NVIDIA GeForce GTX TITAN X vs NVIDIA GeForce RTX 4080 Mobile Comparison

The NVIDIA GeForce RTX 4080 Mobile and the NVIDIA GeForce GTX TITAN X represent two very different eras of GPU design, separated by nearly a decade of architectural evolution. The data shows a decisive victory for the modern mobile part in the available head-to-head comparisons, but the older desktop card still holds its own in specific legacy scenarios. This analysis breaks down the benchmark results, architectural shifts, and practical implications of choosing between these two very different NVIDIA offerings.

Head-to-Head Benchmarks

The most striking finding in the data is the sheer magnitude of the RTX 4080 Mobile's victory in the two shared benchmark tests. In the Geekbench OpenCL test, the RTX 4080 Mobile scores 159,575, which is a 284.8% improvement over the GTX TITAN X's score of 41,471. This is not a marginal generational gain; it is a complete and utter rout, indicating that the newer architecture is fundamentally more efficient at executing the compute workloads that OpenCL measures.

The Vulkan results paint a similarly lopsided picture, though the gap narrows slightly. The RTX 4080 Mobile achieves a score of 145,807, while the GTX TITAN X manages 49,397. This represents a 195.2% lead for the RTX 4080 Mobile. While both figures demonstrate a massive performance advantage, the smaller delta in Vulkan suggests that the newer API helps the older Maxwell architecture close some of the gap, likely due to better driver-level optimizations for modern graphics interfaces on the older hardware.

It is important to note that these two tests are the only direct comparisons available in the data. The GTX TITAN X also has a Geekbench Metal score of 18,723, but the RTX 4080 Mobile has no corresponding Metal result, so it cannot be compared. The RTX 4080 Mobile, on the other hand, has a range of PassMark scores (e.g., 24,926 in G3D and 11,191 in GPU Compute) that the GTX TITAN X lacks. This asymmetry in test coverage means the head-to-head comparison is limited to compute-oriented APIs, but the results are so one-sided that the overall performance hierarchy is clear.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The RTX 4080 Mobile has a higher average benchmark score of 38,135, compared to the GTX TITAN X's 36,530. This places the RTX 4080 Mobile in the 81st percentile of all GPUs, while the GTX TITAN X sits just below at the 80th percentile.

Q: How does the RTX 4080 Mobile compare to its nearest rivals?

A: The RTX 4080 Mobile's average score is nearly identical to that of the NVIDIA GeForce MX570, which is only 0.4% lower, and the RTX 5080 Mobile, which is 0.6% lower. It is also 1.3% higher than both the RTX 4070 and the Tesla P4.

Q: Is the GTX TITAN X competitive with any modern GPUs?

A: Yes, its average score of 36,530 places it in the same performance tier as the AMD Radeon RX 5300M, which has a delta of 0%, and the NVIDIA T1000, which is 0.7% slower. It also edges out the AMD Radeon PRO W6400 by 1.7%.

Q: What are the key API support differences?

A: The RTX 4080 Mobile supports DirectX 12 Ultimate (12_2), while the GTX TITAN X is limited to DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4.

Q: Which GPU has a higher pixel fill rate?

A: The RTX 4080 Mobile has a higher pixel rate of 133.2 GPixel/s, compared to the GTX TITAN X's 104.5 GPixel/s. This suggests a potential advantage in fill-rate-bound scenarios, though the TITAN X has more ROPs.

Q: What is the production status of each GPU?

A: The RTX 4080 Mobile is listed as "Active" in production, while the GTX TITAN X is "End-of-life."

Architecture Differences

The architectural gulf between these two GPUs is vast. The RTX 4080 Mobile is built on the Ada Lovelace architecture using a 5 nm process at TSMC, while the GTX TITAN X uses the Maxwell 2.0 architecture on a 28 nm process. This process node difference is the single most important factor driving the performance gap, as it allows the newer chip to pack far more transistors into a smaller space. The RTX 4080 Mobile's AD104 chip contains 35,800 million transistors on a 294 mm² die, resulting in a density of 121.8M / mm². In contrast, the GTX TITAN X's GM200 chip has only 8,000 million transistors on a much larger 601 mm² die, giving it a density of just 13.3M / mm².

This density advantage translates directly into compute resources. The RTX 4080 Mobile has 7,424 shading units, 232 TMUs, and 80 ROPs, while the GTX TITAN X has 3,072 shading units, 192 TMUs, and 96 ROPs. The newer card also introduces dedicated hardware that the older card completely lacks: 58 RT cores and 232 tensor cores. These are essential for hardware-accelerated ray tracing and AI-based features like DLSS, which the GTX TITAN X cannot utilize. The FP32 compute throughput tells the story of raw power: the RTX 4080 Mobile delivers 24.72 TFLOPS, whereas the GTX TITAN X manages only 6.691 TFLOPS.

Memory architecture also differs significantly. The RTX 4080 Mobile uses 12 GB of GDDR6 on a 192-bit bus, yielding a bandwidth of 432.0 GB/s. The GTX TITAN X also has 12 GB, but of GDDR5, on a wider 384-bit bus, which results in lower bandwidth of 336.6 GB/s. The newer card's higher bandwidth compensates for its narrower bus, and the faster 18 Gbps effective memory speed is a massive upgrade over the older card's 7 Gbps. The TITAN X's memory clock is 1753 MHz, while the RTX 4080 Mobile runs at 2250 MHz.

The Verdict

The choice between these two GPUs is not a difficult one from a pure performance standpoint; the data is overwhelmingly in favor of the RTX 4080 Mobile. It offers more than triple the compute performance in OpenCL and nearly triple in Vulkan, all within a power envelope of 110 W, compared to the GTX TITAN X's 250 W. The RTX 4080 Mobile is also a current, active product, while the GTX TITAN X is end-of-life.

However, the GTX TITAN X is not without merit. Its 12 GB of memory is equal to the newer card, and its 96 ROPs are more numerous than the RTX 4080 Mobile's 80. For a user building a legacy system or requiring a dual-slot desktop card with specific display outputs (1x DVI, 1x HDMI 2.0, 3x DisplayPort 1.2), the TITAN X is a viable option. It also has a launch MSRP of 999 USD, which is a piece of historical data, but it does not change the fact that its architecture is over a decade old.

For anyone building a modern system, the RTX 4080 Mobile is the clear choice. It is faster, more feature-rich, and more power-efficient. For anyone specifically seeking a classic Maxwell-era card for a retro build or a specific compatibility need, the GTX TITAN X remains a capable, high-end option from its time.

Specification Differences

| Specification | NVIDIA GeForce RTX 4080 Mobile | NVIDIA GeForce GTX TITAN X |

| :--- | :--- | :--- |

| Architecture | Ada Lovelace | Maxwell 2.0 |

| Process Node | 5 nm (TSMC) | 28 nm (TSMC) |

| Transistors | 35,800 million | 8,000 million |

| Die Size | 294 mm² | 601 mm² |

| Base Clock | 1290 MHz | 1000 MHz |

| Boost Clock | 1665 MHz | 1089 MHz |

| Memory Type | GDDR6 | GDDR5 |

| Memory Bus Width | 192 bit | 384 bit |

| Memory Bandwidth | 432.0 GB/s | 336.6 GB/s |

| Shading Units | 7424 | 3072 |

| TMUs | 232 | 192 |

| ROPs | 80 | 96 |

| RT Cores | 58 | None |

| Tensor Cores | 232 | None |

| FP32 Compute | 24.72 TFLOPS | 6.691 TFLOPS |

| TDP | 110 W | 250 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | None | 1x 6-pin + 1x 8-pin |

| Suggested PSU | None | 600 W |

| Bus Interface | PCIe 4.0 x16 | PCIe 3.0 x16 |

| Display Outputs | Portable Device Dependent | 1x DVI, 1x HDMI 2.0, 3x DisplayPort 1.2 |

| DirectX | 12 Ultimate (12_2) | 12 (12_1) |

| Release Date | 2023-01-02 | 2015-03-16 |

| Production Status | Active | End-of-life |

Where Each One Wins

The RTX 4080 Mobile wins in virtually every measurable modern compute scenario. Its OpenCL and Vulkan scores are, respectively, 284.8% and 195.2% higher than the GTX TITAN X. This makes it the obvious choice for any workload involving modern APIs, ray tracing, or AI-accelerated features. Its higher texture rate of 386.3 GTexel/s, compared to 209.1 GTexel/s, also suggests a significant advantage in texture-heavy gaming and 3D rendering. The lower TDP of 110 W means it can be implemented in thin-and-light laptops, whereas the TITAN X's 250 W TDP requires a desktop power supply and dual-slot cooling.

The GTX TITAN X has very few wins in the data. Its only advantages are in raw ROP count (96 vs. 80) and the width of its memory bus (384-bit vs. 192-bit). While its pixel rate is lower at 104.5 GPixel/s, the higher ROP count might offer a marginal benefit in specific, older fill-rate-bound workloads that do not scale with shader complexity. Its legacy display outputs (DVI, HDMI 2.0, DisplayPort 1.2) are a practical win for users with older monitors. Ultimately, the GTX TITAN X is a product of its time, and its strengths are confined to legacy compatibility and a few niche hardware specifications. The RTX 4080 Mobile is the superior GPU in all meaningful performance categories.