RAM capacity and data transfer speed are key specifications.
RAM capacity and data transfer speed are key specifications.
Since the capacity of RAM that can be written to or read each second stays the same regardless of how much more RAM is available, think of it like buckets. You have a hose filling one bucket at 5 gallons per minute, and another drum holding 55 gallons. Both act as buckets, though the hose size remains constant, so they fill up together at the same speed.
Bandwidth depends on RAM speeds and other factors, not just capacity. Think of a space with 100 people and 100 spots, but only one entrance. Would you think a larger room would help them leave quicker? Adding more exits (doors) increases the bandwidth. It doesn't matter if the room is large or small—more doors mean faster exit times.
The word "doado" could refer to something related to being used or given away, but its exact meaning depends on context.
They anticipate it will be kept in RAM or the CPU’s cache in practice. The bulk of data resides on a hard drive, moves to memory, and is then moved to the CPU’s cache when required. This process isn’t related to the speed or capacity of your memory bus.
I believe you're grasping it now, meaning the data transmitted over the bandwidth isn't kept in RAM.
Bandwidth refers to the quantity of information moved each second between the processor and memory. The route data takes is known as the memory bus. Raising the RAM's operating speed—for instance, from 2133 MHz to 4266 MHz—doubles the bits transferred per second since 4266 MHz runs at twice the rate. Imagine this: 2133 MHz sends a constant stream of 'I's over a tiny span of time. At 4266 MHz, that same flow happens twice as fast. This difference exists for the exact same duration. Multiplying by the bits sent per second shows the 4266 MHz version handles double the workload. Other factors also play a role, such as memory hierarchy levels and bus capacity. DDR4 channels typically carry 128 bits per cycle, while DDR4-64 lanes can push it to 1280 bits per cycle. Higher-end options like GDDR6X or HDM2 memory offer even wider buses—up to 384 bits or 4096 bits respectively. When discussing performance, terms like bandwidth, speed, and frequency often overlap, but they describe distinct aspects of data transfer. For example, a GPU with 6GB GDDR6 on a 192-bit bus delivers about 14.2 Gbps after overclocking. The real maximum bandwidth for such a setup is around 336 GB/s, though speed and bandwidth are usually expressed in similar units yet remain loosely connected.
They use multiple transmissions and often repeat data to ensure reliability, not because they lack storage space.