asus gt630-2gd3The Asus GT 630 is based on the older GF108 logic with 2048MB of GDDR3 memory. The GT 630 is about 311 GFLOPS.

  • GF108
  • 40nm fabrication
  • 116mm² die
  • 2 SMX
  • 96 CUDA
  • 16 ROP
  • 4 TMU
  • 311 GFLOPS
  • 2048MB Samsung GDDR3
  • 128-bit memory
  • 28.8 GB/s bandwidth
  • 810 MHz GPU clock
  • 900 MHz memory clock
  • 1620 MHz shader clock
  • PCI Express 2.0 x16
  • D-Sub, DVI, HDMI
  • HDCP
  • DirectX 11
  • 75W maximum

The Asus GT 630 is a dual slot cooler based card. There is a single large fan to cool the ASIC and the memory chips. The Asus card is a few centimeters longer than the reference card due to the larger cooler. The GT 630 is still short enough to fit µATX chassis easily.

Realistically the GT 630 needs a good quad core system to be able to get the most out of this card. More recent i3 and i5 processors are adequately powerful and they can manage with the GT 630 readily. An old Core 2 Duo will bottleneck with the GT 630  but the Core 2 Quad is powerful enough.  Similarly an AMD Athlon 64 X2 will bottleneck but the Athlon 64 X4 is powerful enough.

The GT 630 has a 128-bit memory bus which does provide more bandwidth compared to the older 64-bit cards., The pressure from integrated graphics has pushed the designers to improve the performance of add-in cards.

The full x16 lane design works well for shared memory. This is seen more with Windows 10 x64 as it manages video card memory mapped with main memory and how DMA can move blocks of textures and shaders into the GPU as needed. With 2048MB VRAM, video cards like this need 64-bit addressing to be able to use the card to best advantage. Best bet for the GT 630 is to have at least 8192MB of system memory.

The fan at idle runs at 50% speed to keep the card cool. The GF108 slows down to 50 MHz at idle to minimize power consumption and the memory also is downclocked for the same reason.

Asus has a UEFI VBIOS but you have to install the card on one of their branded motherboards which is unethical and an example of whitelisting. Such acts are illegal in many countries.

The GT 630 supports HDCP. It also supports BD 3D disks fine.


The performance of the GF108 is adequate for a fair number purposes. The low power design does limit the workload. The GPU is designed for basic gaming use.

Furmark at 1920×1080 averaged a dismal 7fps but the card was thermally stable at 80°C with the fan barely above idle. Asus uses a custom alloy for the heatsink with better them conductivity to allow the card to be cool even under a brutal workload. No need to worry about gaming all day long, the Asus GT 630 can take it standing up.

The 96 CUDA cores on the GT 630 can handle Xbox period games at 1920×1080 fairly well. Xbox 360 period games are much more demanding and the GT 630 is better off at 800×600 resolution.