NVIDIA Quadro P6000 vs NVIDIA Quadro RTX 6000 Comparison

Where Each One Wins

The benchmark split between these two professional workstation cards is not subtle. The NVIDIA Quadro RTX 6000 wins both recorded head-to-head tests, and the margin in one of them is enormous. In Geekbench OpenCL, the RTX 6000 scores 74,179 against 66,382 for the Quadro P6000, a lead of 11.7 percent. That is a solid, workmanlike advantage for compute workloads that lean on OpenCL. The bigger story is Geekbench Vulkan: the RTX 6000 posts 129,564 versus 73,590 for the P6000, a 76.1 percent gap. That is not a refinement, it is a generational leap. Any workload that can use Vulkan will be dramatically faster on the RTX 6000.

The P6000 has no benchmark win in the recorded data. It is not that the card is bad, it is that it is older and built on a different architecture. In absolute terms, the P6000 still sits at the 90th percentile among all GPUs in the database, which is respectable. But the RTX 6000 sits at the 94th percentile, and its average benchmark score of 101,872 is roughly 45.5 percent higher than the P6000's 69,986. For a builder choosing between these two today, the direction is clear: the RTX 6000 wins on raw performance in every measured test, and it wins by a wide margin in Vulkan. The only scenario where the P6000 makes sense is if the workload is strictly legacy, does not touch Vulkan, and the price difference matters, but the performance data does not favor it anywhere.

Architecture Differences

The two cards come from different generations of NVIDIA's workstation lineup, and the architecture gap explains nearly every performance difference. The RTX 6000 uses the TU102 chip on the Turing architecture, fabricated on a 12 nm process at TSMC. The P6000 uses the GP102 chip on the Pascal architecture, fabricated on a 16 nm process, also at TSMC. The transistor counts reflect the generational shift: the TU102 packs 18,600 million transistors on a 754 mm² die, while the GP102 has 11,800 million transistors on a 471 mm² die. Interestingly, the transistor density is nearly identical: 24.7 million per mm² for the RTX 6000 versus 25.1 million per mm² for the P6000. The RTX 6000 simply has a much larger die to work with.

The compute resources differ substantially. The RTX 6000 has 4,608 shading units, 288 texture mapping units, and 96 ROPs. The P6000 has 3,840 shading units, 240 TMUs, and the same 96 ROPs. The RTX 6000 also adds hardware that the P6000 does not have at all: 72 RT cores for ray tracing and 576 tensor cores for AI acceleration. The P6000 has neither. That is the defining architectural split. The RTX 6000 is not just faster in brute-force compute, it is capable of types of work the P6000 cannot accelerate, namely real-time ray tracing and tensor-based workloads.

Clock speeds tell a nuanced story. The P6000 has a higher base clock at 1506 MHz versus 1440 MHz for the RTX 6000, but the RTX 6000 has a higher boost clock at 1770 MHz versus 1645 MHz. In practice, the RTX 6000's boost behavior and larger shader count win out. The FP32 throughput is 16.31 TFLOPS for the RTX 6000 versus 12.63 TFLOPS for the P6000, a 29 percent advantage. FP16 is even more lopsided: the RTX 6000 delivers 32.62 TFLOPS with a 2:1 ratio, while the P6000 manages only 197.4 GFLOPS at a 1:64 ratio. That is not a small difference, it is two orders of magnitude. Any workload using FP16 will be vastly faster on the RTX 6000.

Memory is another area where the architectures diverge. Both cards have 24 GB and a 384-bit bus, but the RTX 6000 uses GDDR6 at 1750 MHz with 14 Gbps effective speed, yielding 672.0 GB/s of bandwidth. The P6000 uses GDDR5X at 1127 MHz with 9 Gbps effective, yielding 432.8 GB/s. The RTX 6000 has 55 percent more memory bandwidth. Pixel rate and texture rate also favor the RTX 6000: 169.9 GPixel/s versus 157.9 GPixel/s, and 509.8 GTexel/s versus 394.8 GTexel/s. The API support is newer on the RTX 6000 as well, with DirectX 12 Ultimate (12_2) versus DirectX 12 (12_1) on the P6000. Both support OpenGL 4.6 and Vulkan 1.4, but the higher DirectX feature level matters for certain applications.

The Verdict

The data points to one clear answer: the RTX 6000 is the superior card in almost every measurable way. It wins both head-to-head benchmarks, has a higher average benchmark score, sits in a higher percentile among all GPUs, and offers architectural features the P6000 simply does not have. If the workload is modern, uses Vulkan, needs FP16 performance, or benefits from RT and tensor cores, the choice is the RTX 6000 without hesitation. The 76.1 percent Vulkan lead is the single most decisive number in this comparison. The RTX 6000 also has significantly more memory bandwidth and a higher pixel rate, which helps in texture-heavy and high-resolution workloads.

The P6000 is not without merit, but its merits are narrow. It has a higher base clock, which can help in lightly threaded or latency-sensitive tasks that do not boost well. It uses a single 8-pin power connector instead of the RTX 6000's 6-pin plus 8-pin setup, though both have the same 250 W and 260 W TDP respectively. The P6000 also has a DVI output in addition to four DisplayPort 1.4a outputs, which the RTX 6000 lacks in favor of a USB Type-C port. For a builder with an older display ecosystem that relies on DVI, the P6000 might be more convenient. But convenience is not performance. The recorded benchmark data shows the RTX 6000 winning both tests, and the architecture analysis explains why. For anyone choosing between these two for professional work, the RTX 6000 is the recommended pick unless the workload is strictly legacy and cannot use the newer features.

FAQ

Q: Which card has better Vulkan performance?

A: The RTX 6000 is far ahead. In Geekbench Vulkan, it scores 129,564 versus 73,590 for the P6000, a 76.1 percent advantage.

Q: Do both cards have the same amount of memory?

A: Yes, both have 24 GB, but the type and bandwidth differ. The RTX 6000 uses GDDR6 with 672.0 GB/s, while the P6000 uses GDDR5X with 432.8 GB/s.

Q: Does the P6000 support ray tracing or tensor cores?

A: No. The P6000 has no RT cores and no tensor cores. The RTX 6000 has 72 RT cores and 576 tensor cores.

Q: Which card has a higher FP32 throughput?

A: The RTX 6000 delivers 16.31 TFLOPS, while the P6000 delivers 12.63 TFLOPS, a 29 percent difference in favor of the RTX 6000.

Q: Are the power requirements different?

A: Both cards suggest a 600 W PSU. The RTX 6000 has a 260 W TDP and uses a 6-pin plus 8-pin connector, while the P6000 has a 250 W TDP and uses a single 8-pin connector.

Q: Which card has a higher overall benchmark average?

A: The RTX 6000 averages 101,872, which is about 45.5 percent higher than the P6000's 69,986.

Head-to-Head Benchmarks

The head-to-head results are unambiguous. In Geekbench OpenCL, the RTX 6000 scores 74,179, which beats the P6000's 66,382 by 11.7 percent. That is a meaningful gap for compute workloads that use OpenCL, such as certain rendering and simulation tasks. The RTX 6000's larger shader count and higher boost clock drive this advantage, along with its faster memory subsystem. The P6000's higher base clock does not compensate for having 768 fewer shading units and 48 fewer TMUs.

The Geekbench Vulkan result is where the comparison becomes a rout. The RTX 6000 scores 129,564, which is 76.1 percent higher than the P6000's 73,590. This is not a marginal improvement, it is a massive architectural advantage. Vulkan is a low-level API that can expose the full capabilities of modern hardware, and the Turing architecture in the RTX 6000 is clearly far better suited to it. The P6000's Pascal architecture, while competent, lacks the dedicated hardware and newer feature set that Vulkan can exploit. For any application that uses Vulkan, whether it is a game engine, a renderer, or a compute framework, the RTX 6000 will deliver substantially higher performance.

The overall average benchmark score reinforces the head-to-head results. The RTX 6000 averages 101,872 across all recorded tests, placing it at the 94th percentile among all GPUs. The P6000 averages 69,986, placing it at the 90th percentile. The difference in average score is roughly 45.5 percent, which is consistent with the OpenCL margin being smaller than the Vulkan margin but the overall trend being clearly in favor of the RTX 6000. In the database, the RTX 6000's nearest rivals are the AMD Radeon Pro Vega II Duo at 106,750, which is 4.6 percent higher, and the AMD Radeon Pro W6600X at 107,342, which is 5.1 percent higher. The P6000's nearest rivals are clustered much closer: the AMD Radeon Pro WX 8200 at 69,870 is only 0.2 percent higher, and the NVIDIA RTX A3000 Mobile at 70,140 is 0.2 percent lower. This shows that the P6000 sits in a competitive but tight performance band, while the RTX 6000 sits near the top of the database.

Specification Differences

The specification sheets for these two cards differ in almost every meaningful category. The RTX 6000 uses the TU102 chip on a 12 nm process with 18,600 million transistors and a 754 mm² die. The P6000 uses the GP102 chip on a 16 nm process with 11,800 million transistors and a 471 mm² die. Transistor density is almost identical, but the RTX 6000 has a 60 percent larger die. The RTX 6000 has 4,608 shading units, 288 TMUs, and 96 ROPs, while the P6000 has 3,840 shading units, 240 TMUs, and 96 ROPs. The RTX 6000 adds 72 RT cores and 576 tensor cores; the P6000 has none.

Clocks differ in base and boost. The P6000 has a higher base clock at 1506 MHz, but the RTX 6000 boosts higher at 1770 MHz. Memory speeds are also different: the RTX 6000 runs at 1750 MHz with 14 Gbps effective, while the P6000 runs at 1127 MHz with 9 Gbps effective. Both have 24 GB, but the RTX 6000 uses GDDR6 and the P6000 uses GDDR5X. Bandwidth is 672.0 GB/s versus 432.8 GB/s. The RTX 6000 has higher pixel rate, 169.9 GPixel/s versus 157.9 GPixel/s, and higher texture rate, 509.8 GTexel/s versus 394.8 GTexel/s. FP32 is 16.31 TFLOPS versus 12.63 TFLOPS, and FP16 is 32.62 TFLOPS versus 197.4 GFLOPS.

Power and connectivity differ slightly. The RTX 6000 has a 260 W TDP and uses a 6-pin plus 8-pin connector. The P6000 has a 250 W TDP and uses a single 8-pin connector. Both suggest a 600 W PSU. The RTX 6000 has four DisplayPort 1.4a outputs and one USB Type-C, while the P6000 has one DVI and four DisplayPort 1.4a outputs. The RTX 6000 supports DirectX 12 Ultimate (12_2), while the P6000 supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. Physical dimensions are identical: 267 mm length and 111 mm height, both dual-slot. The release dates are far apart, with the P6000 launching in 2016 and the RTX 6000 in 2018, and both are now end-of-life. The launch MSRP for the RTX 6000 is 6,299 USD, and for the P6000 it is 5,999 USD.