Information

Dear forum members,
We are delighted to inform you that our forums are back online. Every single topic and post are now on their places and everything works just as before, only better. Welcome back!



Discussion

Discussion on Article:
Choosing the Best CPU for Doom III

Started by: Dewil | Date 08/25/04 04:37:25 AM
Comments: 93 | Last Comment:  08/25/16 07:39:20 PM

Expand all threads | Collapse all threads

[1-6]

1. 
It’s a little strange that every site points amd as the best (faster), but this isn’t the case here.

Do you think that you have selected some board/bios not very good?

It would be nice to see some lower end P4 platforms since each of 8 of 10 people I know have some ULI, SIS, VIA chipset not intel. Reminds the time when everyone tested P4 with I850 and RDRAM vs AMD systems, I have seen more then 100 intel motherboards and only one of them had that chipset inside, quite popular, hem.
Drawing a better picture than it really is.
0 0 [Posted by:  | Date: 08/25/04 09:38:05 AM]
Reply

2. 
1) a] 30 monsters? Does this situation represent the situation in real gameplay? I would suppose 5, maybe 8-10 monsters. The large number of monsters makes your test a litle bit synthetic.
b] Why ID have decided to use "wrong situation" for benchmarking? Any suggestions?
2) I have notices that the most boring situation during the gameplay is the loading of the new map. Maybe this is an another candidate for benchmarking?
3) The differences between processors in your test are a little bit low. Maybe this is a sign of GPU-dependence?
0 0 [Posted by:  | Date: 08/25/04 04:55:59 PM]
Reply

3. 
Clearly the tester has, in trying to make cpu-limited tests, created very gpu-limited tests. As others have pointed out, there is very little difference between the processors (excluding the Athlon XP) in the custom tests.

The reason intel edges ahead of amd in xbit's tests (by an insignificant margin when you look at the numbers) is probably because of the very slight interface advantage offered by PCI express which only makes a difference in rankings because of the gpu-dependant nature of the tests. You can see the two intel chipsets when paired with 3.4XE's swap positions, with the 925X taking the lead only in xbit's tests but losing to 875P in the default test.

Finally, as others have mentioned, cheating to get a "score" of monsters in one room is not a real world test. Adding monsters may stress the cpu but it clearly stresses the gpu more in most cases, judging by xbit's results. I don't know how biased shadowing is towards cpu or gpu but possibly xbit would have been better off finding a place with a lot of light sources instead of alot of monsters.
0 0 [Posted by:  | Date: 08/26/04 11:53:47 AM]
Reply
- collapse thread

 
#17,
It would be wise to read carefully before posting. Xbit article clearly states right in the beginning that their custom test was not gpu limited, because they have tested for that and that was the result.
0 0 [Posted by:  | Date: 08/26/04 02:26:14 PM]
Reply

4. 
There's no problem with the way they did their custom benchmark. We all know that our boxes tend to choke in those situations when there are many enemies on the screen. In fact, that's the only time you really NEED fps: if you are just strolling around and enjoying scenery, even 25 fps would probably be sufficient. In this resepect, their test is what we really need to judge how well someone's system would perform in a game, ie if it doesn't drop below 25 fps with 2 million monsters on the screen, you are good to go.
As for comparing cpu's, well, it's the same story considering what one needs from the cpu again, that is providing fluid fps numbers in heavy firefights.
I only have one problem with these test.
#13 said it well: how can a more cpu demanding demo give a higher average fps.
My guess is: 1) this demo is legit, 2)this demo is not more cpu depending.
Let me explain. 1) average fps is higher but min fps is lower. some parts of the custom demo are very easy on cpu/gpu and give insane numbers (200-300fps) for short periods of time.
2) both average fps and min fps are higher in the custom timedemo.

There's a third possibility, similar to second: min fps has nothing to do w/ cpu bottleneck in this particular demo. But that's a very remote possibility. So far, min fps in games has been mainly due to cpu bottlenecking in busy scenery/fights.

I have to say that there's really only one way to resolve these issues. Take fraps on the regular timedemo1 under your conditions. If it shows higher min fps numbers than the custom timedemo, you are ok. If not, then you, xbit labs, goofed.
0 0 [Posted by:  | Date: 08/26/04 02:21:22 PM]
Reply
- collapse thread

 
In response to your suggestion of using fraps to measure the timedemo speeds, I do not know what the results would be, but it would not prove anything either way. Even if the general assumption that low fps=cpu dependant holds true, there could be a split second of very low fps (=cpu dependency) in an otherwise gpu limited timedemo. This theoretical demo would still be more adept at measuring graphics card performance.

Imagine a demo that runs, on a baseline system, at:

100 fps for 55 seconds (completely gpu limited)
1 fps for 5 seconds (completely cpu limited)

there are 100*55+1*5=5505 frames, completed in 60 seconds

the average fps =5505/60=91.75 fps

doubling the gpu speed would yield: 200 fps for 27.5 seconds and still 1fps for 5 seconds. avg fps is 5505/32.5=169.38 fps
which is quite differnt from baseline.

doubling the cpu speed yields: 5505/(55+2.5)=95.74 fps
which is hardly different from baseline.

Clearly, this first example is a primarily gpu dependant test.

Now if a second demo has a scene that is not quite as demanding as the difficult scene (say 2 fps baseline), but went on for longer (say 55 seconds), the results would be (I will spare you the math, but you can check it yourself, the other 5 seconds are at 100fps).

baseline: 10.17 fps
2xgpu: 10.61 fps
2xcpu: 18.77 fps

which is clearly a cpu limited test, even though it has higher min fps (2) than the first example (1). These examples may not be very realistic, but they serve to provide a counterpoint to the assertion that low min fps=cpu limited, as it isn't always (when looking at the entire test). As a side note, this is the reason average fps is still a more popular measure than min fps, because average fps contains information of the entire test and is therefore more accurate than min fps which only contains information on a single point. Perhaps a hybrid measure, something like would be more useful?
0 0 [Posted by:  | Date: 08/26/04 05:24:17 PM]
Reply

5. 
How can you declare that your demo is more "high-CPU-load" than the standard one? Everyone can see, the standard one is 104.4 and yours is 130.4。So your cpu-burn demo is simple and valueless.
0 0 [Posted by:  | Date: 08/26/04 07:03:12 PM]
Reply

6. 
https://goo.gl/4i0uBC
https://goo.gl/PhraJz
https://goo.gl/SxX6ei
https://goo.gl/Wtglbv
https://goo.gl/W7QiMk
https://goo.gl/jyboMV
https://goo.gl/zjI1Gl
https://goo.gl/KSX2qc
https://goo.gl/CMBuir
https://goo.gl/JwuBVr
https://goo.gl/nsW19l
https://goo.gl/szSQQK
https://goo.gl/zh61vN
https://goo.gl/a5yEhZ
https://goo.gl/YnUF5z
https://goo.gl/7Bn8bR
https://goo.gl/dsj7b7
https://goo.gl/YcgA7U
https://goo.gl/952tj7
https://goo.gl/Gj50G4
https://goo.gl/sRp1wF
https://goo.gl/FuCcso
https://goo.gl/WLnDwp
https://goo.gl/piqRgA
https://goo.gl/oQBqVb
https://goo.gl/vil545
https://goo.gl/p1JuJy
https://goo.gl/7OKYLx
https://goo.gl/D1GMkk
https://goo.gl/QYFo7x
https://goo.gl/4X5pCO
https://goo.gl/6cN7lP
https://goo.gl/d2Nrs7
https://goo.gl/vvtZje
https://goo.gl/xCV2vS
https://goo.gl/6r3vKX
https://goo.gl/sZX64j
https://goo.gl/s2hN63
https://goo.gl/8H0z5F
https://goo.gl/VVkw0p
https://goo.gl/D4kLUi
https://goo.gl/PvU1M0
https://goo.gl/RDDDsr
https://goo.gl/jSb0C3
https://goo.gl/VGlcp4
https://goo.gl/X6FZRC
https://goo.gl/20it2n
https://goo.gl/icc6LF
https://goo.gl/4yrx4a
https://goo.gl/SFcGyz
https://goo.gl/IaWjEY
https://goo.gl/c0BzZc
https://goo.gl/jCJsZ1
https://goo.gl/39dBgj
https://goo.gl/biisZG
https://goo.gl/EzeCTn
https://goo.gl/XJODYi
https://goo.gl/D7S69I
https://goo.gl/aLrRwY
https://goo.gl/8aq8Iw
https://goo.gl/pLNsTn
https://goo.gl/IqDQo6
https://goo.gl/dkLWyd
https://goo.gl/jNPyd9
https://goo.gl/90PJsn
https://goo.gl/177OGn
https://goo.gl/3loHSS
https://goo.gl/TFNpsh
https://goo.gl/4sfhJU
https://goo.gl/S52zZb
https://goo.gl/TJPpY5
https://goo.gl/inqR5G
https://goo.gl/8Bba9S
https://goo.gl/Q6p1DX
https://goo.gl/KK1pK7
https://goo.gl/YMMwMp
https://goo.gl/z1W1Y6
https://goo.gl/VBpLeX
https://goo.gl/D0WHt0
https://goo.gl/AY2EPp
https://goo.gl/HLEX2S
https://goo.gl/LuQ9se
http://goo.gl/tJ3IVp
http://goo.gl/yAOMta
http://goo.gl/fIcPmK
http://goo.gl/IWFtd1
http://goo.gl/MvyywW
http://goo.gl/0eiZD1
http://goo.gl/lb6qQl
http://goo.gl/IhCtPi
http://goo.gl/xTN5Df
http://goo.gl/XcVPnZ
http://goo.gl/gB4Hsw
http://goo.gl/22sR4d
http://goo.gl/otM3hn
http://goo.gl/PpB1jG
http://goo.gl/q3Kl9R
http://goo.gl/ePauwm
http://goo.gl/tixfbx
http://goo.gl/3xmwva
http://goo.gl/5mCkjw
http://goo.gl/LQLKi6
http://goo.gl/3Bkfiy
http://goo.gl/kdioRj
http://goo.gl/QmsYQI
http://goo.gl/snThIh
http://goo.gl/p9LgtH
http://goo.gl/KAbfYO
http://goo.gl/Ie8R0m
http://goo.gl/WIPAue
http://goo.gl/NNth8W
http://goo.gl/axsqLC
http://goo.gl/PgRvor
http://goo.gl/l7pO0m
http://goo.gl/zAmi0K
http://goo.gl/3qWkui
http://goo.gl/ovKSdQ
http://goo.gl/5y2avI
http://goo.gl/x4oFM9
http://goo.gl/eZ4c4Q
http://goo.gl/e7WMO1
http://goo.gl/aZUgL0
http://goo.gl/JlY8j6
http://goo.gl/Bklj98
http://goo.gl/31HV27
http://goo.gl/31HV27
http://goo.gl/KwMMqT
http://goo.gl/IkRP5E
http://goo.gl/rWoDP9
http://goo.gl/ERKfdg
http://goo.gl/tv6m72
http://goo.gl/Q2fFrF
http://goo.gl/G6GySd
http://goo.gl/U6Z05N
http://goo.gl/kbQOd6
http://goo.gl/Onh366
http://goo.gl/xhCNcp
http://goo.gl/r2lfDx
http://goo.gl/47wrw7
http://goo.gl/9yVo6j
http://goo.gl/5NVZ3M
http://goo.gl/JwTXCM
http://goo.gl/fmJ5AH
http://goo.gl/fu0CLs
http://goo.gl/B9341O
http://goo.gl/c1LCtd
http://goo.gl/TpFqU8
http://goo.gl/QaAjMk
http://goo.gl/no9dHs
http://goo.gl/DhJpkV
http://goo.gl/czUOfC
http://goo.gl/O9wg1v
http://goo.gl/v5kDAx
http://goo.gl/LF83F7
http://goo.gl/Gd4LqK
http://goo.gl/Sxq6zr
https://goo.gl/pjJY5H
https://goo.gl/a1fl7S
http://goo.gl/CIqGeA
http://goo.gl/d5juEy
http://goo.gl/ldswKW
http://goo.gl/RtUJLP
http://goo.gl/BDP3b4
http://goo.gl/0sqzMa
http://goo.gl/Ef3gR4
http://goo.gl/LBgdvP
http://goo.gl/Jnz06R
http://goo.gl/fb586R
http://goo.gl/brKF1Y
http://goo.gl/zVe7Dg
http://goo.gl/8HljeK
http://goo.gl/VVZ4Rk
http://goo.gl/ioRng1
http://goo.gl/0YPYnY
http://goo.gl/lU2DxU
http://goo.gl/WJ0zDa
http://goo.gl/v8oM9U
http://goo.gl/hmjIXX
http://goo.gl/BWA9DB
http://goo.gl/Hy6YO0
http://goo.gl/qKDTVt
http://goo.gl/6fy1Rl
http://goo.gl/ajiDtz
http://goo.gl/jgrfWZ
http://goo.gl/QVMn3w
http://goo.gl/Vrx8Y8
http://goo.gl/3XjxIR
http://goo.gl/UmJlLs
http://goo.gl/l068Ll
http://goo.gl/9BJszt
http://goo.gl/SjTFHi
http://goo.gl/xvE0hX
http://goo.gl/rkOWqX
http://goo.gl/WSLxKA
http://goo.gl/GkcIbA
http://goo.gl/HLAK4y
http://goo.gl/IITo2M
http://goo.gl/W2O1gp
http://goo.gl/yjv5qC
http://goo.gl/1KLLBA
http://goo.gl/lp85gN
http://goo.gl/z1htQu
http://goo.gl/R9u2lM
http://goo.gl/EwtZyl
http://goo.gl/hzeKjg
http://goo.gl/BV2oo9
http://goo.gl/JL1RAd
http://goo.gl/5D5vW9
http://goo.gl/q5vo7B
http://goo.gl/qCnLnJ
http://goo.gl/Y2EBWU
http://goo.gl/i143qg
http://goo.gl/fIz8Wx
http://goo.gl/cCyh0M
http://goo.gl/NRCPBn
http://goo.gl/HwUhXC
http://goo.gl/IWtBLC
https://goo.gl/5xStpM
https://goo.gl/7VILsb
http://goo.gl/EbzMXT
http://goo.gl/pR96i6
http://goo.gl/pR96i6
http://goo.gl/ZtWg7w
http://goo.gl/WxjEky
http://goo.gl/BJm1FO
http://goo.gl/qjHgdc
http://goo.gl/wiCPhG
http://goo.gl/wnHGy8
http://goo.gl/E9hkPY
http://goo.gl/4dKfZJ
http://goo.gl/PtUJPK
http://goo.gl/VK8mM2
http://goo.gl/30bR3w
http://goo.gl/GLb7tl
http://goo.gl/a9GSCj
http://goo.gl/HUKQYn
http://goo.gl/I1iy4J
http://goo.gl/WIqqLw
http://goo.gl/YiE5JP
http://goo.gl/KrOOXT
http://goo.gl/Rc5vwo
http://goo.gl/WUgHZo
http://goo.gl/qwQ7bp
http://goo.gl/G06xDp
http://goo.gl/0UKNUe
http://goo.gl/2AxC3U
http://goo.gl/jGMgf7
http://goo.gl/5B56L8
http://goo.gl/zJU4fP
http://goo.gl/9CpG11
http://goo.gl/9CpG11
http://goo.gl/yBmTiR
http://goo.gl/yBmTiR
http://goo.gl/yBmTiR
http://goo.gl/2GWRMa
http://goo.gl/T33e3q
http://goo.gl/2oKnfv
http://goo.gl/nJthaf
http://goo.gl/Hlgy1Y
http://goo.gl/2hj7OD
http://goo.gl/7lczsi
http://goo.gl/zBpgPD
http://goo.gl/i6gzC8
http://goo.gl/ak388u
http://goo.gl/oEO5zp
http://goo.gl/qBMb7K
http://goo.gl/Ca6mqv
http://goo.gl/U9X5El
http://goo.gl/IvgvEo
http://goo.gl/NtYQZ3
http://goo.gl/wRgrXI
http://goo.gl/lhALWQ
http://goo.gl/lDVNsf
http://goo.gl/CYuUP4
http://goo.gl/Mz1sIF
http://goo.gl/z7Z30s
http://goo.gl/JxvbIA
http://goo.gl/gOYkRa
http://goo.gl/htMHtt
http://goo.gl/Zv0BrE
https://goo.gl/YqLiMI
http://goo.gl/olIrov
http://goo.gl/XY00mQ
http://goo.gl/IdTWUV
http://goo.gl/B0DmFV
http://goo.gl/KE1wlV
http://goo.gl/ZyKCiD
http://goo.gl/kVk86O
http://goo.gl/2XphJJ
http://goo.gl/iZhvFO
http://goo.gl/IKLkvJ
http://goo.gl/ReK8X1
http://goo.gl/KkHGIR
http://goo.gl/m9ezfs
http://goo.gl/XStsi9
http://goo.gl/0zVhDE
http://goo.gl/zQdVOE
http://goo.gl/OZJ1K0
http://goo.gl/tFtFYL
http://goo.gl/PZgU5Z
http://goo.gl/uiX13q
http://goo.gl/41S9XM
http://goo.gl/ckOIeF
http://goo.gl/fMEF2k
http://goo.gl/wfhmws
http://goo.gl/s01vwL
http://goo.gl/ZNg5bq
http://goo.gl/iDhyGJ
http://goo.gl/T5d4Lq
http://goo.gl/Aje8Ca
http://goo.gl/BK0Hlz
http://goo.gl/9q4YPC
http://goo.gl/R4YSU7
http://goo.gl/li3lKX
http://goo.gl/QheJWT
http://goo.gl/VEr14t
http://goo.gl/MDtE8C
http://goo.gl/3ZCIEL
http://goo.gl/I59k7g
http://goo.gl/raR9qy
http://goo.gl/yt8WX1
http://goo.gl/FPWJS2
http://goo.gl/4CqySk
http://goo.gl/e4J1jw
http://goo.gl/Dleufz
http://goo.gl/1OawxC
http://goo.gl/Pi5rkW
http://goo.gl/mRb1Y8
http://goo.gl/N5yoaM
http://goo.gl/C7KPBy
http://goo.gl/y7MRbw
http://goo.gl/YJyPs8
http://goo.gl/iQQwbS
http://goo.gl/hdSXSc
http://goo.gl/Vwulw4
http://goo.gl/Nx0fs9
http://goo.gl/DBIVZC
http://goo.gl/GzRAZk
http://goo.gl/2IfXBY
http://goo.gl/zxNP93
http://goo.gl/484I5H
http://goo.gl/REqqOM
http://goo.gl/tYDq7D
http://goo.gl/FbctJu
http://goo.gl/JfTT11
http://goo.gl/j5wjDp
https://goo.gl/OTNbEK
http://goo.gl/Sjnxug
http://goo.gl/1DChsS
http://goo.gl/uC75gg
http://goo.gl/Ek0viU
http://goo.gl/R9Td7G
http://goo.gl/Qxv4eI
http://goo.gl/aN0Sa1
http://goo.gl/hzxv69
http://goo.gl/UzYiIT
http://goo.gl/VuCPas
http://goo.gl/NoLlLn
http://goo.gl/Sfyvtp
http://goo.gl/LM82ke
http://goo.gl/NhaK8F
http://goo.gl/OtQwHZ
http://goo.gl/6EVCbQ
0 0 [Posted by: boled  | Date: 08/25/16 07:39:20 PM]
Reply

[1-6]

Back to the Article

Add your Comment