Speed PCIe, DDR & Internet Bandwidth
| PCIe Version | 1 Lane | 2 Lanes | 4 Lanes | 8 Lanes | 16 Lanes |
|--------------|---------|----------|----------|----------|-----------|
| ver 3 | 1 GB/s | 2 GB/s | 4 GB/s | 8 GB/s | 16 GB/s |
| ver 4 | 2 GB/s | 4 GB/s | 8 GB/s | 16 GB/s | 32 GB/s |
| ver 5 | 4 GB/s | 8 GB/s | 16 GB/s | 32 GB/s | 64 GB/s || DDR speed | Data Rate | Max Bandwidth |
+----------------+----------------+------------------+
| DDR4 3200 mhz | 3200 (MT/s) | 25 (GB/s) |
| DDR5 6400 mhz | 6400 (MT/s) | 51 (GB/s) |
+----------------+----------------+------------------+| Resolution 60hz | 8-bit | 10-bit |
|-----------------|-----------|-----------|
| UHD 4K | 0.5 GB/s | 1.9 GB/s |
| QHD | 0.3 GB/s | 0.7 GB/s |
| FHD | 0.2 GB/s | 0.4 GB/s || Internet Speed | Megabytes per second (MB/s) |
|----------------|-----------------------------|
| 100 Mbps | 12 (MB/s) |
| 500 Mbps | 62 (MB/s) |
| 1 Gbps | 125 (MB/s) |
Gb/s (Gigabits per second)
This is a measure of data transfer speed. One gigabit is equal to ( 2^9 ) or 1,000,000,000 bits.
This unit is commonly used in networking and data transfer rates for interfaces like SATA.
GB/s (Gigabytes per second)
One gigabyte is equal to ( 2^3 ) or 8 gigabits. It’s important to note that there are 8 bits in a byte,
so when you’re comparing Gb/s to GB/s, you have to multiply or divide by 8 to convert between them.
So, when we say SATA 6Gb/s, it means the maximum transfer rate is 6 gigabits per second.
To convert this to gigabytes per second, you divide by 8, which gives you 0.75 GB/s.
On the other hand, PCIe 4.0 x4 8GB/s means the maximum transfer rate is 8 gigabytes per second,
which is equivalent to 64 gigabits per second (since 1 byte = 8 bits).
Therefore, PCIe 4.0 x4’s 8GB/s is much faster than SATA’s 6Gb/s because:
8GB/s = 64Gb/s / 64Gb/s is much greater than 6Gb/s