new Span vs stackalloc

            public void WriteFloat(uint address, float value)
            {
                Span<byte> memory = stackalloc byte [sizeof(float)]
                BinaryPrimitives.WriteSingleBigEndian(memory, value);
                SetMemory(address, memory, out _);
            }

            public void WriteFloat(uint address, float value)
            {
                var memory = MemoryMarshal.Cast<float, byte>(new Span<float>(ref value));
                BinaryPrimitives.WriteSingleBigEndian(memory, value);
                SetMemory(address, memory, out _);
            }