Xbox One memory performance improved for production console

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Bandwidth is at a premium in the Xbox One owing to the slower DDR3 memory employed in the console, which does not compare favourably to the 8GB unified pool of GDDR5 in the PlayStation 4. The 32MB of "embedded static RAM" within the Xbox One processor aims to make up the difference, and was previously thought to sustain a peak theoretical throughput of 102GB/s - useful, but still some way behind the 176GB/s found in PlayStation 4's RAM set-up. Now that close-to-final silicon is available, Microsoft has revised its own figures upwards significantly, telling developers that 192GB/s is now theoretically possible.

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So due to the already low latency of DDR3 and adding in that the bandwidth of the ESRAM being faster than the PS3s DRR5 it looks like that performance gap people have been boasting got a little smaller.

Of course DDR3 is going to benefit the CPU more and DDR5 will benefit graphics more but the ESRAM gives the Xbone the best of both worlds. High data transfer and low latency needed for linear calculations of a CPU.