- May 27, 2015
- 3
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- 4,510
Hi guys, I have a Toshiba satellite laptop and it's specs are as follow:
i7-4700MQ 2.4GHz - 3.4GHz
16GB DDR3 - 1600MHz
Nvidia GT740M 2GB
Now, after some research I found out that my OEM graphics card has a 64-bit memory interface for GDDR3 at 900MHz frequency (as with all ddr3s). This gives a theoretical bandwidth of about 14.4GB/s (900 x 2 x 64 / 8).. However, I realised that my DDR3 system RAM runs in dual-channel configuration at 798MHZ for DDR3 which consequently has a 128-bit interface cause of dual channel configuration and therefore gives a much higher theoretical bandwidth of 25.54 GB/s.. so like is there a way that I can direct my GPU to just use the 16 GB of system RAM rather than its own VRAM?
I only play GTA5 on normal settings on the laptop which averages arnd 23 fps and yeah when I overclock the vram to 1050 MHz the bandwidth increases and game then benchmarks slightly smoother at 26 fps average, so I was wondering if I use my system RAM which has much higher bandwidth, the game might run even smoother.. or am I just thinking too technical atm? :L
Is it even possible to prioritise system memory over dedicated memory through the BIOS or any other method?
The laptop uses a maximum of about 7GB of the 16gb ram (and thats also wen i play gta5) so i was really hoping if someone could tell me a way by which i can dedicate about 4gb of that system ram to the gpu and also give it priority over its own vram
All answers much appreciated!
i7-4700MQ 2.4GHz - 3.4GHz
16GB DDR3 - 1600MHz
Nvidia GT740M 2GB
Now, after some research I found out that my OEM graphics card has a 64-bit memory interface for GDDR3 at 900MHz frequency (as with all ddr3s). This gives a theoretical bandwidth of about 14.4GB/s (900 x 2 x 64 / 8).. However, I realised that my DDR3 system RAM runs in dual-channel configuration at 798MHZ for DDR3 which consequently has a 128-bit interface cause of dual channel configuration and therefore gives a much higher theoretical bandwidth of 25.54 GB/s.. so like is there a way that I can direct my GPU to just use the 16 GB of system RAM rather than its own VRAM?
I only play GTA5 on normal settings on the laptop which averages arnd 23 fps and yeah when I overclock the vram to 1050 MHz the bandwidth increases and game then benchmarks slightly smoother at 26 fps average, so I was wondering if I use my system RAM which has much higher bandwidth, the game might run even smoother.. or am I just thinking too technical atm? :L
Is it even possible to prioritise system memory over dedicated memory through the BIOS or any other method?
The laptop uses a maximum of about 7GB of the 16gb ram (and thats also wen i play gta5) so i was really hoping if someone could tell me a way by which i can dedicate about 4gb of that system ram to the gpu and also give it priority over its own vram
All answers much appreciated!
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