Ultra-Speed DDR3 Revisited: AMD APU Memory Scaling
Simply put, the APU puts all available memory bandwidth to use. Perfect scaling all the way up to 2500MHz in the synthetic tests. There seems to be no ceiling here!
Next we’ll look at a couple of “real-world” game benchmarks, with both a current DX11 title and an older DX10 example.
At 1366x768 the Thief benchmark was fairly smooth with the DDR3-2500 memory, hitting close to 30FPS, and at 1080p the game was actually approaching playability at nearly 20FPS. A “very low” preset is available as well, which pushes the FPS numbers higher still.
For the DX10 example we look at results from the official Metro 2033 benchmark.
Once again each memory speed increase brought higher frame rates and smoother results (with the exception of the one lower min FPS 1080p result).
Overall, the results from the game benchmarks were outstanding, and with regard to memory bandwidth from the previous Intel system benchmarks there was no comparison. Memory scaling with this APU was linear all the way up to 2500MHz, and would presumably continue far beyond.