AMD Radeon RX 6850M XT vs NVIDIA TITAN X Pascal Comparison

The AMD Radeon RX 6850M XT and NVIDIA TITAN X Pascal represent two very different generations of GPU design, separated by roughly five years of architectural evolution. The data shows a clear shift in performance capabilities, with the mobile AMD part outperforming the older desktop flagship in the shared benchmarks, despite the TITAN X Pascal having a larger physical die and higher power draw.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 6850M XT has an average benchmark score of 78,940, which is 9.5% higher than the NVIDIA TITAN X Pascal's 72,098. The AMD part also sits in the 92nd percentile of all GPUs, compared to the 91st percentile for the NVIDIA card.

Q: How much faster is the AMD GPU in the Geekbench OpenCL test?

A: The AMD Radeon RX 6850M XT scores 85,040 in Geekbench OpenCL, which is 27.5% ahead of the NVIDIA TITAN X Pascal's 66,696. This represents a significant performance advantage in compute workloads.

Q: What is the difference in process node between the two cards?

A: The AMD Radeon RX 6850M XT uses a 7 nm process node, while the NVIDIA TITAN X Pascal uses a 16 nm process node. Both are manufactured by TSMC, but the smaller node allows AMD to pack 51.3M transistors per mm² versus 25.1M per mm² for NVIDIA.

Q: Do both GPUs support the same DirectX version?

A: No. The AMD Radeon RX 6850M XT supports DirectX 12 Ultimate (12_2), while the NVIDIA TITAN X Pascal supports DirectX 12 (12_1). This reflects the newer feature set available on the RDNA 2.0 architecture.

Q: Which card has more memory bandwidth?

A: The NVIDIA TITAN X Pascal has higher memory bandwidth at 480.4 GB/s, thanks to its 384-bit bus, compared to 432.0 GB/s on the AMD Radeon RX 6850M XT's 192-bit bus. Both cards have 12 GB of memory, but the NVIDIA uses GDDR5X while AMD uses GDDR6.

Q: What is the launch MSRP of the NVIDIA TITAN X Pascal?

A: The launch MSRP of the NVIDIA TITAN X Pascal is 1,199 USD. No MSRP is listed for the AMD Radeon RX 6850M XT, which is a mobile IGP part.

Architecture Differences

The AMD Radeon RX 6850M XT is built on the RDNA 2.0 architecture using the Navi 22 chip, while the NVIDIA TITAN X Pascal uses the older Pascal architecture with the GP102 chip. This generational gap is evident in the process technology: AMD uses a 7 nm TSMC node, while NVIDIA is on 16 nm TSMC. The transistor counts reflect this difference, with AMD packing 17,200 million transistors into a 335 mm² die (51.3M per mm²), while NVIDIA has 11,800 million transistors on a much larger 471 mm² die (25.1M per mm²).

The AMD card features 2,560 shading units, 160 TMUs, and 64 ROPs, along with 40 dedicated ray tracing cores. The NVIDIA TITAN X Pascal has more raw compute units with 3,584 shading units, 224 TMUs, and 96 ROPs, but lacks dedicated ray tracing or tensor cores entirely. This is a fundamental architectural difference: RDNA 2.0 includes hardware-accelerated ray tracing support, while Pascal predates this feature.

Clock speeds also differ dramatically. The AMD Radeon RX 6850M XT operates at a base clock of 2321 MHz and boosts to 2581 MHz, with a game clock of 2463 MHz. The NVIDIA TITAN X Pascal is much slower in raw clock terms, with a 1417 MHz base and 1531 MHz boost. Despite the higher clocks, the AMD card has a lower TDP of 165 W compared to the NVIDIA's 250 W, which is notable given the performance advantage.

The API support also differs: AMD supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while NVIDIA supports DirectX 12 (12_1) and Vulkan 1.4. Both support OpenGL 4.6. The AMD card also supports FP16 at a 2:1 ratio (26.43 TFLOPS), while the NVIDIA card's FP16 performance is severely limited at 171.5 GFLOPS (1:64 ratio), which is a major compute workload difference.

Head-to-Head Benchmarks

The head-to-head data shows a decisive victory for the AMD Radeon RX 6850M XT in both shared benchmarks. In Geekbench OpenCL, the AMD card scores 85,040 versus 66,696 for the NVIDIA TITAN X Pascal, a 27.5% advantage. This is a substantial margin that reflects both the newer architecture and higher clock speeds of the AMD part.

The Geekbench Vulkan test shows an even larger gap. The AMD Radeon RX 6850M XT scores 99,483, while the NVIDIA TITAN X Pascal manages 77,499. This translates to a 28.4% delta in favor of the AMD card. The improvement in Vulkan performance from OpenCL is interesting, suggesting the RDNA 2.0 architecture handles the lower-level API particularly well, while the Pascal card shows a smaller relative gain.

These benchmark results are consistent with the overall average benchmark scores. The AMD Radeon RX 6850M XT's average of 78,940 places it 9.5% above the NVIDIA TITAN X Pascal's 72,098. The AMD card's nearest rivals include the NVIDIA GeForce RTX 5090 at -1.1% and the RTX 5090 D at +1.6%, while the NVIDIA card's nearest rivals include the AMD Radeon Pro Vega 64 at -0.4% and the RX 6650M at +0.5%.

Specification Differences

The most striking specification difference is the process node: the AMD Radeon RX 6850M XT uses 7 nm TSMC, while the NVIDIA TITAN X Pascal uses 16 nm TSMC. This leads to a transistor density of 51.3M per mm² for AMD versus 25.1M per mm² for NVIDIA, even though the NVIDIA die is larger at 471 mm² versus 335 mm².

Memory configuration differs significantly. Both have 12 GB, but the AMD uses GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth, while the NVIDIA uses GDDR5X on a 384-bit bus with 480.4 GB/s bandwidth. The NVIDIA card has higher bandwidth despite slower effective memory speed (10 Gbps versus 18 Gbps), due to its wider bus.

Clock speeds favor the AMD card heavily. The base clock of 2321 MHz versus 1417 MHz and boost of 2581 MHz versus 1531 MHz represent a massive difference. The AMD's game clock of 2463 MHz is also notable, a feature the NVIDIA card does not have.

Shading unit counts favor NVIDIA (3,584 versus 2,560), as do TMUs (224 versus 160) and ROPs (96 versus 64). However, the AMD card achieves higher pixel rate (165.2 GPixel/s versus 147.0 GPixel/s) and texture rate (413.0 GTexel/s versus 342.9 GTexel/s), plus higher FP32 performance (13.21 TFLOPS versus 10.97 TFLOPS).

Power and physical specifications also differ. The AMD card has a 165 W TDP, is IGP (integrated) with no power connectors, and uses PCIe 4.0 x16. The NVIDIA card has a 250 W TDP, is dual-slot, requires 1x 6-pin + 1x 8-pin connectors, suggests a 600 W PSU, and uses PCIe 3.0 x16. The NVIDIA card's dimensions are 267 mm length, 112 mm height, and 40 mm width.

Where Each One Wins

The AMD Radeon RX 6850M XT wins in every benchmark category where both cards were tested. It is 27.5% faster in Geekbench OpenCL and 28.4% faster in Geekbench Vulkan. Its overall average benchmark score is 9.5% higher, and it has a higher percentile ranking (92nd versus 91st). The AMD card also offers newer features like ray tracing cores and DirectX 12 Ultimate support.

The NVIDIA TITAN X Pascal's advantages are more subtle and lie in its raw specifications rather than measured performance. It has more shading units, TMUs, and ROPs, plus higher memory bandwidth (480.4 GB/s versus 432.0 GB/s). Its larger 384-bit memory bus could theoretically benefit certain bandwidth-sensitive workloads, though the measured benchmarks do not show this advantage materializing.

For thermal and power characteristics, the AMD card is clearly more efficient. It delivers higher performance with a 165 W TDP versus the NVIDIA's 250 W TDP. The AMD card is also an IGP with no power connectors, making it suitable for mobile implementations, while the NVIDIA card is a dual-slot desktop card requiring substantial power delivery.

The Verdict

Based strictly on the benchmark data, the AMD Radeon RX 6850M XT is the superior GPU. It wins both head-to-head tests by margins of 27.5% and 28.4%, has a higher average benchmark score, and a higher percentile ranking. The AMD card achieves this despite having fewer shading units and lower memory bandwidth, demonstrating the efficiency of the newer RDNA 2.0 architecture on a 7 nm process.

The NVIDIA TITAN X Pascal remains a capable card for its era, but the data shows it is outclassed by the newer AMD mobile part. Its higher raw specifications (more cores, wider memory bus) do not translate into performance wins in the measured tests. The NVIDIA card's only advantage is higher memory bandwidth, which does not overcome the AMD card's massive clock speed and architectural advantages.

Buyers should choose the AMD Radeon RX 6850M XT for compute performance, modern API support, and energy efficiency. The NVIDIA TITAN X Pascal might still be relevant for legacy compatibility or specific use cases requiring its unique feature set, but the benchmark results clearly favor the AMD card in all measurable categories. The data suggests that architectural advancement has delivered a substantial performance leap, with the mobile AMD part outperforming the older desktop flagship.