Here are some relative prices (note that these are Apple prices and the Australian Prices include a Sales Tax of 10%, I do not know if the USA and Canadian prices include any extra taxes)
The configuration used is 48 GB RAM and 1 TB internal storage, Nano option is not included. Presumed similar chargers for these 14" & 16"
My summary is:
The 16" 20 GPU core is better value in Australia relative to other M4 MacBook Pros
In Australia if one wants a 40 Core GPU then there is a saving in going with the 14" as there is a hit almost worth the Nano upgrade when buying the 16".
Australia:
14" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 4599
14" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 5749 +1,150 +25%
16" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 4899
16" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 6499 +1,600 +33%
16" Adds $Au300 extra in 20 Core GPU version
16" Adds $Au450 extra in 20 Core GPU version
Canada
14" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 3749
14" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 4974 +1225 +33%
16" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 4049
16" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 5299 +1250 +31%
16" Adds $Ca300 20 GPU Core and $Ca325 for 40 Core GPU
USA
14" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 2799
14" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 3699 +900 +32%
16" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 3099
16" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 3999 +900 +29%
16" Adds $US300 extra in both versions
The configuration used is 48 GB RAM and 1 TB internal storage, Nano option is not included. Presumed similar chargers for these 14" & 16"
My summary is:
The 16" 20 GPU core is better value in Australia relative to other M4 MacBook Pros
In Australia if one wants a 40 Core GPU then there is a saving in going with the 14" as there is a hit almost worth the Nano upgrade when buying the 16".
Australia:
14" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 4599
14" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 5749 +1,150 +25%
16" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 4899
16" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 6499 +1,600 +33%
16" Adds $Au300 extra in 20 Core GPU version
16" Adds $Au450 extra in 20 Core GPU version
Canada
14" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 3749
14" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 4974 +1225 +33%
16" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 4049
16" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 5299 +1250 +31%
16" Adds $Ca300 20 GPU Core and $Ca325 for 40 Core GPU
USA
14" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 2799
14" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 3699 +900 +32%
16" Apple M4 Pro chip with 14‑core CPU, 20‑core GPU, 16‑core Neural Engine 3099
16" Apple M4 Max chip with 16‑core CPU, 40‑core GPU, 16‑core Neural Engine 3999 +900 +29%
16" Adds $US300 extra in both versions