AMD Radeon RX 6800 XT vs NVIDIA TITAN X Pascal Comparison

Head-to-Head Benchmarks

The recorded data contains two directly comparable benchmark results between these cards, and the outcome is decisive. In Geekbench OpenCL, the AMD Radeon RX 6800 XT scores 171,304 points against 66,696 for the NVIDIA TITAN X Pascal. That is a 61.1% advantage for the AMD card, a substantial margin that reflects the generational gap between the two architectures.

The Vulkan results tell a similar story, though with a narrower spread. The RX 6800 XT posts 136,875 points in Geekbench Vulkan, while the TITAN X Pascal manages 77,499. The delta here is 43.4% in favor of AMD. Both workloads show the same winner, and the aggregate win count stands at 2 for the RX 6800 XT and 0 for the TITAN X Pascal.

Context from the nearest rivals list helps frame these numbers. The TITAN X Pascal's average benchmark score of 72,098 places it in the 91st percentile of all GPUs in the database. Its closest rivals include the AMD Radeon Pro Vega 64 at 72,379 (a 0.4% difference) and the AMD Radeon RX 6650M at 71,768 (a 0.5% difference). So while the TITAN X Pascal is competitive within its own generation, the RX 6800 XT operates in a different tier entirely.

The RX 6800 XT's average benchmark score of 48,477 is dragged down by the inclusion of several Passmark tests that are not directly comparable across architectures. Its percentile rank of 85 is lower than the TITAN X Pascal's 91, but this is an artifact of the test suite composition rather than an indication of raw performance. In the two head-to-head tests that span both cards, the RX 6800 XT wins by margins that dwarf any of the TITAN X Pascal's rival deltas.

The TITAN X Pascal's best showing against its nearest rivals is a 1.8% lead over the AMD Radeon RX 6600 LE. The RX 6800 XT, by contrast, trails the NVIDIA GeForce RTX 5070 Ti by 3% and the AMD Radeon RX Vega 64 by 3%, while leading the NVIDIA RTX A1000 Mobile by 1.5%. These are small differences in a tightly packed field, but the head-to-head results show that the RX 6800 XT's advantage over the TITAN X Pascal is not marginal; it is transformative.

Architecture Differences

The two cards represent fundamentally different design philosophies separated by four years of silicon evolution. The TITAN X Pascal uses the GP102 chip on a 16 nm TSMC process, packing 11,800 million transistors into a 471 mm² die. The RX 6800 XT uses the Navi 21 chip on a 7 nm TSMC process, with 26,800 million transistors across a 520 mm² die. The transistor density difference is stark: 25.1 million transistors per square millimeter for the Pascal chip versus 51.5 million for the RDNA 2.0 chip.

Clock speeds reflect the architectural leap. The TITAN X Pascal runs at a 1417 MHz base and 1531 MHz boost, while the RX 6800 XT starts at 1825 MHz base and reaches 2250 MHz boost, with a game clock of 2015 MHz. The AMD card also operates its memory at 2000 MHz (16 Gbps effective) compared to the TITAN X's 1251 MHz (10 Gbps effective).

The compute resources differ substantially. The RX 6800 XT has 4608 shading units, 288 texture mapping units, and 128 raster operation units. The TITAN X Pascal counters with 3584 shading units, 224 TMUs, and 96 ROPs. The AMD card also brings 72 ray tracing cores, a feature entirely absent from the Pascal architecture. Neither card has tensor cores.

Memory configurations take different routes to similar bandwidth. The TITAN X Pascal uses 12 GB of GDDR5X on a 384 bit bus, yielding 480.4 GB/s. The RX 6800 XT uses 16 GB of GDDR6 on a 256 bit bus, achieving 512.0 GB/s. The narrower bus on the AMD card is compensated by faster memory clocks and a more efficient memory controller.

The resulting throughput figures show the RX 6800 XT's dominance. It produces 288.0 GPixel/s and 648.0 GTexel/s, versus 147.0 GPixel/s and 342.9 GTexel/s for the TITAN X Pascal. FP32 compute is 20.74 TFLOPS for AMD and 10.97 TFLOPS for NVIDIA, a 1.89x advantage. The FP16 story is even more lopsided: the RX 6800 XT delivers 41.47 TFLOPS at a 2:1 ratio, while the TITAN X Pascal manages only 171.5 GFLOPS at a 1:64 ratio.

Power and interface specifications also differ. The TITAN X Pascal has a 250 W TDP with 1x 6-pin and 1x 8-pin connectors, requiring a 600 W power supply. The RX 6800 XT draws 300 W with 2x 8-pin connectors and a 700 W suggested PSU. The NVIDIA card uses PCIe 3.0 x16, while the AMD card uses PCIe 4.0 x16. Display outputs favor the AMD card with 1x HDMI 2.1, 2x DisplayPort 1.4a, and 1x USB Type-C, versus the TITAN X's 1x DVI, 1x HDMI 2.0, and 3x DisplayPort 1.4a.

FAQ

Q: Which card has higher raw compute performance?

A: The AMD Radeon RX 6800 XT delivers 20.74 TFLOPS FP32, nearly double the TITAN X Pascal's 10.97 TFLOPS. In FP16, the margin widens further: 41.47 TFLOPS versus 171.5 GFLOPS.

Q: How do the memory subsystems compare?

A: The RX 6800 XT has 16 GB of GDDR6 on a 256 bit bus with 512.0 GB/s bandwidth. The TITAN X Pascal has 12 GB of GDDR5X on a 384 bit bus with 480.4 GB/s. The AMD card achieves higher bandwidth despite a narrower bus.

Q: What is the difference in ray tracing support?

A: The RX 6800 XT includes 72 dedicated ray tracing cores as part of the RDNA 2.0 architecture. The TITAN X Pascal has no ray tracing cores; the Pascal architecture predates hardware-accelerated ray tracing.

Q: Which card has better Vulkan performance?

A: The RX 6800 XT scores 136,875 in Geekbench Vulkan, a 43.4% improvement over the TITAN X Pascal's 77,499.

Q: Are the physical dimensions identical?

A: Both cards are 267 mm long and dual-slot. The RX 6800 XT is taller at 120 mm versus 112 mm, and wider at 50 mm versus 40 mm.

Q: What API features distinguish the two cards?

A: The RX 6800 XT supports DirectX 12 Ultimate (12_2), while the TITAN X Pascal supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4.

Specification Differences

| Specification | NVIDIA TITAN X Pascal | AMD Radeon RX 6800 XT |

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

| Architecture | Pascal | RDNA 2.0 |

| Process node | 16 nm | 7 nm |

| Transistors | 11,800 million | 26,800 million |

| Die size | 471 mm² | 520 mm² |

| Transistor density | 25.1M / mm² | 51.5M / mm² |

| Base clock | 1417 MHz | 1825 MHz |

| Boost clock | 1531 MHz | 2250 MHz |

| Game clock | None | 2015 MHz |

| Memory clock | 1251 MHz (10 Gbps) | 2000 MHz (16 Gbps) |

| Memory size | 12 GB | 16 GB |

| Memory type | GDDR5X | GDDR6 |

| Memory bus | 384 bit | 256 bit |

| Memory bandwidth | 480.4 GB/s | 512.0 GB/s |

| Shading units | 3584 | 4608 |

| TMUs | 224 | 288 |

| ROPs | 96 | 128 |

| Ray tracing cores | None | 72 |

| Pixel rate | 147.0 GPixel/s | 288.0 GPixel/s |

| Texture rate | 342.9 GTexel/s | 648.0 GTexel/s |

| FP32 | 10.97 TFLOPS | 20.74 TFLOPS |

| FP16 | 171.5 GFLOPS (1:64) | 41.47 TFLOPS (2:1) |

| TDP | 250 W | 300 W |

| Power connectors | 1x 6-pin + 1x 8-pin | 2x 8-pin |

| Suggested PSU | 600 W | 700 W |

| Bus interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| Display outputs | 1x DVI, 1x HDMI 2.0, 3x DisplayPort 1.4a | 1x HDMI 2.1, 2x DisplayPort 1.4a, 1x USB Type-C |

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

| Height | 112 mm | 120 mm |

| Width | 40 mm | 50 mm |

| Release date | 2016-08-01 | 2020-10-27 |

| Successor | GeForce 20 | Navi III |

Where Each One Wins

The AMD Radeon RX 6800 XT wins every directly comparable benchmark recorded in the database. Its 61.1% lead in Geekbench OpenCL and 43.4% lead in Geekbench Vulkan are decisive, and the architectural advantages in compute throughput, memory bandwidth, and feature support reinforce those results. For any workload that leverages FP32 compute, the RX 6800 XT's 20.74 TFLOPS versus 10.97 TFLOPS makes the outcome predetermined. The 72 ray tracing cores add a capability the TITAN X Pascal cannot match at all, making the AMD card the choice for modern DirectX 12 Ultimate titles.

The NVIDIA TITAN X Pascal retains relevance only in narrow contexts. Its 91st percentile rank among all GPUs shows it remains a competent performer within its generation, and its nearest rival deltas (0.4% behind the Radeon Pro Vega 64, 0.5% ahead of the RX 6650M) indicate a tight cluster of comparable cards. The 12 GB memory configuration and 384 bit bus were generous for their time, and the 480.4 GB/s bandwidth remains respectable. The lower 250 W TDP and single 6-pin plus 8-pin connector requirement make it easier to integrate into existing systems with 600 W power supplies.

For users with legacy software that does not benefit from RDNA 2.0 optimizations, the TITAN X Pascal's Pascal architecture may offer more mature driver support in specific applications. The 1x DVI output is a legacy compatibility advantage for older monitors. However, the benchmark data shows no workload where the TITAN X Pascal outperforms the RX 6800 XT.

The RX 6800 XT's advantages extend beyond raw speed. The 7 nm process node delivers 51.5M transistors per mm², enabling 26,800 million transistors in a die only 49 mm² larger than the Pascal chip. The 16 GB memory capacity is 33% larger, and the 512.0 GB/s bandwidth is 6.6% higher. The PCIe 4.0 interface doubles the bus bandwidth available to the card, and the USB Type-C output adds modern connectivity options.

The production status for both cards is end-of-life, but the release dates tell the story. The TITAN X Pascal launched in August 2016 with a launch MSRP of 1,199 USD. The RX 6800 XT launched in October 2020 with a launch MSRP of 649 USD. The newer card delivers roughly double the FP32 throughput, higher memory bandwidth, more memory, and ray tracing support. The benchmark results simply quantify what the specification sheet already suggests: the RX 6800 XT is the superior card in every measurable way within this comparison.