Table of Contents
How do you quantify GPU performance?
Frame Rate: One of the best measurements of performance in any graphics card is the frame rate, which is usually measured in frames per second (FPS). A frame rate is essentially the measurement of how many images a GPU can render and how many images are being displayed on a monitor every second.
Is integer math faster than floating point?
Integer sums (and AND / OR / XOR ) and products take the same time, divisions (and modulo) are three times slower. Floating-point products are twice slower than sums, and divisions even slower. Floating-point operations are always slower than integer ops at same data size. Smaller is faster.
What are the downsides of using a GPU?
Disadvantages of Graphics Card
- Cost. Graphics cards generally expensive depending on the model.
- Speed. Whenever there is high resolution and colors, there is always a performance effect.
- Overheating. As mentioned earlier graphics card consume more power.
- Weight.
- Power Consumption.
Does Matlab use the GPU?
If you have a GPU, then MATLAB automatically uses it for GPU computations. You can check and select your GPU using the gpuDevice function. If you have multiple GPUs, then you can use gpuDeviceTable to examine the properties of all GPUs detected in your system.
Why is integer division slow?
Division is per se slower than multiplication, however, I don’t know the details. The basic reason is that, similar to functions such as sin or sqrt, it’s just mathematically more complex. IIRC, a multiplication takes about 10 cycles on an average CPU, while a division takes about 50 or more.
Are integers more precise than floats?
In the sum of a float and a integer, is there any precision lost? Yes, a normal 32-bit integer is capable of representing values exactly which do not fit exactly into a float. A float can still store approximately the same number, but no longer exactly.