> most workloads could actually run more efficiently if they had more memory bandwidth and lower latency access to memory
Turns out memory access speed is more or less the entire game for everything except scientific computing or insanely optimized code. In the real world, CPU frequency seems to matter much less than DRAM timings, for example, in everything but extremely well engineered games. It'll be interesting to learn (if we ever do) how much of the "real-world" 25% performance gain is solely due to DDR5.
I remember getting my AMD K8 Opteron around 2003 or 2004 with the first on-die memory controller. Absolutely demolished Intel chips at the time in non-synthetic benchmarks.
Turns out memory access speed is more or less the entire game for everything except scientific computing or insanely optimized code. In the real world, CPU frequency seems to matter much less than DRAM timings, for example, in everything but extremely well engineered games. It'll be interesting to learn (if we ever do) how much of the "real-world" 25% performance gain is solely due to DDR5.
I remember getting my AMD K8 Opteron around 2003 or 2004 with the first on-die memory controller. Absolutely demolished Intel chips at the time in non-synthetic benchmarks.