The devil is in the detail!
True UHD and HDMI 2.0 support 4K 50/60Hz with RGB 4:4:4 (8-bit color), i.e. no chroma subsampling. It also supports an expanded colorspace as good as or even greater than that of film (Rec. 2020) which, once display devices fully support it, should allow significantly improved color representation.
As you can see the 1030, due to the bandwidth limitations of HDMI 1.4 (and, almost certainly, of the chipset too) supports 4K 50/60Hz with 4:2:0 chroma subsampling, i.e one quarter of the color information. Now 4:2:0 is the same as that encoded onto blu-ray, so it is hardly "bad". On the other hand, the improved color representation possible with UHD/HDMI 2.0 is considered by some more important than the increased resolution, which even with a 65" TV is probably unnoticeable at normal viewing distances!
So, the choice is yours, to stick with the 1030 and not be able to pass "true" UHD or go for the 1040 with HDMI 2.0.
(HDMI 2.0 also supports more discrete channels of audio, although that is probably moot with the 1030/1040.)
Last edited by jong1; 07-09-2014 at 11:40 AM.