Thief

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen 9 5950X is a 16-core, 32-thread processor built on the Zen 3 architecture (Vermeer codename) using TSMC's 7 nm process. Its base clock of 3.40 GHz and boost clock of 4.90 GHz give it strong single-threaded performance, which is critical for a 2014 stealth title like Thief that was designed long before multi-core scaling became standard practice. The CPU's 64 MB of L3 cache and dual-channel DDR4 memory support at 51.2 GB/s provide ample bandwidth for feeding the GPU in this older game engine.

Benchmark data places this CPU in the 93rd percentile among all processors, with an average benchmark score of 49062. Its nearest rival, the Intel Core i5-14600K, scores 49166, a delta of -0.2%, meaning the Ryzen 9 5950X is effectively performance-equivalent despite having more cores. The Intel Core i5-14600KF is 0.6% ahead, while the AMD EPYC 4345P is 1.1% ahead, and the Intel Xeon Gold 5318H trails by 0.7%. These margins are negligible in real-world gaming.

Synthetic single-thread scores support strong per-core performance: 3DMark single-thread scores 944, Cinebench R15 single-core scores 549, Cinebench R20 single-core scores 2289, Cinebench R23 single-core scores 5450, and Geekbench single-core scores 2211. Multi-threaded results are also strong, with Cinebench R23 multi-core at 38607 and PassMark multi-thread at 45424. However, Thief's engine was built for the era of quad-core CPUs, so the 16-core configuration is unlikely to be fully utilized — the data shows this is a CPU whose headroom far exceeds what this game demands, meaning the bottleneck will shift to the GPU in most scenarios, especially at higher resolutions.

FAQ

Q: How does the Ryzen 9 5950X compare to its closest rivals in overall CPU performance?

A: The Ryzen 9 5950X scores 49062 on average, placing it 93rd percentile among all CPUs. It trails the Intel Core i5-14600K by only 0.2% (49166 vs. 49062), the Intel Core i5-14600KF by 0.6% (49367), and the AMD EPYC 4345P by 1.1% (49595), while leading the Intel Xeon Gold 5318H by 0.7% (48698).

Q: What is the CPU's multi-threaded performance in Cinebench R23?

A: The Ryzen 9 5950X scores 38607 in Cinebench R23 multi-core, which is consistent with its 16-core, 32-thread configuration. Its single-core score in the same test is 5450, showing strong per-thread performance for older game engines that rely on fewer threads.

Q: Does the CPU's memory bandwidth matter for Thief?

A: The Ryzen 9 5950X supports dual-channel DDR4 with 51.2 GB/s of memory bandwidth. Given that Thief is a 2014 title, the game's memory demands are modest, and this bandwidth is more than sufficient to avoid memory-related bottlenecks at any of the tested settings.

Q: How does the CPU rank among all processors?

A: The Ryzen 9 5950X is in the 93rd percentile of all CPUs, with an average benchmark score of 49062. This places it in the top tier of desktop processors, though the game's performance will still be limited by the GPU at higher resolutions.

Q: What is the CPU's launch MSRP?

A: The launch MSRP for the AMD Ryzen 9 5950X is $799.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data reveals a clear pattern of GPU limitation as resolution increases. At 1080p with High settings, the combo delivers 138.4 FPS. Moving to 1440p High drops this to 103.9 FPS, a 24.9% reduction. At 4K High, the average falls to 60.1 FPS, which is 56.6% lower than the 1080p result. This steep decline as pixel count rises is the signature of a GPU-bound scenario — the Ryzen 9 5950X has ample headroom, but the RTX 4070 must work progressively harder to fill more pixels.

The same trend holds across all settings. At Low settings, 1080p yields 170.3 FPS, 1440p yields 149.2 FPS, and 4K yields 105.5 FPS. The 4K Low result is 38.1% below the 1080p Low result. At Ultra settings, 1080p delivers 139.6 FPS, 1440p delivers 96.7 FPS, and 4K delivers 57.5 FPS — a 58.8% drop from 1080p to 4K. This widening gap at higher settings confirms that the GPU's rendering workload, not CPU throughput, dictates performance ceilings in Thief.

Notably, the 1080p results across settings show relatively small variation: Low at 170.3 FPS, Medium at 156.5 FPS, High at 138.4 FPS, and Ultra at 139.6 FPS. The fact that Ultra is nearly identical to High (139.6 vs. 138.4) suggests the game's Ultra preset adds effects that the RTX 4070 can handle without much additional cost at this resolution. In contrast, at 4K the spread is large — from 105.5 FPS at Low down to 57.5 FPS at Ultra — indicating that the GPU's fill rate and shading capacity become the primary constraint as resolution scales.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

At 1920x1080, the RTX 4070 paired with the Ryzen 9 5950X produces the following average FPS: Low settings run at 170.3 FPS, Medium at 156.5 FPS, High at 138.4 FPS, and Ultra at 139.6 FPS. The Ultra result being slightly higher than High is within measurement variance but shows the game's Ultra preset does not impose a significant extra cost at this resolution.

At 2560x1440, the averages are: Low at 149.2 FPS, Medium at 133.2 FPS, High at 103.9 FPS, and Ultra at 96.7 FPS. The drop from High to Ultra is only 6.9%, while the drop from Low to Ultra is 35.2%.

At 3840x2160, the averages are: Low at 105.5 FPS, Medium at 76.8 FPS, High at 60.1 FPS, and Ultra at 57.5 FPS. The gap between Medium and High is 21.8%, while High to Ultra is only 4.3%. This compression at the top end suggests that the Ultra preset's additional features have diminishing returns at 4K, where raw pixel throughput dominates.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 4070 is built on the Ada Lovelace architecture with a 5 nm TSMC process, featuring 35,800 million transistors on a 294 mm² die. Its base clock is 1920 MHz with a boost clock of 2475 MHz, and memory runs at 1313 MHz (21 Gbps effective). The GPU has 12 GB of GDDR6X memory on a 192-bit bus, delivering 504.2 GB/s of bandwidth.

For Thief, a game released in 2014, the RTX 4070's 12 GB VRAM is far more than the game's texture requirements, so memory capacity is not a limiting factor. The 504.2 GB/s bandwidth, however, becomes relevant at 4K where the frame buffer demands are higher. The GPU's 5888 shading units, 184 TMUs, and 64 ROPs give it a pixel rate of 158.4 GPixel/s and texture rate of 455.4 GTexel/s, which explains its ability to maintain 60.1 FPS at 4K High settings.

The GPU scores 26927 in PassMark G3D and 14720 in PassMark GPU Compute, placing it in the 81st percentile of all GPUs. Its nearest rival, the AMD Radeon RX Vega 56, scores 37507 (0.6% ahead), while the NVIDIA GeForce MX570 A is 1.9% ahead at 38008, and the NVIDIA GeForce RTX 4080 Mobile is 2.2% ahead at 38135. The AMD Radeon RX 5300M trails by 2.5% at 36371. These deltas are small, indicating the RTX 4070 sits in a crowded performance band.

The data shows that Thief's performance at 1080p and 1440p is solidly GPU-driven, with the RTX 4070 delivering playable-to-high frame rates across all settings. At 4K, the GPU becomes the clear bottleneck, with Ultra settings dropping to 57.5 FPS — still playable but close to the edge of 60 FPS. The GPU's 12 GB VRAM and 504.2 GB/s bandwidth are sufficient for this title, as the game's 2014-era assets do not stress modern memory capacities. The RTX 4070's DirectX 12 Ultimate support and Vulkan 1.4 compatibility ensure full API coverage for this older title, which primarily uses DirectX 11 paths.