Overclock.net › Forums › Graphics Cards › Graphics Cards - General › Is 1Gb VRAM really enough in todays games?
New Posts  All Forums:Forum Nav:

Is 1Gb VRAM really enough in todays games?

post #1 of 132
Thread Starter 
I see a constant stream of people looking for new graphics cards but can't decide between the 6900 series or the new GTX570/580 cards.

One of the biggest differences between the 2 is the amount of frame buffer these cards have.

Now before I got my 6970 I had CrossFire 5850's which Is a bit of a down grade in terms of frame rates in every benchmark I've tested. The reason I moved to a 6970 was the 2Gb frame buffer that it had compared to the 1Gb my 5850's had frown.gif

At my resolution of 1920x1080 I was becoming VRAM limited in some games with my 5850's frown.gif

The main offenders were :

Metro 2033
Crysis
Crysis Warhead
S.T.A.L.K.E.R
S.T.A.L.K.E.R : Clear Sky
S.T.A.L.K.E.R : Call Of Pripyat

I know from a previous article that at Ultra settings S.T.A.L.K.E.R : Clear Sky can use anything up to 900mb of VRAM, That's at a modest resolution with no anti-aliasing enabled. S.T.A.L.K.E.R : Call Of Pripyat uses more then that! And if you use any of the complete series mods then frame buffer usage goes through the roof.

Crysis and Warhead use just under 1Gb at my resolution with no anti-aliasing, Turning on 4xAA or more jumps that figure over the 1Gb mark, And if you use any of the texture packs it can massively spike upwards beyond that. I use the hi-resolution foliage pack along with Rygels texture pack and I reckon my VRAM usage with no anti-aliasing has to be around the 1.5Gb mark.

Now as I've said in terms of all out frame rates my 6970 is quite a step down from my 5850 Crossfire but the 6970 provides a much much better gameplay experience.

The stuttering I used to get in some games has all gone, Games are smoother and more consistent.

I really do think that at 1920x1080 1Gb of VRAM is really starting to become a bit low in some cases.
post #2 of 132
I don't think so. Yes, if you crank the resolution to 1080 in Eyefinity, you'll run out of Vram, but actual RAM is dynamically allocated whenever Vram is not enough.
Crysis runs fine on 512Mb cards too...
My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
post #3 of 132
Thread Starter 
Quote:
Originally Posted by ronnin426850;12799819 
I don't think so. Yes, if you crank the resolution to 1080 in Eyefinity, you'll run out of Vram, but actual RAM is dynamically allocated whenever Vram is not enough.
Crysis runs fine on 512Mb cards too...

I've had 512mb cards and Crysis stuttered like hell!!
post #4 of 132
Quote:
actual RAM is dynamically allocated

It is? I have 12gb RAM, and 1280mb vram running at 2560x1600. Whenever I hit that vram cap, my framerate just drops to unplayable.
post #5 of 132
Quote:
Originally Posted by almighty15;12799901 
I've had 512mb cards and Crysis stuttered like hell!!

It plays rather fine on my 512Mb 4870 on 1440x900 (1400x1050 too). Yes, its not 1080, but its not a low res, and AA is on smile.gif So 1Gb should be more than enough for 1080.
Quote:
Originally Posted by Methos07;12799947 
It is? I have 12gb RAM, and 1280mb vram running at 2560x1600. Whenever I hit that vram cap, my framerate just drops to unplayable.

Or at least it Should. When you open the adapter settings it should say how much RAM can be allocated as Vram, mine is 1790Mb. This, +512Mb of the card itself give me 2300Mb Vram total, which is rather enough.

Of course, the dynamically allocated RAM is way slower.

How do you monitor your Vram? I could test..
My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
post #6 of 132
Yes, it's enough unless you're playing at a resolution higher than 1920x1200 with AA.
    
CPUMotherboardGraphicsRAM
Core 2 Duo P7450 @2.7GHz Pegatron G60VX (A12) GeForce GTX 260M 1GB @610/1500/2000 Hynix 4GB DDR2 @1000MHz 
Hard DriveOptical DriveOSMonitor
Seagate Momentus 7200.4 320GB LG GSA-T50N, HP dvd1170r Windows 7 Home Premium 64-bit HP W2207 22" (1680x1050) 
KeyboardPowerMouse
Microsoft Digital media Keyboard 3000 Delta Electronics ADP-120ZB BB 120W Logitech G500 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core 2 Duo P7450 @2.7GHz Pegatron G60VX (A12) GeForce GTX 260M 1GB @610/1500/2000 Hynix 4GB DDR2 @1000MHz 
Hard DriveOptical DriveOSMonitor
Seagate Momentus 7200.4 320GB LG GSA-T50N, HP dvd1170r Windows 7 Home Premium 64-bit HP W2207 22" (1680x1050) 
KeyboardPowerMouse
Microsoft Digital media Keyboard 3000 Delta Electronics ADP-120ZB BB 120W Logitech G500 
  hide details  
Reply
post #7 of 132
Thread Starter 
Quote:
Originally Posted by LOL_Wut_Axel;12800196 
Yes, it's enough unless you're playing at a resolution higher than 1920x1200 with AA.

Then why did I hit VRAM limits on my old 1Gb 5850's at 19201080?
post #8 of 132
Thread Starter 
Quote:
Originally Posted by ronnin426850;12800157 
Or at least it Should. When you open the adapter settings it should say how much RAM can be allocated as Vram, mine is 1790Mb. This, +512Mb of the card itself give me 2300Mb Vram total, which is rather enough.

Of course, the dynamically allocated RAM is way slower.

You still have 512mb and anything over it has to transfer it from local system RAM or direct from the HDD, Either option causes lag and stuttering.
post #9 of 132
Quote:
Originally Posted by ronnin426850 
How do you monitor your Vram? I could test..

GPU-z shows how much VRam is being used on you video card
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core i5 - 750 @ 3.35GHz (159x21), Cooled by Hy... Asus P7P55D Pro Sapphire AMD Radeon R9 270X OC x2 4GB (8gb) Kingston DDR3 1600MHz 
Hard DriveOptical DriveOSMonitor
x2 500gb and a 1000gb CD/DVD RW drive Windows 7 Premium x64 22" Samsung SyncMaster 2233 120Hz 
KeyboardPowerCaseMouse
Logitech Internet 350 Antech True Power 750watt Coolermaster Storm Scout Gigabyte M7 800/1600/3200dpi 
  hide details  
Reply
post #10 of 132
Thread Starter 
Quote:
Originally Posted by toxaris71;12800253 
GPU-z shows how much VRam is being used on you video card

Only Nividia cards have this ability, It's not supported on ATI cards.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Graphics Cards - General
Overclock.net › Forums › Graphics Cards › Graphics Cards - General › Is 1Gb VRAM really enough in todays games?