANd that means I must purchase!!
Seriously though, We aregetting DDR3 memory and I bet steve had them clocked a little higher and tweaked them, wich is totally within the realm of possibilities and we have ended up with a fine graphics card. I am surprised we are not getting more real world stats from new owners.
trout
... but has anybody confirmed that the one in the new iMacs is actually running at that clock speed? It may actually be the XT version, but underclocked to the HD2600 Pro speeds?
Once we know for sure its a 2600XT, I am running to the Apple Store and buying an iMac. If this is not true, I will probably just wait for a revision with a decent graphics card.
PLEASE GOD (STEVE JOBS)!!! MAKE IT A 2600XT!!!
PLEASE GOD (STEVE JOBS)!!! MAKE IT A 2600XT!!!
Then why would it have the Device ID for the Mobility HD2600 XT?
No one has posted anything about the clock speeds, yet. Barefeats will more then likely have the up early next week.
For those who currently have a 7600GT
So it looks like it would be slightly slower on older games but quite a bit faster on newer ones.
http://www.guru3d.com/article/Videocards/326/15/
http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-2600-XT.3770.0.html
Code:
7600GT MobilityHD2600XT
3dmark 03: 13,435 12,240
3dmark 05: 6,031 9,030http://www.guru3d.com/article/Videocards/326/15/
http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-2600-XT.3770.0.html
There is an apple store literally 2 blocks from where I am working right now. I'll walk down there right after work and try to find the clockspeed on the gpus in the "2600 pro" (hopefully XT) model if somebody knows a way I can do this in OS X in the store.
I'm extremely interested in discovering this information, as I'll be buying one soon afterwards if we are right.
-Shepherd
I'm extremely interested in discovering this information, as I'll be buying one soon afterwards if we are right.
-Shepherd
I ran down to the apple store on my lunch break and ran the graphiccelerator program, but got strange results. Maybe a multiplier needs to be added or something, but the numbers it gave me were:
Core Frequency: 59.4 MHz
Memory Frequency: 68.4 MHz
This is clearly not right, so I'm guessing that the program hasn't been updated to handle the new cards, as they weren't listed in the compatible GPU list I found on its website (it only went up to around ATI X1600 i think). Possibly the numbers may need to be multiplied by 10 to give results of 594 MHz core and 684 MHz memory (x2 of course to 1368). I don't remember off the top of my head but I think that puts it closer to the nVidia 8600M GT speedwise and not quite all the way to the 2600XT, but I'm just pulling that 10x multiplier out of my ass.
Strangely it was able to identify the GPU as the ATI Radeon HD 2600, no PRO or XT specified.
Sounds like somebody may need to run a test in bootcamp perhaps using a different OC program or find a different one for OS X. I would stick around longer except I'm on the clock
.
Good luck to you guys still working on it. Maybe somebody can even make sense of the numbers that graphiccelerator gave me.
-Shepherd
Core Frequency: 59.4 MHz
Memory Frequency: 68.4 MHz
This is clearly not right, so I'm guessing that the program hasn't been updated to handle the new cards, as they weren't listed in the compatible GPU list I found on its website (it only went up to around ATI X1600 i think). Possibly the numbers may need to be multiplied by 10 to give results of 594 MHz core and 684 MHz memory (x2 of course to 1368). I don't remember off the top of my head but I think that puts it closer to the nVidia 8600M GT speedwise and not quite all the way to the 2600XT, but I'm just pulling that 10x multiplier out of my ass.
Strangely it was able to identify the GPU as the ATI Radeon HD 2600, no PRO or XT specified.
Sounds like somebody may need to run a test in bootcamp perhaps using a different OC program or find a different one for OS X. I would stick around longer except I'm on the clock
. Good luck to you guys still working on it. Maybe somebody can even make sense of the numbers that graphiccelerator gave me.
-Shepherd
Thank you very much for what information you were able to give us.I ran down to the apple store on my lunch break and ran the graphiccelerator program, but got strange results. Maybe a multiplier needs to be added or something, but the numbers it gave me were:
Core Frequency: 59.4 MHz
Memory Frequency: 68.4 MHz
This is clearly not right, so I'm guessing that the program hasn't been updated to handle the new cards, as they weren't listed in the compatible GPU list I found on its website (it only went up to around ATI X1600 i think). Possibly the numbers may need to be multiplied by 10 to give results of 594 MHz core and 684 MHz memory (x2 of course to 1368). I don't remember off the top of my head but I think that puts it closer to the nVidia 8600M GT speedwise and not quite all the way to the 2600XT, but I'm just pulling that 10x multiplier out of my ass.
Strangely it was able to identify the GPU as the ATI Radeon HD 2600, no PRO or XT specified.
Sounds like somebody may need to run a test in bootcamp perhaps using a different OC program or find a different one for OS X. I would stick around longer except I'm on the clock
Good luck to you guys still working on it. Maybe somebody can even make sense of the numbers that graphiccelerator gave me.
-Shepherd
In the ideal world reading the clockspeeds with an application such as this would give us the correct core and memory frequencies. However as has been pointed out numerous times apple tend to have the clock speeds change on the fly depending on what application is running.
For example with the GPU idle the frequencies may be 400/400, however when running a GPU intensive application the frequencies may jump to 500/500.
http://www.barefeats.com/santarosa.html
Here it shows that when idle the 8600 in the santa rosa macbook pros has a core clock freq of 169 and a memory clock of 100. Therefore the obtained results for the aluminium imacs:
Core Frequency: 59.4 MHz
Memory Frequency: 68.4 MHz
may be correct and the true frequencies will only be shown when a GPU intensive application is used.
For example with the GPU idle the frequencies may be 400/400, however when running a GPU intensive application the frequencies may jump to 500/500.
http://www.barefeats.com/santarosa.html
Here it shows that when idle the 8600 in the santa rosa macbook pros has a core clock freq of 169 and a memory clock of 100. Therefore the obtained results for the aluminium imacs:
Core Frequency: 59.4 MHz
Memory Frequency: 68.4 MHz
may be correct and the true frequencies will only be shown when a GPU intensive application is used.
Tech support said it's custom built for the Mac.
I called Apple Tech support to see if they knew which ATI card was in the new iMac and I told them what was found in this thread. He told me it's a custom built graphics card for the Mac. Which leads me to believe its an underclocked ATI Radeon HD 2600 XT since XP reports it as an XT and there is no Pro model on ATI's website. Still don't know what the the core and memory frequencies are under load though. If someone can run some tests I'd love to see what the performance is on the card.
I called Apple Tech support to see if they knew which ATI card was in the new iMac and I told them what was found in this thread. He told me it's a custom built graphics card for the Mac. Which leads me to believe its an underclocked ATI Radeon HD 2600 XT since XP reports it as an XT and there is no Pro model on ATI's website. Still don't know what the the core and memory frequencies are under load though. If someone can run some tests I'd love to see what the performance is on the card.
Since apple says its a 2600 pro I would say best odds are that its is an overclocked pro, second best chance would be mobility 2600 xt because thats what windows thinks it is.
But it is great to know that all of these poor benchmarks for the 2600 pro are not applicable to our iMacs.