NVIDIA GeForce 840M vs NVIDIA RTX PRO 6000 Blackwell Server Comparison

Head-to-Head Benchmarks

The database does not contain any direct head-to-head benchmark results between the NVIDIA RTX PRO 6000 Blackwell Server and the NVIDIA GeForce 840M. The recorded measurements are drawn from different test suites: the RTX PRO 6000 Blackwell Server has a single entry in 3DMark Steel Nomad DX12, while the GeForce 840M has entries in Geekbench OpenCL and Geekbench Vulkan. Because these tests do not overlap, a direct numeric comparison on the same workload is not possible from the available data.

What the data does show is how each part performs relative to its own nearest rivals. The RTX PRO 6000 Blackwell Server records a 3DMark Steel Nomad DX12 score of 5996. That places it 0.1% below the NVIDIA GeForce GTX 770M (6000) and 0.1% below the AMD Radeon RX 6400 (6001). It sits 0.2% above the AMD FirePro W4100 (5987) and 0.2% above the NVIDIA Quadro K4000M (5986). In other words, the RTX PRO 6000 Blackwell Server is effectively tied with a cluster of mid-range parts from several generations earlier. Its percentile versus all GPUs is 34, meaning roughly two-thirds of recorded GPUs score higher on the same aggregate metric.

The GeForce 840M shows a different pattern. Its Geekbench OpenCL score is 5764, and its Geekbench Vulkan score is 4880. Its average benchmark score is 5322. Against its nearest rivals, that average is 0.1% above the NVIDIA GeForce 930A (5317), 0.3% above the NVIDIA GeForce GTX 980M (5308), 0.7% above the NVIDIA GeForce 940M (5284), and 0.7% below the AMD Radeon R7 M445 (5358). The 840M percentile versus all GPUs is 31, which is three points lower than the RTX PRO 6000 Blackwell Server.

The lack of shared benchmarks means the two cannot be ranked against each other on identical tests. The RTX PRO 6000 Blackwell Server has a higher average benchmark score (5996 versus 5322), but that average is derived from a different workload type. The Geekbench tests on the 840M are compute-oriented, while the 3DMark Steel Nomad test on the RTX PRO 6000 Blackwell Server is a graphics workload. The recorded data does not support a claim that one is faster than the other in any specific shared application.

Architecture Differences

The two GPUs are separated by more than a decade of design evolution, and the architectural gaps are substantial. The RTX PRO 6000 Blackwell Server uses the GB202 chip built on the Blackwell 2.0 architecture, fabricated on a 5 nm process at TSMC. It contains 92,200 million transistors on a 750 mm² die, giving a transistor density of 122.9 million per mm². The GeForce 840M uses the GM108S chip on the Maxwell architecture, built on a 28 nm process at TSMC. It has 1,020 million transistors on a 77 mm² die, for a density of 13.2 million per mm². The RTX PRO 6000 Blackwell Server has roughly 90 times more transistors and nearly ten times the die area.

Clock speeds differ as well. The RTX PRO 6000 Blackwell Server has a base clock of 1590 MHz and a boost clock of 2617 MHz. The GeForce 840M runs at 1029 MHz base and 1124 MHz boost. Memory clocks are also different: the RTX PRO 6000 Blackwell Server uses 1750 MHz with 28 Gbps effective transfer, while the 840M runs at 1001 MHz with 2 Gbps effective.

Memory capacity and bandwidth show a massive divide. The RTX PRO 6000 Blackwell Server comes with 96 GB of GDDR7 on a 512-bit bus, delivering 1.79 TB/s of bandwidth. The GeForce 840M has 2 GB of DDR3 on a 64-bit bus, for 16.02 GB/s. That is a 112-fold difference in bandwidth and a 48-fold difference in capacity.

Compute resources scale accordingly. The RTX PRO 6000 Blackwell Server has 24,064 shading units, 752 texture mapping units, and 192 ROPs. It also includes 188 ray tracing cores and 752 tensor cores. The GeForce 840M has 384 shading units, 16 TMUs, and 8 ROPs, with no ray tracing cores and no tensor cores. Pixel rate is 502.5 GPixel/s for the RTX PRO 6000 Blackwell Server versus 8.992 GPixel/s for the 840M. Texture rate is 1,968.0 GTexel/s versus 17.98 GTexel/s. FP32 throughput is 126.0 TFLOPS versus 863.2 GFLOPS, a difference of roughly 146 times. The RTX PRO 6000 Blackwell Server also lists FP16 at 126.0 TFLOPS (1:1), while the 840M has no recorded FP16 figure.

Power and physical specifications diverge sharply. The RTX PRO 6000 Blackwell Server has a TDP of 600 W, is dual-slot, uses a single 16-pin power connector, and suggests a 1000 W power supply. It connects via PCIe 5.0 x16 and outputs through four DisplayPort 2.1b connectors. The GeForce 840M has a TDP of 33 W, is an IGP (integrated graphics processor), has no power connectors, and uses PCIe 3.0 x8. Its display outputs are listed as "Portable Device Dependent," reflecting its mobile/embedded design. The RTX PRO 6000 Blackwell Server measures 267 mm in length, 111 mm in height, and 40 mm in width. The 840M has no recorded dimensions.

API support is similar in some areas. Both support OpenGL 4.6 and Vulkan 1.4. The RTX PRO 6000 Blackwell Server supports DirectX 12 Ultimate (12_2), while the 840M supports DirectX 12 (11_0), a lower feature level. The RTX PRO 6000 Blackwell Server is in active production, with a release date of March 17, 2025, and its generation is listed as Server Blackwell (Bxx). The 840M is end-of-life, released March 11, 2014, and belongs to the GeForce 800M generation.

Where Each One Wins

The RTX PRO 6000 Blackwell Server is designed for server-side workloads that demand huge memory capacity, high bandwidth, and heavy compute parallelism. Its 96 GB GDDR7 pool and 1.79 TB/s bandwidth make it suitable for large data sets that would not fit in the 840M's 2 GB frame buffer. The 188 ray tracing cores and 752 tensor cores provide hardware acceleration for ray-traced rendering and AI inference, features entirely absent from the 840M. The 126.0 TFLOPS FP32 throughput and 126.0 TFLOPS FP16 throughput position it for dense compute tasks. The dual-slot form factor, 600 W TDP, and 1000 W suggested PSU indicate a stationary, power-rich environment.

The GeForce 840M wins on the opposite end of the spectrum. Its 33 W TDP, IGP form factor, and lack of power connectors make it suitable for portable devices where power draw is a constraint. Its 2 GB DDR3 memory and 16.02 GB/s bandwidth are modest but sufficient for lightweight workloads typical of a mobile graphics solution from its era. The 840M has no ray tracing or tensor cores, so it does not compete in those domains. Its recorded Geekbench OpenCL score of 5764 and Vulkan score of 4880 show it can handle compute tasks at a basic level, but the performance envelope is orders of magnitude below the RTX PRO 6000 Blackwell Server.

The data does not show any direct workload where the 840M outperforms the RTX PRO 6000 Blackwell Server. The RTX PRO 6000 Blackwell Server has a higher average benchmark score, higher percentile, and vastly superior specifications in every countable metric: shading units, TMUs, ROPs, memory, bandwidth, pixel rate, texture rate, and FP32. The only areas where the 840M could be considered preferable are power consumption, physical size, and the fact that it is an integrated solution suitable for portable devices. For any metric that measures raw performance or capacity, the RTX PRO 6000 Blackwell Server dominates.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA RTX PRO 6000 Blackwell Server has an average benchmark score of 5996, while the NVIDIA GeForce 840M has an average benchmark score of 5322. The difference is 674 points.

Q: Do the two GPUs share any benchmark results?

A: No. The RTX PRO 6000 Blackwell Server has a single recorded 3DMark Steel Nomad DX12 score, and the GeForce 840M has Geekbench OpenCL and Geekbench Vulkan scores. There are no head-to-head benchmark entries in the database.

Q: What is the memory bandwidth difference?

A: The RTX PRO 6000 Blackwell Server delivers 1.79 TB/s of bandwidth from 96 GB of GDDR7 on a 512-bit bus. The GeForce 840M delivers 16.02 GB/s from 2 GB of DDR3 on a 64-bit bus.

Q: Does the GeForce 840M support ray tracing or tensor cores?

A: No. The GeForce 840M has no ray tracing cores and no tensor cores. The RTX PRO 6000 Blackwell Server has 188 ray tracing cores and 752 tensor cores.

Q: What is the power requirement for each?

A: The RTX PRO 6000 Blackwell Server has a TDP of 600 W and suggests a 1000 W power supply, using a single 16-pin connector. The GeForce 840M has a TDP of 33 W and requires no power connectors.

Q: How do their release dates compare?

A: The GeForce 840M was released on March 11, 2014, and is end-of-life. The RTX PRO 6000 Blackwell Server was released on March 17, 2025, and is in active production.

The Verdict

The data points to a clear conclusion for most use cases. The NVIDIA RTX PRO 6000 Blackwell Server is the superior part for any workload that demands high compute throughput, large memory capacity, or advanced features like ray tracing and tensor acceleration. Its 126.0 TFLOPS FP32 output, 96 GB GDDR7 memory, and 1.79 TB/s bandwidth place it in a completely different performance class. The 188 ray tracing cores and 752 tensor cores provide capabilities the GeForce 840M lacks entirely. Its 34th percentile versus all GPUs is modest, but that is a reflection of the broader GPU population, not of its absolute capability.

The NVIDIA GeForce 840M is appropriate only where its constraints are the deciding factor. Its 33 W TDP, IGP form factor, and lack of power connectors make it viable for portable, low-power systems. Its 2 GB memory and 16.02 GB/s bandwidth are sufficient for basic graphics and compute tasks from its generation. Its 31st percentile versus all GPUs is close to the RTX PRO 6000 Blackwell Server's 34th, but that similarity is misleading because the two are measured on different benchmark suites. The 840M does not win any recorded performance comparison against the RTX PRO 6000 Blackwell Server.

For a server environment with access to a 1000 W power supply and a dual-slot PCIe 5.0 x16 slot, the RTX PRO 6000 Blackwell Server is the only sensible choice. For a portable device where power draw is limited to 33 W and no external power connector is available, the GeForce 840M serves that niche. The database shows no scenario where the 840M outperforms the RTX PRO 6000 Blackwell Server on any shared metric. Users who need performance should select the RTX PRO 6000 Blackwell Server; users who need minimal power and integrated packaging should select the GeForce 840M.