NVIDIA GeForce GTX TITAN Z vs NVIDIA GeForce RTX 4070 Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance advantage for the NVIDIA GeForce RTX 4070 Mobile in the two benchmark tests where both products have results. In Geekbench OpenCL, the RTX 4070 Mobile scores 109,197 points, while the GTX TITAN Z scores 25,465 points. This translates to a 328.8% advantage for the mobile part, a margin that places them in entirely different performance tiers. The Geekbench Vulkan test tells an even more one-sided story: the RTX 4070 Mobile reaches 108,367 points against 22,006 points for the TITAN Z, a 392.4% lead.

These are not marginal wins. The RTX 4070 Mobile more than quadruples the TITAN Z’s Vulkan output, and the OpenCL result is over four times higher as well. The database’s average benchmark scores reinforce this gap: the RTX 4070 Mobile averages 27,435 across all recorded tests, while the TITAN Z averages 23,736. That puts the RTX 4070 Mobile at the 73rd percentile of all GPUs, while the TITAN Z sits at the 69th percentile. The delta is not enormous in aggregate terms, but the head-to-head results show where the real separation lies: modern API workloads are overwhelmingly faster on the Ada Lovelace architecture.

The TITAN Z’s nearest rivals in the database include the NVIDIA GeForce RTX 3080 Mobile (average score 23,628, delta 0.5%) and the AMD Radeon RX 9070 (average score 23,877, delta -0.6%). The RTX 4070 Mobile, by contrast, sits alongside the AMD Radeon RX 6700 XT (average score 27,425, delta 0%) and the NVIDIA GeForce RTX 3090 (average score 27,565, delta -0.5%). This placement indicates that the mobile chip competes with desktop-class cards from the previous generation, while the TITAN Z is bracketed by mid-range mobile parts from the RTX 30-series.

Architecture Differences

The two GPUs come from different eras of NVIDIA’s design philosophy. The RTX 4070 Mobile uses the AD106 chip built on Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. It integrates 22,900 million transistors on a die size of 188 mm², yielding a transistor density of 121.8 million per mm². The GTX TITAN Z uses the GK110B chip under the Kepler architecture, built on a 28 nm process, also at TSMC. That chip packs 7,080 million transistors across a much larger 561 mm² die, resulting in a density of just 12.6 million per mm².

The memory subsystems diverge sharply. The RTX 4070 Mobile comes with 8 GB of GDDR6 memory on a 128-bit bus, delivering 256.0 GB/s of bandwidth. The TITAN Z offers 6 GB of GDDR5 on a 384-bit bus, which provides 336.0 GB/s of bandwidth. The TITAN Z has a wider bus and higher raw bandwidth, but the RTX 4070 Mobile’s newer memory technology operates at a higher effective speed: 16 Gbps versus 7 Gbps. The clock speeds also favor the newer part: the RTX 4070 Mobile runs at a base of 1395 MHz and boosts to 1695 MHz, while the TITAN Z is at 705 MHz base and 876 MHz boost.

Compute resources are organized very differently. The RTX 4070 Mobile has 4608 shading units, 144 texture mapping units, 48 ROPs, 36 ray tracing cores, and 144 tensor cores. The TITAN Z has 2880 shading units, 240 TMUs, and 48 ROPs, but it has no ray tracing cores and no tensor cores. The pixel rate for the RTX 4070 Mobile is 81.36 GPixel/s versus 52.56 GPixel/s for the TITAN Z. Texture rate stands at 244.1 GTexel/s for the mobile chip versus 210.2 GTexel/s for the TITAN Z. FP32 compute is a clear win for the newer part: 15.62 TFLOPS versus 5.046 TFLOPS. The RTX 4070 Mobile also supports FP16 at 15.62 TFLOPS with a 1:1 ratio, while the TITAN Z has no recorded FP16 capability.

The feature set reflects the generational gap. The RTX 4070 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The TITAN Z supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.175. The mobile part also uses a PCIe 4.0 x8 interface, while the TITAN Z uses PCIe 3.0 x16. Power requirements are dramatically different: the RTX 4070 Mobile has a TDP of 115 W and is an integrated GPU (IGP) with no power connectors, while the TITAN Z draws 375 W and requires two 8-pin connectors plus a suggested 750 W power supply.

Where Each One Wins

The RTX 4070 Mobile wins in every head-to-head benchmark recorded. Its Geekbench OpenCL and Vulkan scores are vastly higher, and its average benchmark score of 27,435 exceeds the TITAN Z’s 23,736 by roughly 15.6%. The mobile chip’s higher FP32 throughput, superior pixel rate, and support for ray tracing and tensor cores make it the clear choice for modern rendering workloads, including DirectX 12 Ultimate applications. Its 5 nm process and 121.8M / mm² transistor density also indicate far better efficiency per unit of silicon area.

The TITAN Z does hold some structural advantages. Its 384-bit memory bus and 336.0 GB/s bandwidth exceed the RTX 4070 Mobile’s 256.0 GB/s. It also has 240 TMUs versus 144, which could favor certain texture-heavy workloads if the software is optimized for Kepler. The TITAN Z’s 6 GB of memory, though less than the 8 GB in the mobile part, is still substantial. However, the absence of ray tracing and tensor cores, combined with a much lower FP32 rate, means these advantages rarely translate into real-world wins in the recorded data.

For users running legacy DirectX 11 or OpenGL applications, the TITAN Z may remain functional, but the RTX 4070 Mobile’s support for DirectX 12 Ultimate and Vulkan 1.4 positions it for future software. The TITAN Z is end-of-life, while the RTX 4070 Mobile is active in production. The mobile part’s 73rd percentile ranking against all GPUs, versus the TITAN Z’s 69th, confirms that the newer chip sits higher in the overall performance distribution.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 4070 Mobile has an average benchmark score of 27,435, while the NVIDIA GeForce GTX TITAN Z averages 23,736.

Q: How large is the performance gap in Geekbench Vulkan?

A: The RTX 4070 Mobile scores 108,367 points compared to 22,006 points for the TITAN Z, a 392.4% advantage.

Q: Does the TITAN Z have more memory bandwidth?

A: Yes, the TITAN Z offers 336.0 GB/s over a 384-bit bus, while the RTX 4070 Mobile provides 256.0 GB/s over a 128-bit bus.

Q: Does the TITAN Z support ray tracing?

A: No, the TITAN Z has no ray tracing cores and no tensor cores, while the RTX 4070 Mobile includes 36 RT cores and 144 tensor cores.

Q: What is the transistor density difference?

A: The RTX 4070 Mobile has 121.8 million transistors per mm², while the TITAN Z has 12.6 million per mm².

Q: Which GPU is still in production?

A: The RTX 4070 Mobile is marked as Active, while the GTX TITAN Z is End-of-life.

The Verdict

The data points to a single conclusion: the RTX 4070 Mobile is the superior product for nearly all modern workloads. Its FP32 compute of 15.62 TFLOPS is more than triple the TITAN Z’s 5.046 TFLOPS. Its Geekbench Vulkan score is 392.4% higher, and its OpenCL score is 328.8% higher. The TITAN Z’s only advantages are raw memory bandwidth and TMU count, but these do not translate into a single benchmark win in the recorded results.

The RTX 4070 Mobile also brings architectural features that the TITAN Z simply lacks: ray tracing cores, tensor cores, DirectX 12 Ultimate support, and a much smaller process node. Its 5 nm process allows for higher clocks and better efficiency, as evidenced by the 115 W TDP against the TITAN Z’s 375 W. The TITAN Z’s launch MSRP was 2,999 USD, but the performance data shows that the mobile chip outperforms it decisively in both recorded head-to-head tests.

For users who need a GPU for current games, compute workloads, or API-forward applications, the RTX 4070 Mobile is the clear choice. The TITAN Z remains a historical artifact with niche value for its wide memory bus, but the benchmark data offers no scenario where it wins. The 73rd percentile ranking of the RTX 4070 Mobile versus the 69th percentile of the TITAN Z confirms that the newer part is not just faster, but better positioned in the overall GPU landscape.

Specification Differences

| Specification | NVIDIA GeForce RTX 4070 Mobile | NVIDIA GeForce GTX TITAN Z |

|----------------|-------------------------------|----------------------------|

| Architecture | Ada Lovelace | Kepler |

| Process Node | 5 nm | 28 nm |

| Transistors | 22,900 million | 7,080 million |

| Die Size | 188 mm² | 561 mm² |

| Transistor Density | 121.8M / mm² | 12.6M / mm² |

| Base Clock | 1395 MHz | 705 MHz |

| Boost Clock | 1695 MHz | 876 MHz |

| Memory Size | 8 GB | 6 GB |

| Memory Type | GDDR6 | GDDR5 |

| Memory Bus | 128 bit | 384 bit |

| Memory Bandwidth | 256.0 GB/s | 336.0 GB/s |

| Memory Speed | 16 Gbps effective | 7 Gbps effective |

| Shading Units | 4608 | 2880 |

| TMUs | 144 | 240 |

| ROPs | 48 | 48 |

| RT Cores | 36 | None |

| Tensor Cores | 144 | None |

| Pixel Rate | 81.36 GPixel/s | 52.56 GPixel/s |

| Texture Rate | 244.1 GTexel/s | 210.2 GTexel/s |

| FP32 Compute | 15.62 TFLOPS | 5.046 TFLOPS |

| FP16 Compute | 15.62 TFLOPS (1:1) | None |

| TDP | 115 W | 375 W |

| Slot Width | IGP | Triple-slot |

| Power Connectors | None | 2x 8-pin |

| Suggested PSU | None | 750 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 3.0 x16 |

| DirectX Support| 12 Ultimate (12_2) | 12 (11_1) |

| Vulkan Support | 1.4 | 1.2.175 |

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

| Release Date | 2023-01-02 | 2014-05-27 |

| Launch MSRP | None | 2,999 USD |