NVIDIA GeForce GTX TITAN X vs NVIDIA GeForce RTX 4090 Mobile Comparison

NVIDIA GeForce RTX 4090 Mobile and NVIDIA GeForce GTX TITAN X represent two distant generations of GPU design, separated by nearly a decade of architectural evolution. The RTX 4090 Mobile is a 5 nm Ada Lovelace part built for portable devices, while the GTX TITAN X is a 28 nm Maxwell 2.0 desktop card from the GeForce 900 series. The recorded head-to-head data shows the RTX 4090 Mobile winning both shared benchmark tests, with the average benchmark score differential placing it firmly ahead. The database lists the RTX 4090 Mobile at an 84th percentile versus all GPUs, with the GTX TITAN X at the 80th percentile. This analysis steps through the benchmark results, architectural differences, and specification gaps to clarify where each GPU holds an advantage.

Where Each One Wins

The RTX 4090 Mobile wins in every directly comparable benchmark recorded in the database. In OpenCL compute workloads, it delivers a score of 180,831 against the GTX TITAN X’s 41,471, a 336% advantage. In Vulkan graphics workloads, it posts 170,774 versus 49,397, a 245.7% lead. These are not marginal wins; they are category-dominating margins that reflect the generational divide between the two designs.

The GTX TITAN X, by contrast, has no recorded wins in the shared test suite. Its strengths lie elsewhere: it is a dual-slot desktop card with a 250 W TDP, a 600 W suggested PSU, and a 267 mm length, 111 mm height, and 38 mm width. It offers 1x DVI, 1x HDMI 2.0, and 3x DisplayPort 1.2 outputs, making it a physically substantial card for a fixed workstation. The RTX 4090 Mobile is an IGP with no power connectors and portable device dependent display outputs, so it trades physical presence for mobility and efficiency.

The use-case split is therefore clear. The RTX 4090 Mobile dominates computational throughput and modern API support, winning every head-to-head benchmark with overwhelming deltas. The GTX TITAN X retains relevance only as a legacy desktop solution with a higher power ceiling and conventional multi-monitor output options, though its raw performance metrics place it far behind.

Architecture Differences

The two GPUs come from radically different design philosophies. The RTX 4090 Mobile uses the AD103 chip on the Ada Lovelace architecture, built at TSMC’s 5 nm process. It integrates 45,900 million transistors on a 379 mm² die, yielding a transistor density of 121.1M per mm². The GTX TITAN X uses the GM200 chip on Maxwell 2.0, fabricated at 28 nm, with 8,000 million transistors spread across a much larger 601 mm² die, for a density of just 13.3M per mm². The process node difference alone explains a substantial portion of the performance gap.

Core counts diverge sharply. The RTX 4090 Mobile has 9,728 shading units, 304 TMUs, and 112 ROPs, plus 76 ray tracing cores and 304 tensor cores. The GTX TITAN X has 3,072 shading units, 192 TMUs, and 96 ROPs, with no ray tracing or tensor cores at all. The RTX 4090 Mobile’s tensor cores enable features absent from the older card, while its ray tracing cores support hardware-accelerated ray tracing workloads.

Memory architecture also differs. The RTX 4090 Mobile uses 16 GB of GDDR6 on a 256-bit bus, with 576.0 GB/s of bandwidth and an effective memory speed of 18 Gbps. The GTX TITAN X uses 12 GB of GDDR5 on a 384-bit bus, with 336.6 GB/s of bandwidth and 7 Gbps effective. Despite the narrower bus, the RTX 4090 Mobile has significantly higher bandwidth due to faster memory. The GTX TITAN X’s wider bus is insufficient to overcome its older memory technology.

Clock speeds and power profiles reflect the design goals. The RTX 4090 Mobile runs at a base of 1335 MHz and a boost of 1695 MHz, with a TDP of 120 W. The GTX TITAN X runs at 1000 MHz base and 1089 MHz boost, with a TDP of 250 W. The RTX 4090 Mobile achieves far higher performance at half the power draw, proof of the efficiency gains of the 5 nm node.

The API support differs as well. The RTX 4090 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The GTX TITAN X supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. The RTX 4090 Mobile’s DirectX 12 Ultimate support enables features like advanced ray tracing and mesh shaders that the GTX TITAN X cannot access.

Head-to-Head Benchmarks

The database records two head-to-head comparisons, both won decisively by the RTX 4090 Mobile. In Geekbench OpenCL, the RTX 4090 Mobile scores 180,831 against the GTX TITAN X’s 41,471, a delta of 336%. This is a compute-heavy test that stresses raw shading and memory throughput, and the result reflects the RTX 4090 Mobile’s 5 nm node, higher core count, and faster memory subsystem.

In Geekbench Vulkan, the RTX 4090 Mobile posts 170,774 versus 49,397, a 245.7% lead. Vulkan is a low-level graphics API, and the gap here is slightly narrower than in OpenCL, but still overwhelming. The GTX TITAN X’s Maxwell 2.0 architecture can handle Vulkan 1.4, but it lacks the modern features and raw throughput of Ada Lovelace.

The RTX 4090 Mobile also has additional benchmark data in the database: Geekbench OpenCL and Vulkan scores are matched by PassMark results in DirectX 10, 11, 12, and 9, plus G2D, G3D, and GPU compute tests. Its PassMark G3D score is 27,212, and its GPU compute score is 12,347. The GTX TITAN X has only Geekbench Metal, OpenCL, and Vulkan entries, with a Metal score of 18,723, which has no direct RTX 4090 Mobile counterpart. The average benchmark score for the RTX 4090 Mobile is 43,667, against 36,530 for the GTX TITAN X, a gap of roughly 19.5%.

The nearest rivals in the database contextualize these scores. The RTX 4090 Mobile’s average score sits 0.8% above the NVIDIA Quadro M6000, 0.9% above the GeForce RTX 5050 Mobile, and 0.9% above the Quadro M6000 24 GB, while trailing the RTX A6000 by 0.9%. The GTX TITAN X’s average score is effectively tied with the AMD Radeon RX 5300M, 0.7% above the NVIDIA T1000, 1.7% below the AMD Radeon PRO W6400, and 1.9% above the AMD Radeon Pro Duo. These deltas show the RTX 4090 Mobile competing with modern workstation cards, while the GTX TITAN X sits near entry-level modern parts.

The Verdict

The data points to the RTX 4090 Mobile as the clear performance winner across every shared benchmark. Its 336% OpenCL lead and 245.7% Vulkan lead are decisive, and its average benchmark score of 43,667 places it in the 84th percentile of all GPUs, compared to the GTX TITAN X’s 80th percentile and 36,530 average. For compute-heavy workloads, ray tracing, or modern API development, the RTX 4090 Mobile is the only logical choice from these two.

The GTX TITAN X is not without purpose, but its role is limited. It is a dual-slot desktop card with a 250 W TDP, 12 GB of GDDR5, and a 384-bit bus, suitable for legacy systems with PCIe 3.0 slots. Its 80th percentile ranking still puts it above many current entry-level GPUs, as its nearest rivals include the AMD Radeon RX 5300M and NVIDIA T1000. It can handle DirectX 12 (12_1) and Vulkan 1.4 workloads, but without ray tracing or tensor cores, it cannot match the RTX 4090 Mobile’s feature set.

Users with a portable chassis or a preference for modern efficiency should pick the RTX 4090 Mobile, which achieves its performance at 120 W with no power connectors. Users with a desktop workstation that already has a 600 W PSU and needs a legacy Maxwell 2.0 card for compatibility reasons may consider the GTX TITAN X, but the benchmark data shows no scenario where it outpaces the RTX 4090 Mobile. The verdict is unambiguous: the RTX 4090 Mobile wins on performance, efficiency, and modern feature support.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The RTX 4090 Mobile has an average benchmark score of 43,667, while the GTX TITAN X has 36,530.

Q: How large is the OpenCL performance gap between the two?

A: The RTX 4090 Mobile scores 180,831 in Geekbench OpenCL versus 41,471 for the GTX TITAN X, a 336% difference.

Q: Does the GTX TITAN X support ray tracing?

A: No, the GTX TITAN X has no ray tracing cores, while the RTX 4090 Mobile has 76.

Q: What is the memory configuration of each GPU?

A: The RTX 4090 Mobile has 16 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth, and the GTX TITAN X has 12 GB of GDDR5 on a 384-bit bus with 336.6 GB/s bandwidth.

Q: Which GPU consumes less power?

A: The RTX 4090 Mobile has a TDP of 120 W, while the GTX TITAN X has a TDP of 250 W.

Q: What is the production status of each card?

A: The RTX 4090 Mobile is listed as Active, while the GTX TITAN X is End-of-life.

Specification Differences

• Process Node: RTX 4090 Mobile: 5 nm, GTX TITAN X: 28 nm
• Transistors: RTX 4090 Mobile: 45,900 million, GTX TITAN X: 8,000 million
• Die Size: RTX 4090 Mobile: 379 mm², GTX TITAN X: 601 mm²
• Transistor Density: RTX 4090 Mobile: 121.1M / mm², GTX TITAN X: 13.3M / mm²
• Base Clock: RTX 4090 Mobile: 1335 MHz, GTX TITAN X: 1000 MHz
• Boost Clock: RTX 4090 Mobile: 1695 MHz, GTX TITAN X: 1089 MHz
• Memory Clock: RTX 4090 Mobile: 2250 MHz, 18 Gbps effective, GTX TITAN X: 1753 MHz, 7 Gbps effective
• Memory Size: RTX 4090 Mobile: 16 GB, GTX TITAN X: 12 GB
• Memory Type: RTX 4090 Mobile: GDDR6, GTX TITAN X: GDDR5
• Memory Bus Width: RTX 4090 Mobile: 256 bit, GTX TITAN X: 384 bit
• Memory Bandwidth: RTX 4090 Mobile: 576.0 GB/s, GTX TITAN X: 336.6 GB/s
• Shading Units: RTX 4090 Mobile: 9728, GTX TITAN X: 3072
• TMUs: RTX 4090 Mobile: 304, GTX TITAN X: 192
• ROPs: RTX 4090 Mobile: 112, GTX TITAN X: 96
• Ray Tracing Cores: RTX 4090 Mobile: 76, GTX TITAN X: None
• Tensor Cores: RTX 4090 Mobile: 304, GTX TITAN X: None
• Pixel Rate: RTX 4090 Mobile: 189.8 GPixel/s, GTX TITAN X: 104.5 GPixel/s
• Texture Rate: RTX 4090 Mobile: 515.3 GTexel/s, GTX TITAN X: 209.1 GTexel/s
• FP32 Performance: RTX 4090 Mobile: 32.98 TFLOPS, GTX TITAN X: 6.691 TFLOPS
• FP16 Performance: RTX 4090 Mobile: 32.98 TFLOPS (1:1), GTX TITAN X: None
• TDP: RTX 4090 Mobile: 120 W, GTX TITAN X: 250 W
• Slot Width: RTX 4090 Mobile: IGP, GTX TITAN X: Dual-slot
• Power Connectors: RTX 4090 Mobile: None, GTX TITAN X: 1x 6-pin + 1x 8-pin
• Suggested PSU: RTX 4090 Mobile: None, GTX TITAN X: 600 W
• Bus Interface: RTX 4090 Mobile: PCIe 4.0 x16, GTX TITAN X: PCIe 3.0 x16
• Display Outputs: RTX 4090 Mobile: Portable Device Dependent, GTX TITAN X: 1x DVI, 1x HDMI 2.0, 3x DisplayPort 1.2
• DirectX Support: RTX 4090 Mobile: 12 Ultimate (12_2), GTX TITAN X: 12 (12_1)
• Release Date: RTX 4090 Mobile: 2023-01-02, GTX TITAN X: 2015-03-16
• Production Status: RTX 4090 Mobile: Active, GTX TITAN X: End-of-life