Are GPUs more expensive than CPUs

Manufacturing costs for CPU and GPU with the same size

Leave that aside Difference in the lithographic process from the one and the other, why if a CPU is much smaller, does it have a much higher cost than a complete card that includes GPUs, memory chips, power phases, fans, etc.?

The cost of making the CPUs and GPUs

For starters, we need to keep one thing in mind, and that is that while a CPU is designed for general purpose computing, the internal components of a GPU are designed to perform a single task (or rather a group of tasks), not one other than graphics processing is. In other words, a CPU could do the tasks of a GPU (much slower, yes), but a GPU cannot do the tasks of a CPU. This means that both classroom games as well The design of a CPU is much more complicated than that of a GPU, which increases its cost.

The manufacturing cost is therefore not determined by the size of the CPU or GPU, but by the complexity of manufacturing and design. This also implies the "waste" in manufacturing: if we talk about the wafers of the processors, the small defects on the outside of these make the processors unusable, so that their waste is greater than with GPUs (which, as you will know, "Defective" GPUs often reused in lower models with disabled cores and others.

When we talk of complexity, we might think that a CPU typically only has a handful of cores, while in many cases a GPU is on the order of thousands, so it should be more complex. The reality is that ultimately all of these GPU cores are identical and designed to compute in parallel so they don't add up in this regard.

Hence, the cost of making the CPUs is higher than that of the GPUs, mainly due to two factors: first, the complexity and, second, the waste, and it doesn't have much to do with the size of the chip because there is in the end and in the out the difference in raw materials is almost negligible.

The price is dictated by the market

This does not mean, for example, one RTX 2080 Ti is considered extremely expensive, while a 32- core AMD Threadripper is considered good value, although it also comes at a high price. Everything depends on perception and the market situation, but of course the manufacturing costs of the devices also influence, since every manufacturer has the main goal of making money with their products.

Thus, there is no relationship with Tool size and cost . For example, if you were sold a CPU with a cube of 150 mm 2 for 300 euros, one with a cube of 300 mm 2 doesn't necessarily cost twice as much, and the same thing happens with GPUs. The price of products is of course determined by the manufacturing costs, but also by the complexity of the design and of course the market situation.