Thief

Thief, the 2014 stealth title, proves to be a light workload for the AMD Ryzen 9 8945HX paired with the NVIDIA GeForce RTX 4070 Mobile. Across every measured resolution and preset, this mobile pairing delivers frame rates well beyond what the game demands, and the data shows the GPU — not the CPU — setting the ceiling at higher resolutions. The following analysis breaks down how each component contributes, which settings deliver the best measured experience, and where this combination ranks among all tested pairings in the database.

CPU Role

The Ryzen 9 8945HX is a 16-core, 32-thread Zen 4 processor built on TSMC's 5 nm node under the Dragon Range codename, with a base clock of 2.50 GHz and a boost clock of 5.40 GHz. It sits in the 95th percentile against all CPUs in the database, with an average benchmark score of 76212 — statistically indistinguishable from rivals such as the Intel Core Ultra 9 285HX (avgScore 76155, deltaPct 0.1), the AMD EPYC Embedded 8224P (deltaPct -0.4), the Ryzen Threadripper PRO 9945WX (deltaPct -0.4), and even the desktop Ryzen 9 9950X3D (deltaPct 0.6). In other words, this mobile chip performs like top-tier silicon, period.

For Thief, none of that throughput is remotely necessary. The game launched in early 2014 and its engine was designed around the CPU capabilities of that era. Even so, the 8945HX's credentials matter for frame-time consistency: the Cinebench R23 single-core score of 6030 (and R20 single-core of 2532, R15 single-core of 607) indicates strong per-thread performance, which is what older DirectX titles depend on most. Thief's main-thread workload benefits from the high boost clock; the PassMark single-thread result of 3907 reinforces that the chip's per-core speed, not its thread count, is what keeps frame delivery smooth.

The multi-core numbers — Cinebench R23 multi at 42713, R20 multi at 17939, R15 multi at 4305, and PassMark multithread at 51405 — are largely idle capacity here. Thief cannot populate 32 threads. Where they help is in headroom: background processes, capture software, and streaming encodes can run without stealing cycles from the game. The 64 MB of L3 cache (with 1 MB L2 per core and 64 KB L1 per core) keeps the working set entirely on-die, and dual-channel DDR5 delivering 83.2 GB/s of memory bandwidth far exceeds anything this game requests. The 55 W TDP is modest for a 16-core part, meaning the chip sustains its clocks in a laptop chassis without the throttling behavior that would degrade frame pacing.

The net effect: in the measured data, the CPU never becomes the limiter. At 1920x1080 Low the pairing reaches 184 FPS, and even at Ultra it holds 101 FPS — figures the GPU renders, but which the 8945HX feeds without hesitation. Every resolution scaling row below confirms the CPU has spare capacity at all times.

GPU Role

The RTX 4070 Mobile is the AD106-based Ada Lovelace part with 4608 shading units, 144 TMUs, 48 ROPs, 36 RT cores, and 144 tensor cores, all on a 188 mm² die with 22,900 million transistors at 121.8M per mm². It carries 8 GB of GDDR6 on a 128-bit bus, giving 256.0 GB/s of bandwidth, and clocks from a 1395 MHz base to a 1695 MHz boost with memory at 16 Gbps effective. Its peak FP32 throughput is 15.62 TFLOPS, pixel rate 81.36 GPixel/s, and texture rate 244.1 GTexel/s. The card sits in the 73rd percentile of all GPUs with an average benchmark score of 27435 — effectively tied with the Radeon RX 6700 XT (deltaPct 0), a hair behind the RTX 3090 (deltaPct -0.5) and Radeon Pro Vega 20 (deltaPct -1.5), and ahead of the RTX PRO 4000 Blackwell (deltaPct 1.1).

Against a 2014 game, that is enormous surplus capability. Thief was built for hardware several generations older, targeting DirectX 11-class features. The 4070 Mobile's API support — DirectX 12 Ultimate (12_2), Vulkan 1.4, OpenGL 4.6 — covers the game with generations of overhead to spare. The PassMark G3D score of 19587 and GPU compute score of 8399 describe a chip far beyond Thief's requirements, and the measured frame rates confirm it: 126 FPS at 1440p Low, 96 FPS at 1440p Medium with a minimum of 82, and 70 FPS even at 4K Ultra-adjacent settings.

The 8 GB VRAM buffer is the one spec worth watching at 3840x2160. Thief's texture footprint predates 4K-era asset sizes, so 8 GB is comfortably sufficient here — the 4K Medium row sustains an average of 56 FPS with a minimum of 48, showing no evidence of memory pressure stalls. The 115 W TDP and PCIe 4.0 x8 bus interface are typical mobile constraints, but neither binds a game this old; the x8 link carries far less data than Thief generates. The relevant takeaway from the GPU data is directional: frame rates fall as resolution rises and as the preset climbs from Low to Ultra, which is exactly the signature of a GPU-limited (rather than CPU-limited) profile, and the RTX 4070 Mobile handles every step of that ladder without dropping below playable thresholds.

Settings Recommendations

The measured rows make the recommendation straightforward, resolution by resolution.

At 1920x1080, Ultra is the clear choice. It averages 101 FPS against 106 FPS at High — a difference of 5 FPS, roughly a 5 percent cost for the maximum image quality tier. Low's 184 FPS and Medium's 140 FPS are impressive, but a stealth game like Thief gains nothing perceptible from frame rates beyond the triple-digit mark once you're already past 100. Take the visual fidelity.

At 2560x1440, the same logic holds with slightly more cost. Ultra averages 70 FPS versus 73 FPS at High — again only a 3 FPS gap. Medium sits at 96 FPS with a floor of 82 and a ceiling of 110, making it the pick for players who prefer high refresh rates, but 70 FPS average at Ultra is entirely comfortable for a slow-paced stealth title. High or Ultra both make sense; the data shows Ultra costs almost nothing over High.

At 3840x2160, the calculus changes. Ultra manages only 41 FPS and High 43 FPS — both below the 48 FPS minimum recorded at Medium, which itself averages 56 FPS. Medium at 4K is the sweet spot: it delivers a frame-rate range of 48 to 65, which is fluid for Thief's methodical pace, while preserving the resolution's image clarity. Low at 74 FPS is available for players chasing frame rates on a 4K panel, but the visual cost is steep at that resolution. The recommendation: Medium at 4K, High or Ultra at 1440p and 1080p.

FAQ

Q: Can the Ryzen 9 8945HX + RTX 4070 Mobile run Thief at 4K?

A: Yes. At 3840x2160 Medium the pairing averages 56 FPS with a minimum of 48 and a maximum of 65. Even Ultra holds a 41 FPS average, though Medium is the better experience.

Q: Which settings deliver over 100 FPS at 1080p?

A: All of them. Low averages 184 FPS, Medium 140 FPS, High 106 FPS, and Ultra 101 FPS at 1920x1080.

Q: Is the CPU or the GPU the bottleneck in this pairing?

A: The GPU. Frame rates scale down steeply as resolution increases — 184 FPS at 1080p Low versus 74 FPS at 4K Low — which indicates the RTX 4070 Mobile is the limiting component. The 8945HX, in the 95th percentile of all CPUs, never constrains Thief.

Q: How does the RTX 4070 Mobile compare to rival GPUs in the database?

A: Its average score of 27435 places it dead even with the Radeon RX 6700 XT (deltaPct 0), marginally behind the RTX 3090 (-0.5 percent) and Radeon Pro Vega 20 (-1.5 percent), and ahead of the RTX PRO 4000 Blackwell (+1.1 percent). It sits in the 73rd percentile of all GPUs.

Q: Is 8 GB of VRAM enough for Thief?

A: More than enough. Thief's assets predate modern high-resolution texture packs, and the measured 4K rows — including 56 FPS at Medium with a 48 FPS minimum — show no sign of memory saturation.

Q: How does the 8945HX stack up against comparable CPUs?

A: With an average score of 76212, it is within one percent of the Intel Core Ultra 9 285HX (0.1), AMD EPYC Embedded 8224P (-0.4), Ryzen Threadripper PRO 9945WX (-0.4), and Ryzen 9 9950X3D (0.6) — elite company for a mobile part.

Resolution Scaling

The scaling data tells a clean story. Holding the Low preset constant: 184 FPS at 1920x1080, 126 FPS at 2560x1440, and 74 FPS at 3840x2160. That is a 31.5 percent drop from 1080p to 1440p, and a further 41 percent drop from 1440p to 4K — an overall 60 percent decline as pixel count quadruples.

At Medium: 140, 96, and 56 FPS. At High: 106, 73, and 43. At Ultra: 101, 70, and 41. The pattern is identical across every preset — frame rate falls roughly in proportion to the added pixel load. This is the textbook signature of GPU limitation. If the CPU were the constraint, frame rates would plateau as resolution rose; instead they fall steadily, meaning the RTX 4070 Mobile's 4608 shading units and 256 GB/s of memory bandwidth are doing the governing at every step.

Note also that the High-to-Ultra penalty is remarkably small — 5 FPS at 1080p, 3 FPS at 1440p, 2 FPS at 4K — while Low-to-Medium costs 44, 30, and 18 FPS respectively. The heaviest quality tiers in Thief add visual detail that this GPU absorbs almost for free, at least until 4K, where the 43 FPS High and 41 FPS Ultra averages sit below comfortable thresholds for some players. The 1080p numbers, meanwhile, are so high (184 at Low) that the display's refresh rate, not the hardware, becomes the practical ceiling.

Measured FPS Breakdown

All rows below are measured data from this exact pairing.

1920x1080:

• Low — 184 FPS average
• Medium — 140 FPS average (119 min, 161 max)
• High — 106 FPS average
• Ultra — 101 FPS average

2560x1440:

• Low — 126 FPS average
• Medium — 96 FPS average (82 min, 110 max)
• High — 73 FPS average
• Ultra — 70 FPS average

3840x2160:

• Low — 74 FPS average
• Medium — 56 FPS average (48 min, 65 max)
• High — 43 FPS average
• Ultra — 41 FPS average

The Medium rows are the only ones with recorded minimum and maximum values, and they reveal tight frame-rate ranges: a 42 FPS spread at 1080p, 28 FPS at 1440p, and 17 FPS at 4K. Tighter spreads at higher resolution again point to consistent GPU-bound rendering rather than CPU-induced variance. The minimums — 119 at 1080p, 82 at 1440p, 48 at 4K — never approach unplayable territory in a stealth game where player reaction pacing is measured rather than twitch-driven.

How This Combo Ranks

Within Thief specifically, this pairing ranks 1876 out of 3720 tested combinations — almost exactly the midpoint, slightly below the median. That placement deserves context. It does not mean the hardware is mediocre; the 8945HX is 95th-percentile CPU silicon and the 4070 Mobile is 73rd-percentile GPU silicon. It means Thief's ranking table is dominated by pairings that exploit the game's light engine with brute force, and rank order in such an old title compresses heavily at the top, where dozens of combinations post similar high frame rates.

The measured numbers support this reading: 101 FPS at 1080p Ultra and 70 FPS at 1440p Ultra are strong absolute results for a laptop pairing, but Thief is a game where a large share of tested hardware also clears 100 FPS, making rank separation at the top marginal. For a mobile platform — a 55 W CPU and a 115 W GPU sharing a notebook power envelope — ranking in the top half of a 3720-combination field is a solid result, and the practical experience at every tested setting is fluid. Players choosing this hardware for Thief, or for the broader stealth genre it represents, get a combination whose CPU headroom (95th percentile) will outlast the game library and whose GPU comfortably renders this title at 1440p High settings and above.