NVIDIA GeForce 945M vs NVIDIA Quadro P4000 Comparison

FAQ

Q: How much faster is the NVIDIA Quadro P4000 than the GeForce 945M in the one benchmark they share?

A: In the Geekbench OpenCL test, the Quadro P4000 scores 36,212, while the GeForce 945M scores 8,099. That is a 347.1% difference, meaning the P4000 delivers more than four times the compute performance.

Q: Which GPU has the higher memory bandwidth?

A: The Quadro P4000 uses 8 GB of GDDR5 on a 256-bit bus, yielding 243.3 GB/s. The GeForce 945M has 2 GB of DDR3 on a 128-bit bus, giving just 28.80 GB/s. The P4000 offers roughly 8.4 times the bandwidth.

Q: Do both cards support DirectX 12 and Vulkan?

A: Yes, both list DirectX 12 and Vulkan 1.4 in their API support. However, the P4000 supports DirectX 12 (12_1), while the 945M supports only DirectX 12 (11_0). Both have OpenGL 4.6.

Q: What are the transistor counts and process nodes for each?

A: The Quadro P4000 is built on TSMC’s 16 nm process with 7,200 million transistors on a 314 mm² die. The GeForce 945M uses TSMC’s 28 nm node with 1,870 million transistors on a 148 mm² die. The P4000 has nearly four times the transistor count.

Q: Which card has the higher boost clock?

A: The Quadro P4000 boosts to 1480 MHz, while the GeForce 945M boosts to 1020 MHz. The P4000’s base clock of 1202 MHz is also higher than the 945M’s boost clock.

Q: How do their average benchmark scores compare to their closest rivals?

A: The Quadro P4000 has an average benchmark score of 9,665, placing it at the 47th percentile of all GPUs. The GeForce 945M averages 8,099, at the 42nd percentile. The P4000 sits within 0.5% of several rivals, including the Tesla C2070 at 9,716 (0.5% lower than the P4000). The 945M’s closest rival is the Radeon R9 M360 at 8,129, which is 0.4% lower than the 945M.

Architecture Differences

The two GPUs come from entirely different NVIDIA generations. The Quadro P4000 uses the GP104 chip, part of the Pascal architecture under the Quadro Pascal (Px000) generation. The GeForce 945M uses the GM107 chip, a Maxwell design from the GeForce. The P4000 is built on a 16 nm TSMC process, while the 945M uses the older 28 nm TSMC node. Transistor counts differ sharply: 7,200 million transistors for the P4000 against 1,870 million for the 945M. Die size also tells the story: 314 mm² versus 148 mm². Transistor density favors the newer node, at 22.9M per mm² for the P4000, compared to 12.6M per mm² for the 945M.

The memory subsystem is a major architectural gap. The P4000 has 8 GB of GDDR5 across a 256-bit interface, achieving 243.3 GB/s. The 945M has just 2 GB of DDR3 on a 128-bit bus, delivering 28.80 GB/s. Shader resources scale accordingly: the P4000 has 1,792 shading units, 112 TMUs, and 64 ROPs; the 945M has 640 shading units, 40 TMUs, and 16 ROPs. Pixel rate and texture rate reflect this: 94.72 GPixel/s and 165.8 GTexel/s for the P4000, versus 16.32 GPixel/s and 40.80 GTexel/s for the 945M. FP32 compute is 5.304 TFLOPS for the P4000. The 945M manages 1,305.6 GFLOPS. The P4000 also supports FP16 at 82.88 GFLOPS at a 1:64 ratio, a figure absent for the 945M. The P4000 runs at a 105 W TDP, uses a single-slot design with one 6-pin power connector, requires a 300 W suggested PSU, and connects via PCIe 3.0 x16. The 945M runs at 75 W, comes as an MXM module with no power connectors, and uses MXM-B (3.0). Display outputs differ too: the P4000 provides four DisplayPort 1.4a ports, while the 945M’s outputs are portable device dependent. The P4000 measures 241 mm by 111 mm; the 945M has no length or height recorded.

Head-to-Head Benchmarks

The only direct benchmark comparison in the database is Geekbench OpenCL. The Quadro P4000 scores 36,212, and the GeForce 945M scores 8,099. The delta is 347.1%, with the P4000 as the clear winner. This is a massive margin, far larger than the typical differences seen between two mobile or workstation GPUs. To put that in context, the P4000’s average benchmark score is 9,665, which is 19.3% above the 945M’s average of 8,099. The OpenCL result, however, shows a much larger gap, suggesting the P4000’s higher shader count, wider memory bus, and newer process all compound in compute-heavy workloads. The 945M’s single entry in the database is that same OpenCL test; there are no recorded results for 3DMark Steel Nomad, Passmark DirectX tests, or Geekbench Vulkan for the 945M. In contrast, the P4000 has a full suite: 3DMark Steel Nomad DX12 at 1,115, Geekbench Vulkan at 41,786, Passmark DirectX 9 at 181, DirectX 10 at 66, DirectX 11 at 86, DirectX 12 at 40, G2D at 786, G3D at 11,466, and GPU compute at 4,913.

Because the head-to-head data is limited to one test, the analysis rests on that single score. The 347.1% advantage in OpenCL is not a fluke of one test; it aligns with the architecture and memory differences. The P4000’s 5.304 TFLOPS FP32 output is more than four times the 945M’s 1,305.6 GFLOPS, and the bandwidth advantage is similarly large. The verdict from the shared benchmark is unambiguous: the P4000 dominates in raw compute.

The Verdict

The data points to a decisive win for the NVIDIA Quadro P4000. In the only direct comparison, it leads by 347.1% in Geekbench OpenCL. The P4000 also carries a significantly larger memory capacity (8 GB versus 2 GB), much higher bandwidth (243.3 GB/s versus 28.80 GB/s), and a newer architecture on a smaller process node. Its percentile rank is 47th versus the 945M’s 42nd, and its average score is 9,665 versus 8,099. The 945M, by contrast, has no recorded wins in any shared benchmark. For any workload that benefits from compute throughput, memory bandwidth, or shader processing, the P4000 is the clear choice. The 945M, with only 640 shading units and DDR3 memory, is positioned for lighter tasks, but the recorded data offers no scenario where it outpaces the P4000. The P4000’s launch MSRP was 815 USD. The 945M has no recorded launch MSRP. Given the end-of-life status for both cards, the P4000 still offers a far stronger profile for professional or compute-oriented use.

Specification Differences

| Specification | NVIDIA Quadro P4000 | NVIDIA GeForce 945M |

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

| Chip | GP104 | GM107 |

| Architecture | Pascal | Maxwell |

| Generation | Quadro Pascal (Px000) | GeForce 900M |

| Process node | 16 nm | 28 nm |

| Transistors | 7,200 million | 1,870 million |

| Die size | 314 mm² | 148 mm² |

| Transistor density | 22.9M / mm² | 12.6M / mm² |

| Base clock | 1202 MHz | 928 MHz |

| Boost clock | 1480 MHz | 1020 MHz |

| Memory clock | 1901 MHz, 7.6 Gbps effective | 900 MHz, 1800 Mbps effective |

| Memory size | 8 GB | 2 GB |

| Memory type | GDDR5 | DDR3 |

| Memory bus width | 256 bit | 128 bit |

| Memory bandwidth | 243.3 GB/s | 28.80 GB/s |

| Shading units | 1792 | 640 |

| TMUs | 112 | 40 |

| ROPs | 64 | 16 |

| Pixel rate | 94.72 GPixel/s | 16.32 GPixel/s |

| Texture rate | 165.8 GTexel/s | 40.80 GTexel/s |

| FP32 | 5.304 TFLOPS | 1,305.6 GFLOPS |

| FP16 | 82.88 GFLOPS (1:64) | null |

| TDP | 105 W | 75 W |

| Slot width | Single-slot | MXM Module |

| Power connectors | 1x 6-pin | None |

| Suggested PSU | 300 W | null |

| Bus interface | PCIe 3.0 x16 | MXM-B (3.0) |

| Display outputs | 4x DisplayPort 1.4a | Portable Device Dependent |

| DirectX | 12 (12_1) | 12 (11_0) |

| Dimensions | 241 mm x 111 mm | null |

| Release date | 2017-02-05 | 2015-10-26 |

| Predecessor | Quadro Maxwell | GeForce 800M |

| Successor | Quadro Volta | GeForce 10 Mobile |

Where Each One Wins

The Quadro P4000 wins every measurable category in this comparison. It has more shading units, TMUs, ROPs, memory, bandwidth, and a higher clock speed. Its FP32 compute of 5.304 TFLOPS is over four times the 945M’s, and its texture rate of 165.8 GTexel/s is roughly four times the 945M’s 40.80 GTexel/s. The P4000 also supports a higher DirectX feature level (12_1 versus 11_0), which may matter for certain modern APIs. In the only shared benchmark, OpenCL, the P4000 wins by 347.1%. Its average benchmark score and percentile rank are also higher. The GeForce 945M has no recorded wins. The only areas where the 945M appears favorable are power consumption (75 W versus 105 W) and its MXM form factor, which is designed for laptop integration. However, no benchmark data shows the 945M outperforming the P4000 in any test. For users prioritizing compute performance, memory bandwidth, or professional display outputs, the P4000 is the only choice supported by the data. The 945M’s sole recorded score, 8,099 in OpenCL, places it below the P4000’s lowest recorded Passmark compute score of 4,913, but that is a different test. In direct comparison, the P4000 holds an insurmountable lead.