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amd fx 8320 good for edtting or move to intel - Page 2

post #11 of 13
Thread Starter 
Quote:
Originally Posted by Undervolter View Post

The gain is 20% for the same clock (FX6300 at 3.5 vs FX8320 at 3.5 or both at 4Ghz or both at 4.5Ghz). The higher the clock you obtain with the 8320 compared to the 6300, the higher the gain.

I always use this "unorthodox" way to calculate relative gains. STOCK:

FX6300: 3.5x6cores= 21 Ghzxcore (arbitrary unit)
FX 8320: 3.5x8cores= 28 Ghzxcore

So for 28 there is a gain of 7. Hence:

Theoretical gain = 25% (which is close to what i observed, considering the penalty of the shared FPU)

Another example:

FX6300@ 4Ghz = 24 Ghzxcores
FX8320 @ 4.5Ghz = 36 Ghzxcores

So for 36, the gain is 12. Hence: 33% gain

Mind you, this gain applies to multithreaded applications that can use 100% all cores (like video encoding).

In this way you can calculate approximately ANY performance gain between FX at different overclcoks.
ok so my fx 6300 at 4.6ghz and fx 8320 say at 4.5ghz or higher would be better
post #12 of 13
Quote:
Originally Posted by skitz9417 View Post

ok so my fx 6300 at 4.6ghz and fx 8320 say at 4.5ghz or higher would be better

With that combination, theoretically, you have

FX 6300 = 4.6x6 = 27.6
FX8320 = 4.5x8= 36

So for 36 the gain is 8.4, hence gain is 23%

Worse case scenario, let's say 20%

This one agrees too, that at the same clocks, there is a 25% gain.

http://www.cpu-world.com/Compare/301/AMD_FX-Series_FX-6300_vs_AMD_FX-Series_FX-8320.html


So in your case, you should see a 20-23% gain. On single threaded applications you will lose a liitle bit of speed and same in games with <7 cores (provided that said games will load 100% one or more cores, otherwise you will see no difference at all).
Edited by Undervolter - 10/21/14 at 7:21am
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(16 items)
 
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CPUMotherboardGraphicsRAM
FX-8320@4Ghz Gigabyte 970 UD3P rev2.1 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
Hard DriveHard DriveOptical DriveOptical Drive
Crucial BX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
CoolingOSMonitorKeyboard
Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
PowerCaseMouseAudio
EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-8300 Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
Hard DriveHard DriveOptical DriveCooling
Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
OSMonitorKeyboardPower
Windows 7 Pro 64bit Samsung S22B350H Microsoft Wired 600 Corsair VS350 
CaseMouseAudio
Lepa LPC 306 Logitech M90 Onboard 
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Main
(16 items)
 
Dedicated Encoder
(15 items)
 
 
CPUMotherboardGraphicsRAM
FX-8320@4Ghz Gigabyte 970 UD3P rev2.1 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
Hard DriveHard DriveOptical DriveOptical Drive
Crucial BX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
CoolingOSMonitorKeyboard
Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
PowerCaseMouseAudio
EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-8300 Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
Hard DriveHard DriveOptical DriveCooling
Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
OSMonitorKeyboardPower
Windows 7 Pro 64bit Samsung S22B350H Microsoft Wired 600 Corsair VS350 
CaseMouseAudio
Lepa LPC 306 Logitech M90 Onboard 
  hide details  
Reply
post #13 of 13
Thread Starter 
Quote:
Originally Posted by Undervolter View Post

With that combination, theoretically, you have

FX 6300 = 4.6x6 = 27.6
FX8320 = 4.5x8= 36

So for 36 the gain is 8.4, hence gain is 23%

Worse case scenario, let's say 20%

This one agrees too, that at the same clocks, there is a 25% gain.

http://www.cpu-world.com/Compare/301/AMD_FX-Series_FX-6300_vs_AMD_FX-Series_FX-8320.html


So in your case, you should see a 20-23% gain. On single threaded applications you will lose a liitle bit of speed and same in games with <7 cores (provided that said games will load 100% one or more cores, otherwise you will see no difference at all).
ok thank you
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