NVIDIA GeForce GTX 675MX vs NVIDIA Quadro P5000 Comparison

NVIDIA’s GeForce GTX 675MX and Quadro P5000 sit on opposite ends of the GPU timeline and use case spectrum. The GTX 675MX is a Kepler-era mobile part from 2012, while the Quadro P5000 is a Pascal-generation professional card from 2016. Benchmark data shows a single shared test result, and it is decisive: the Quadro P5000 dominates.

Head-to-Head Benchmarks

The only direct benchmark comparison available is Geekbench OpenCL, and the result is a landslide. The NVIDIA Quadro P5000 scores 52,509 points, while the NVIDIA GeForce GTX 675MX scores 10,723 points. That translates to a delta of -79.6% for the GTX 675MX, meaning the Quadro P5000 is roughly five times faster in this compute workload. For context, the GTX 675MX’s average benchmark score across all tests is 8,427, while the Quadro P5000’s average is 8,039 — a rare case where the average is lower than the head-to-head result. The Quadro P5000’s OpenCL score is a massive outlier on the high side, boosted by its professional compute capabilities.

The GTX 675MX does not win any head-to-head benchmark in the data. It has zero wins, while the Quadro P5000 has one. The disparity is so large that the Quadro’s OpenCL result alone outweighs the GTX 675MX’s entire benchmark suite. The GTX 675MX’s other scores — Geekbench Metal at 6,131 and Geekbench OpenCL at 10,723 — are its only recorded results. The Quadro P5000, by contrast, has a wider test footprint, including Passmark DirectX 9/10/11/12, Passmark G2D, G3D, and GPU Compute, plus 3DMark Steel Nomad DX12 and Geekbench Vulkan. The GTX 675MX has no DirectX or Vulkan scores listed, making cross-API comparisons impossible.

Architecture Differences

The two GPUs come from entirely different architectural generations. The GTX 675MX uses the GK104 chip on NVIDIA’s Kepler architecture, built on a 28 nm process at TSMC. It packs 3,540 million transistors into a 294 mm² die, yielding a transistor density of 12.0M per mm². The Quadro P5000 uses the GP104 chip on the Pascal architecture, also fabricated by TSMC but on a 16 nm process. It contains 7,200 million transistors on a 314 mm² die — nearly double the transistor count with only a 20 mm² increase in die size, resulting in a much higher density of 22.9M per mm².

The core configurations diverge dramatically. The GTX 675MX has 960 shading units, 80 texture mapping units (TMUs), and 32 ROPs. The Quadro P5000 more than doubles that: 2,560 shading units, 160 TMUs, and 64 ROPs. Pixel throughput tells the story — the Quadro P5000 achieves 110.9 GPixel/s versus the GTX 675MX’s 13.08 GPixel/s. Texture rate is similarly lopsided: 277.3 GTexel/s versus 52.32 GTexel/s. Raw FP32 compute is 8.873 TFLOPS for the Quadro P5000 against 1,255.7 GFLOPS (roughly 1.26 TFLOPS) for the GTX 675MX. The Quadro P5000 also lists FP16 at 138.6 GFLOPS with a 1:64 ratio, while the GTX 675MX has no FP16 figures.

Memory architecture is another generational leap. The GTX 675MX uses 2 GB of GDDR5 on a 256-bit bus, with memory clocks at 900 MHz (3.6 Gbps effective) and bandwidth of 115.2 GB/s. The Quadro P5000 uses 16 GB of GDDR5X on the same 256-bit bus, but memory runs at 1,127 MHz (9 Gbps effective), yielding 288.5 GB/s of bandwidth — 2.5 times the GTX 675MX’s. The Quadro also has a base clock of 1,607 MHz and boost clock of 1,733 MHz; the GTX 675MX lists no base or boost clocks.

FAQ

Q: Which GPU has more shading units?

A: The NVIDIA Quadro P5000 has 2,560 shading units, while the NVIDIA GeForce GTX 675MX has 960 — a difference of 1,600 units.

Q: How much memory does each card have?

A: The GTX 675MX comes with 2 GB of GDDR5, while the Quadro P5000 has 16 GB of GDDR5X. Both use a 256-bit memory bus.

Q: What is the memory bandwidth difference?

A: The Quadro P5000 offers 288.5 GB/s, compared to the GTX 675MX’s 115.2 GB/s. That is roughly 2.5 times more bandwidth for the Quadro.

Q: Are these cards from the same architecture?

A: No. The GTX 675MX is based on Kepler (GK104 chip), while the Quadro P5000 uses Pascal (GP104 chip). The GTX 675MX is on a 28 nm process; the Quadro P5000 is on 16 nm.

Q: Which card supports newer DirectX versions?

A: The Quadro P5000 supports DirectX 12 (12_1), while the GTX 675MX supports DirectX 12 (11_0). The Quadro also lists Vulkan 1.4 support versus the GTX 675MX’s Vulkan 1.2.175.

Q: What is the power draw of each card?

A: The GTX 675MX has a TDP of 100 W, while the Quadro P5000 has a TDP of 180 W. The Quadro P5000 requires a dual-slot form factor and a single 8-pin power connector, with a suggested PSU of 450 W.

Specification Differences

The table below highlights the key fields where the two GPUs differ.

| Specification | NVIDIA GeForce GTX 675MX | NVIDIA Quadro P5000 |

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

| Architecture | Kepler | Pascal |

| Process Node | 28 nm | 16 nm |

| Transistors | 3,540 million | 7,200 million |

| Die Size | 294 mm² | 314 mm² |

| Transistor Density | 12.0M / mm² | 22.9M / mm² |

| Base Clock | Not listed | 1607 MHz |

| Boost Clock | Not listed | 1733 MHz |

| Memory Size | 2 GB | 16 GB |

| Memory Type | GDDR5 | GDDR5X |

| Memory Clock | 900 MHz (3.6 Gbps effective) | 1127 MHz (9 Gbps effective) |

| Memory Bandwidth | 115.2 GB/s | 288.5 GB/s |

| Shading Units | 960 | 2560 |

| TMUs | 80 | 160 |

| ROPs | 32 | 64 |

| Pixel Rate | 13.08 GPixel/s | 110.9 GPixel/s |

| Texture Rate | 52.32 GTexel/s | 277.3 GTexel/s |

| FP32 Performance | 1,255.7 GFLOPS | 8.873 TFLOPS |

| TDP | 100 W | 180 W |

| Slot Width | MXM Module | Dual-slot |

| Power Connectors | None | 1x 8-pin |

| Suggested PSU | Not listed | 450 W |

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

| Display Outputs | Portable Device Dependent | 1x DVI, 4x DisplayPort 1.4a |

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

| Vulkan Support | 1.2.175 | 1.4 |

| Release Date | 2012-09-30 | 2016-09-30 |

| Launch MSRP | Not listed | 2,499 USD |

The Verdict

The data is unambiguous. The Quadro P5000 is the superior GPU by every measurable specification and the only head-to-head benchmark. Its OpenCL score of 52,509 dwarfs the GTX 675MX’s 10,723, and it leads in raw compute, memory capacity, bandwidth, and feature support. The GTX 675MX’s only advantages are lower power draw (100 W versus 180 W) and a smaller form factor (MXM module versus dual-slot). Neither of those offsets a 79.6% benchmark deficit.

The Quadro P5000 also holds a higher percentile ranking among all GPUs at 41, versus the GTX 675MX’s 43 — a counterintuitive result given the benchmark gap, but one explained by the GTX 675MX’s higher average score (8,427 versus 8,039). That average is skewed by the GTX 675MX’s limited test set and the Quadro’s many low-score Passmark DirectX entries. The Quadro’s Passmark DirectX 9 score of 170, DirectX 10 score of 77, DirectX 11 score of 102, and DirectX 12 score of 44 are all far below its OpenCL result, pulling its average down. The GTX 675MX, with only two benchmarks, has a more consistent profile.

For the GTX 675MX, the nearest rivals are the AMD Radeon 880M (-0.1%), NVIDIA GeForce MX330 (-0.4%), AMD Radeon HD 8870M (-0.4%), and AMD Radeon R9 M375X (+1.2%). The Quadro P5000 sits near the NVIDIA GeForce GTX 880M (0%), GTX 650 Ti (-0.2%), GTX 650 Ti Boost (-0.3%), and NVIDIA GRID K2 (-0.5%). Both cards are end-of-life, but the Quadro P5000 was released four years later and is architecturally a full generation ahead.

Where Each One Wins

The Quadro P5000 wins in every compute-heavy scenario. Its 8.873 TFLOPS of FP32 performance and 288.5 GB/s of memory bandwidth make it suitable for professional workloads like rendering, simulation, and large dataset processing. The 16 GB GDDR5X frame buffer is a massive advantage for tasks that need to hold large textures or models in memory. The Quadro P5000 also supports newer APIs, including DirectX 12 (12_1) and Vulkan 1.4, which matters for modern applications. Its PCIe 3.0 x16 interface and dual-slot design are standard for workstation cards.

The GTX 675MX has a narrower set of wins. It draws 100 W versus 180 W, making it more power-efficient in absolute terms. Its MXM module form factor is designed for laptops, so it fits in portable systems where the Quadro’s dual-slot, 267 mm length would never work. The GTX 675MX also has no power connectors, simplifying installation in mobile chassis. Its 2 GB GDDR5 memory is adequate for older games and light productivity tasks, but it cannot match the Quadro’s capacity or bandwidth.

For gaming specifically, the GTX 675MX is not competitive. It lacks DirectX 12 (12_1) features and has a lower pixel rate (13.08 GPixel/s versus 110.9 GPixel/s). The Quadro P5000’s Passmark G3D score of 12,634 is its strongest gaming-adjacent metric, while the GTX 675MX has no comparable G3D score. The Quadro’s Vulkan score of 6,342 and 3DMark Steel Nomad DX12 score of 1,330 further cement its lead in modern graphics APIs.

The GTX 675MX’s nearest rivals — the Radeon 880M, MX330, and HD 8870M — all sit within 0.4% of its average score, indicating it is a mid-range mobile part at best. The Quadro P5000’s rivals (GTX 880M, GTX 650 Ti, GTX 650 Ti Boost, GRID K2) are similarly clustered, but the Quadro’s OpenCL result shows it is capable of far more than its average suggests. If the task is OpenCL-heavy compute, the Quadro P5000 is in a different class entirely. If the task is a low-power mobile GPU for legacy applications, the GTX 675MX has a place — but only there.