public NodeResources withMemoryGiB(double memoryGiB) {
        if (memoryGiB == this.memoryGiB) return this;
        return new NodeResources(vcpu, memoryGiB, diskGb, bandwidthGbps, diskSpeed, storageType, architecture, gpuResources);
    }
Returns the standard cost of these resources, in dollars per hour
config-provisioning/src/main/java/com/yahoo/config/provision/NodeResources.java