AMD Radeon RX 6850M XT vs NVIDIA Quadro GP100 Comparison

NVIDIA Quadro GP100 and AMD Radeon RX 6850M XT represent two distinct approaches to high-performance graphics, separated by architecture, process technology, and intended use case. The data shows a near-tie in the only shared benchmark, with the Quadro GP100 edging ahead by 2.8% in Geekbench OpenCL (87445 vs 85040). However, their physical and architectural profiles could not be more different: a 610 mm² 16 nm workstation monster with 16 GB of HBM2 against a 335 mm² 7 nm mobile part with 12 GB of GDDR6. The benchmark results indicate that raw compute parity can be achieved through wildly different design philosophies, but the surrounding specifications reveal which card belongs in which system.

The Verdict

The Quadro GP100 is the choice for compute-heavy, memory-bandwidth-starved workloads. Its 732.2 GB/s of bandwidth over a 4096-bit HBM2 bus is nearly 70% higher than the RX 6850M XT's 432.0 GB/s, and its 16 GB frame buffer offers 4 GB more capacity. The Quadro also posts a 93rd percentile score versus 92nd for the AMD part, placing it marginally higher in the overall GPU hierarchy. Its nearest rival, the RTX A4500, sits 4% ahead (91671), while the Radeon PRO W7600 trails by 0.4% (87108) — meaning the GP100 is positioned in a dense pack of professional and mining-class silicon.

The RX 6850M XT is the pick for anyone needing modern API support and efficiency in a mobile form factor. Its 165 W TDP is 70 W lower than the GP100's 235 W, and it integrates ray tracing cores (40 of them) alongside DirectX 12 Ultimate (12_2) support, a feature the Pascal-based Quadro lacks entirely. Its Vulkan 1.4 support also outpaces the GP100's Vulkan 1.3. While its average benchmark score (78940) is dragged down by multiple tests, its Geekbench OpenCL score (85040) is within 2.8% of the Quadro, showing that compute performance is comparable despite the architectural gulf. For a laptop or compact system, the RX 6850M XT is the only realistic option — the Quadro is a dual-slot, 267 mm PCIe card with a 1x 8-pin connector and a 550 W suggested PSU.

Neither part wins decisively on compute. The Quadro GP100 wins the head-to-head OpenCL test by 2.8%, but that margin is well within noise for most workloads. The decision hinges on platform: if you need a desktop workstation card with massive bandwidth and legacy display outputs (DVI, DisplayPort 1.4a), the Quadro GP100 is the data-backed choice. If you need a mobile GPU with modern features and lower power draw, the RX 6850M XT is the only viable option.

Where Each One Wins

NVIDIA Quadro GP100 wins on raw memory throughput and capacity. The 4096-bit HBM2 interface delivers 732.2 GB/s, versus 432.0 GB/s for the RX 6850M XT's 192-bit GDDR6. That is a 69.5% bandwidth advantage, which directly benefits large dataset transfers, deep learning inference, and scientific visualization. The 16 GB capacity also allows larger working sets than the 12 GB on the AMD card. The Quadro's pixel rate of 138.5 GPixel/s and texture rate of 323.2 GTexel/s are lower than the AMD's 165.2 GPixel/s and 413.0 GTexel/s, but for compute-heavy tasks, bandwidth trumps fill rate.

AMD Radeon RX 6850M XT wins on throughput per watt and modern API readiness. Its 13.21 TFLOPS FP32 is 27.8% higher than the Quadro's 10.34 TFLOPS, and its FP16 of 26.43 TFLOPS is 27.7% higher (20.69 TFLOPS on the Quadro). The RDNA 2.0 architecture achieves this with a 165 W TDP, delivering roughly 80 TFLOPS per kilowatt versus 44 TFLOPS per kilowatt for the Pascal card. The RX 6850M XT also supports ray tracing, DirectX 12 Ultimate, and Vulkan 1.4, making it the only one of the two that can run modern game engines with hardware-accelerated ray tracing. Its 40 RT cores are a feature the Quadro simply does not have.

The win split is clear: the Quadro GP100 wins on memory-centric professional workloads, while the RX 6850M XT wins on compute density, efficiency, and feature set. The head-to-head OpenCL result (87445 vs 85040) shows that general-purpose compute is a wash, but the surrounding data points to divergent strengths.

Architecture Differences

The two GPUs are built on fundamentally different process nodes and design philosophies. The Quadro GP100 uses the Pascal architecture on TSMC's 16 nm process, packing 15,300 million transistors into a 610 mm² die. That yields a transistor density of 25.1 million per square millimeter. The RX 6850M XT uses RDNA 2.0 on TSMC's 7 nm process, fitting 17,200 million transistors into 335 mm² — a density of 51.3 million per square millimeter, more than double the Pascal part. This explains the 70 W TDP difference despite the AMD card having higher clock speeds (2321 MHz base, 2581 MHz boost versus 1304 MHz base, 1443 MHz boost).

Core configuration diverges sharply. The Quadro GP100 has 3584 shading units, 224 texture mapping units, and 96 ROPs. The RX 6850M XT has 2560 shading units, 160 TMUs, and 64 ROPs — fewer in every category, yet it achieves higher pixel and texture rates due to its much higher clocks. Memory architecture is the biggest differentiator: HBM2 on a 4096-bit bus versus GDDR6 on a 192-bit bus. The Quadro's memory clock is 715 MHz (1430 Mbps effective), while the AMD runs at 2250 MHz (18 Gbps effective). The wider bus compensates for the lower clock, resulting in 732.2 GB/s versus 432.0 GB/s.

Feature support is generationally split. The Quadro GP100 supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The RX 6850M XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD card also includes 40 ray tracing cores, a feature absent from the Pascal architecture. The Quadro uses a PCIe 3.0 x16 interface and requires a 1x 8-pin power connector, while the RX 6850M XT uses PCIe 4.0 x16 and is an IGP (integrated graphics processor) with no power connectors — it is designed for mobile platforms. Display outputs also differ: the Quadro offers 1x DVI and 4x DisplayPort 1.4a, while the AMD is portable-device dependent.

FAQ

Q: Which GPU has higher raw compute performance?

A: The AMD Radeon RX 6850M XT has higher FP32 (13.21 TFLOPS vs 10.34 TFLOPS) and FP16 (26.43 TFLOPS vs 20.69 TFLOPS) throughput. However, in the shared Geekbench OpenCL test, the NVIDIA Quadro GP100 scored 87445 versus 85040, a 2.8% advantage for the NVIDIA part.

Q: Is the Quadro GP100 suitable for gaming?

A: The data does not favor it for gaming. It lacks ray tracing cores and only supports DirectX 12 (12_1), while the RX 6850M XT supports DirectX 12 Ultimate (12_2) and includes 40 RT cores. The Quadro's 235 W TDP and dual-slot form factor also make it impractical for typical gaming systems.

Q: Why does the RX 6850M XT have a lower average benchmark score?

A: The RX 6850M XT's average score of 78940 is pulled down by its inclusion of multiple tests (3DMark Steel Nomad DX12 at 2257, Geekbench Metal at 128981, Geekbench OpenCL at 85040, and Geekbench Vulkan at 99483). The Quadro GP100 only has one reported benchmark (Geekbench OpenCL at 87445), so its average equals that score.

Q: Which card has better memory bandwidth?

A: The NVIDIA Quadro GP100 has significantly better memory bandwidth at 732.2 GB/s, compared to 432.0 GB/s for the RX 6850M XT. This is due to its 4096-bit HBM2 bus versus the AMD's 192-bit GDDR6 bus.

Q: Can the RX 6850M XT be installed in a desktop?

A: The RX 6850M XT is classified as an IGP with no power connectors and no dimensions listed, indicating it is a mobile part. The Quadro GP100 is a dual-slot, 267 mm PCIe card requiring a 1x 8-pin connector and 550 W suggested PSU.

Q: How do these GPUs rank against their nearest competitors?

A: The Quadro GP100 (93rd percentile) is 0.4% ahead of the Radeon PRO W7600 (87108), 2.1% ahead of the CMP 40HX (85637), and 4% behind the RTX A4500 Mobile (91134). The RX 6850M XT (92nd percentile) is 0.6% behind the Tesla P100 PCIe 12 GB (79396), 0.8% behind the Tesla P100 PCIe 16 GB (79605), and 1.1% behind the RTX 5090 (79842).

Head-to-Head Benchmarks

The only direct benchmark comparison available is Geekbench OpenCL, where the NVIDIA Quadro GP100 wins with a score of 87445 against the AMD Radeon RX 6850M XT's 85040. That is a 2.8% margin in favor of the Quadro, a relatively small gap given the architectural differences. The Quadro's score places it at the 93rd percentile, while the AMD card's OpenCL score alone would rank it near the same tier, though its overall average (78940) is lower due to other tests.

Looking at the broader benchmark picture, the RX 6850M XT shows strong performance in other APIs. Its Geekbench Metal score of 128981 is exceptionally high, and its Vulkan score of 99483 is solid. The 3DMark Steel Nomad DX12 score of 2257 is a single data point, but it reflects the card's modern API support. The Quadro GP100 has no equivalent scores for these tests, so cross-API comparisons are not possible.

The nearest rival data puts the Quadro GP100 in a tight pack: 0.4% ahead of the Radeon PRO W7600 (87108), 2.1% ahead of the NVIDIA CMP 40HX (85637), and 4% behind the RTX A4500 Mobile (91134). The RX 6850M XT's nearest rivals are all NVIDIA data-center or flagship consumer parts: 0.6% behind the Tesla P100 PCIe 12 GB (79396), 0.8% behind the Tesla P100 PCIe 16 GB (79605), and 1.1% behind the GeForce RTX 5090 (79842). This positioning shows that the RX 6850M XT, despite being a mobile part, competes directly with desktop and data-center GPUs in compute benchmarks.

In terms of wins, the head-to-head table shows 1 win for the Quadro GP100 and 0 for the RX 6850M XT. That single win is the OpenCL test. However, the RX 6850M XT's higher FP32 and FP16 rates suggest it would win in pure compute throughput tests, while the Quadro's bandwidth advantage would dominate memory-bound workloads. The data available does not include such tests, so the verdict rests on the single shared benchmark and the surrounding architectural evidence.