Quick Answer
At 4K, the Core Ultra 9 285K is not the best Rand-per-frame CPU — the 245K (R6,500 vs R12,000) delivers 98%+ of the 285K's 4K gaming performance for R5,500 less. The 285K is worth its cost at 4K only for SA buyers who also run heavy workstation workloads (rendering, simulation) on the same machine. Paired with an RTX 4080 Super (~R20,000 at Evetech), the 285K achieves 63–80 fps at 4K Ultra in Cyberpunk 2077 — the GPU is the bottleneck and determines 99% of the performance at this resolution.
285K at 4K: Honest Performance Numbers
With RTX 4080 Super at 3840×2160 Ultra settings:
Cyberpunk 2077: 63–79 fps native (93–120 fps DLSS Quality).
Forza Horizon 5: 68–84 fps native (100–125 fps DLSS).
Hogwarts Legacy Ultra: 57–72 fps native.
EA FC 25 at 4K Ultra: 95–130 fps.
CS2 at 4K High: 130–175 fps (CPU-bound segments — 285K leads here).
The 285K and 245K are within 2 fps of each other in GPU-limited 4K titles. Only CS2 and Valorant at 4K show a measurable CPU influence, where the 285K's 5.7 GHz boost helps maintain high framerates in CPU-bound network prediction code.
Rand-per-Frame at 4K: The Full Picture
Core Ultra 5 245K (R6,500) + RTX 4080 Super: 69 fps avg at 4K Ultra → R0.0944 per fps (full build R40,500).
Core Ultra 9 285K (R12,000) + RTX 4080 Super: 71 fps avg at 4K Ultra → R0.0713 per fps (full build R46,000).
The 285K build costs R5,500 more for the same GPU performance at 4K. Rand-per-frame favours the 245K by over 30% at this resolution.
When the 285K at 4K Justifies Its Price for SA Buyers
Purchase the 285K for a 4K build if: you render 3D scenes or compile code alongside gaming (the extra cores deliver meaningful workstation throughput); you plan to pair it with an RTX 4090 (~R35,000) where the 285K's high single-core boost justifies the premium; or you run a professional workflow where no other Arrow Lake CPU meets your performance requirements.
FAQ
Is the Core Ultra 9 285K worth R12,000 for a 4K gaming build in SA?
For gaming only at 4K, no — the 245K at R6,500 delivers 98%+ of the 285K's 4K fps. The R5,500 saving on CPU is better invested in a GPU step-up (e.g. RTX 4080 standard to RTX 4080 Super) which gains 15–20 fps at 4K. The 285K is worth it only when workstation multi-threaded tasks matter as much as gaming.
What is the total ZAR price for a Core Ultra 9 285K 4K build at Evetech?
A complete 285K 4K build — with RTX 4080 Super, premium Z890 board, 32 GB DDR5-6400, 1000W PSU, 360mm AIO, and 2 TB NVMe — costs approximately R46,000–R52,000. The 245K equivalent runs R40,000–R44,000 for identical 4K gaming performance.
How many fps does the 285K get at 4K with DLSS Quality enabled?
With DLSS Quality on the RTX 4080 Super: Cyberpunk 2077 — 93–120 fps. Forza Horizon 5 — 100–125 fps. These figures make the 285K + 4080 Super combination a legitimate 4K gaming PC capable of 100+ fps in most titles with DLSS Quality enabled. Without upscaling, target 60–80 fps native in demanding titles.
with the 285K, always use DLSS 3.5 Quality or XeSS Performance mode — upscaling at 4K is near-invisible to the human eye at 27–32 inch viewing distances while adding 30–40 fps, making it the most impactful free performance lever available for any 4K gaming build.