Thief

The pairing of an Intel Core i3-12100F with an NVIDIA GeForce RTX 4090 is wildly unbalanced on paper, but the benchmark data shows Thief simply doesn't care. This 2014 stealth title from Eidos Montreal runs at high frame rates across every tested resolution and preset, and the modest quad-core Alder Lake chip never becomes the bottleneck the spec sheet suggests it should be. This combo ranks 485th out of 3720 tested configurations for this game — strong, but far from the top of the chart, which reflects the CPU's ceiling rather than any GPU limitation. All numbers below are measured, not estimated.

Measured FPS Breakdown

At 1920x1080, the RTX 4090 pushes Thief to frame rates that are effectively capped by the game engine itself. Low averages 169 FPS, Medium averages 153 FPS with a minimum of 130 and a maximum of 175, High averages 138 FPS, and Ultra averages 136 FPS. Note how little the frame rate moves as image quality climbs from Low to Ultra — a 169-to-136 spread across the entire preset range. That flatness is the signature of a game that is either CPU-limited or engine-limited at this resolution, and no GPU upgrade would change it.

At 2560x1440, frame rates stay remarkably high: Low averages 149 FPS, Medium averages 135 FPS with a minimum of 114 and a maximum of 155, High averages 122 FPS, and Ultra averages 120 FPS. Again, the gap between Medium and Ultra is only 15 FPS on average. The 33-frame drop going from 1080p Low to 1440p Low indicates the GPU is beginning to do real work at this resolution, but only just.

At 3840x2160, the numbers finally show the display doing some lifting. Low averages 125 FPS, Medium averages 110 FPS with a minimum of 94 and a maximum of 127, High averages 84 FPS, and Ultra averages 80 FPS. Even here, the worst result in the entire dataset — 4K Ultra at 80 FPS average — clears the 60 FPS playable threshold by 20 frames. The one measured minimum at this resolution, 94 FPS on Medium, never comes close to a stutter risk.

The consistent pattern across all twelve configurations: min/max data was captured only for Medium presets, and in every case the minimum sits comfortably above the playable threshold. There is no setting in this game, at any tested resolution, that threatens playability on this hardware.

Similar Performance Alternatives

If the goal is replicating this Thief experience, the CPU side has several near-identical substitutes. The i3-12100F sits at the 68th percentile of all CPUs with an average benchmark score of 13494, and its closest rivals confirm that tier: the Intel Core 3 N355 averages 13492 (a dead-even 0% delta), the Intel Core i5-9500 averages 13452 (0.3% behind), the Intel Core 5 120UL averages 13594 (0.7% ahead), and the Intel Core i7-1250U averages 13351 (1.1% behind). Any of these processors would produce effectively indistinguishable Thief results — Thief's workload is light enough that single-thread capability matters more than thread count, and the i3-12100F's strong single-thread numbers (1674 in Cinebench R23 single-core, 893 in 3DMark single-thread) carry the game comfortably. The 3DMark scaling tells the story: the chip scores 2859 on 4 threads, 4026 on 8 threads, and 4023 at max threads, meaning its full 8-thread throughput is fully available to Thief.

On the GPU side, the RTX 4090 occupies the 88th percentile of all GPUs with an average benchmark score of 60347. Its listed nearest rivals are interesting because they're professional parts: the Intel Arc Pro A60 at 60326 (0% delta), the AMD Radeon Pro Vega 48 at 60140 (0.3% behind), the AMD Radeon Pro W6600M at 61896 (2.5% ahead), and the AMD Radeon PRO V710 at 58657 (2.9% behind). By average benchmark score, those cards would deliver Thief frame rates within a few percent of what's measured here. In practice, for a game this old and light, far weaker GPUs than any of these also clear 60 FPS — the measured 4K Ultra average of 80 FPS leaves an enormous margin, so the GPU tier can drop substantially before Thief becomes unplayable. The RTX 4090's 82.58 TFLOPS of FP32 and 1.01 TB/s of memory bandwidth are dramatically underutilized by a 2014 DirectX-era title.

CPU and GPU Roles

The scaling data makes the role assignment unambiguous. From 1080p to 1440p at Low settings, the average drops from 169 to 149 FPS — roughly a 12% decline for a 78% increase in pixels. From 1440p to 4K at Low, it drops further from 149 to 125 FPS. That shallow slope means the GPU is rarely the limiter; when a GPU is truly saturated, quadrupling the pixel count from 1080p to 4K cuts frame rates far more dramatically than the 169-to-125 drop observed here.

The CPU is the governing factor at lower resolutions. Look at the preset scaling at 1080p: Low to Ultra spans only 169 to 136 FPS. If the RTX 4090 were the constraint, Ultra at 1080p would run dramatically slower than Low — instead, the frame rate barely moves, which points to a fixed CPU/engine ceiling in the low-to-mid 100s. The i3-12100F's single-thread score of 1674 in Cinebench R23 is strong for its class, and that per-core speed is what Thief responds to, not core count. Its multi-thread ceiling (11860 in R23 multi-core, 14015 in PassMark multithread) is modest by modern standards, but Thief never approaches it.

At 4K, the balance tips toward the GPU: the High preset drops to 84 FPS and Ultra to 80 FPS at 3840x2160, versus 122 and 136 respectively at 1440p and 1080p. Even so, the 4K numbers stay high enough that neither component is meaningfully stressed. For this game on this pairing, the honest summary is: CPU-limited below 4K, GPU-influenced at 4K, and GPU-limited nowhere.

The Verdict

Yes — this PC runs Thief, emphatically. The verdict data confirms that at every tested resolution (1920x1080, 2560x1440, and 3840x2160), all four presets — Low, Medium, High, and Ultra — clear the 60 FPS playable threshold. There is not a single failing configuration in the dataset. The best playable settings are Ultra at 1080p (136 FPS average), Ultra at 1440p (120 FPS average), and Ultra at 4K (80 FPS average). The combo's rank of 485 out of 3720 tested configurations places it in the top tier of results for this game, though the rank is tempered by the CPU's ceiling — the game tops out well below what the RTX 4090 could deliver with a stronger processor. For a stealth game where consistent frame pacing matters during tense sneaking sequences, the measured Medium minimums of 130, 114, and 94 FPS at 1080p, 1440p, and 4K respectively mean frame drops are a non-issue.

Best Settings per Resolution

• 3840x2160 (4K): Ultra, averaging 80 FPS. Even the most demanding preset stays 20 frames above the threshold.
• 2560x1440: Ultra, averaging 120 FPS — a 40-frame cushion over the threshold and a 50% higher average than at 4K.
• 1920x1080: Ultra, averaging 136 FPS. The difference between Ultra and Low at this resolution is just 33 frames (136 vs 169), so there is no reason to sacrifice image quality.

In all three cases, Ultra is the answer. The general rule for this pairing: max out every setting at any resolution up to 4K, and the game still has headroom.

FAQ

Q: Can the i3-12100F + RTX 4090 run Thief at 60 FPS?

A: Yes, at every tested resolution and preset. The lowest average in the entire dataset is 80 FPS at 4K Ultra, and the lowest measured minimum is 94 FPS at 4K Medium.

Q: Does the Core i3-12100F bottleneck the RTX 4090 in Thief?

A: At 1080p and 1440p, effectively yes — the game tops out around 169 FPS at 1080p Low, and the tiny spread between Low and Ultra presets (169 to 136 FPS) indicates a CPU/engine ceiling rather than GPU limits. At 4K the GPU becomes the larger factor, but frame rates remain far above the playable threshold everywhere.

Q: What FPS does Thief get at 4K on this build?

A: Averages of 125 FPS on Low, 110 FPS on Medium (minimum 94, maximum 127), 84 FPS on High, and 80 FPS on Ultra.

Q: Which CPUs perform similarly to the i3-12100F?

A: The Intel Core 3 N355 (0% score delta), Intel Core i5-9500 (0.3% behind), Intel Core 5 120UL (0.7% ahead), and Intel Core i7-1250U (1.1% behind). All would deliver near-identical Thief performance.

Q: How does this combo rank for Thief compared to other hardware pairings?

A: It ranks 485th out of 3720 tested combinations — strong, but limited by the CPU side, since the RTX 4090 sits in the 88th percentile of all GPUs while the CPU sits in the 68th percentile of all CPUs.

Q: Is High or Ultra worth it over Medium settings?

A: Yes. The cost is small — Medium to Ultra costs 17 FPS at 1080p (153 to 136), 15 FPS at 1440p (135 to 120), and 30 FPS at 4K (110 to 80) — and every preset clears 60 FPS at every resolution, so Ultra is the practical default.