Truth about Videocards/GPUs
Ex. AMD Radeon HD 6770 / Nvidia GeForce GTX 780
- The first digit is the generation (2nd Important)
- The second digit is the performance indicator (Very Important)
- The third digit is a refined performance indicator (Least Important)
- The forth digit is often just 0
Performance indicator numbers: (red number)
1: Intergrated graphics product, very low performance
2: Low performance
4-3: Low-Mid performance
5-6: Midrange performance
7-8: High performance
9: Ultra High performance
Examples:
High Performance ang AMD Radeon HD 6770 at Nvidia Geforce GTX 770.
Low-Mid Performance ang AMD Radeon 6470 at Nvidia Geforce 530
So when it comes to performance. the higher the second number the better.
So AMD HD 5000 series… 5450<5550<5570<5670<5750<5770<5830…
if combined AMD HD 4000 series… 4350<5450=4550<5550<5570=4670<5670<575…
not only memory is important to look at you also need to check other like:
(red as the most important. and green as second most important.)
Architecture
Pipelines
Pixel/Vertex Shaders
Core Speed (here you could know if you could overclock it. Nvidia has base boost feature)
Shader Speed
Memory Speed
Memory Bus Width ( 64bit/128bit/256bit etc.)
Memory Type (GDDR5/4/3)
Memory Size (ng GPU) (here we usually look at which we should not. the 2GB 1GB…)
Technology
Power Consumption
DirectX Support (11 up)
OpenGL Support
Physx Support ( Nvidia only)
CUDA