NVIDIA Quadro M5000 vs NVIDIA RTX A4000 Comparison

The NVIDIA Quadro M5000 and the NVIDIA RTX A4000 are separated by roughly six years of GPU architecture evolution. The M5000 arrived in mid-2015 as a Maxwell-generation workstation card, while the A4000 landed in early 2021 built on Ampere. The recorded benchmarks show a decisive generational shift: the RTX A4000 wins both head-to-head tests, with massive margins in raw compute and graphics API performance. However, the M5000 still holds a higher percentile ranking among all GPUs in the database, which makes this comparison more nuanced than a simple "newer is faster" conclusion. The data indicates that the A4000 is the superior performer in almost every measurable way, but the M5000 retains relevance in specific legacy and compatibility contexts.

Head-to-Head Benchmarks

The head-to-head results are lopsided. In Geekbench OpenCL, the RTX A4000 scores 105,739 against the M5000's 29,481. That is a delta of -72.1% from the A4000's perspective, meaning the M5000 trails by roughly three and a half times. To put it plainly, the A4000 delivers about 3.6 times the OpenCL compute score of the M5000. This is not a marginal improvement; it is a full generational leap in raw throughput.

The Geekbench Vulkan test tells a similar story. The A4000 posts 127,645, while the M5000 manages 32,931. The delta is -74.2%, again favoring the A4000. In Vulkan, the A4000 is roughly 3.9 times faster than the M5000. This is the largest relative gap between the two cards in any shared benchmark. Vulkan's lower-level API overhead appears to amplify the architectural advantages of the Ampere design, particularly its newer shading core layout and memory subsystem.

It is worth remembering the M5000 has no recorded wins in the head-to-head set. The database lists two tests for the M5000 and two for the A4000, and the A4000 wins both. However, the M5000's average benchmark score across all recorded tests is 31,206, which places it in the 76th percentile of all GPUs in the database. The A4000's average is 26,683, which puts it in the 72nd percentile. This apparent contradiction stems from the different benchmark sets: the M5000's two recorded tests (OpenCL and Vulkan) are both compute-oriented, while the A4000 has a broader suite including DirectX 9, 10, 11, 12, G2D, G3D, and compute tests. The A4000's extra tests drag its average down, since legacy DirectX tests score far lower than modern compute workloads.

The nearest rival data reinforces the different positioning. The M5000 sits near the NVIDIA GRID M60-1Q (avg score 31,220, delta 0%), the GeForce RTX 4070 Ti SUPER (31,087, delta 0.4%), the RTX PRO 4500 Blackwell (31,532, delta -1%), and the TITAN RTX (31,676, delta -1.5%). These are all high-end cards, which explains the M5000's strong percentile. The A4000, by contrast, is bracketed by the AMD Radeon RX 5700 XT 50th Anniversary (26,553, delta 0.5%), the GeForce MX550 (26,421, delta 1%), the Radeon 860M (26,401, delta 1.1%), and the GeForce RTX 5060 (26,331, delta 1.3%). The A4000's nearest rivals include entry-level mobile and integrated parts, which shows that its average score is pulled down by the broad test suite.

Where Each One Wins

The RTX A4000 wins every shared benchmark, but the magnitude of its advantage varies by workload type. In OpenCL, which is heavily used for GPU compute in scientific, engineering, and rendering applications, the A4000's 105,739 versus 29,481 represents a 3.6x lead. This is the kind of result that matters for tasks like simulation, data processing, and machine learning inference. The A4000's FP32 throughput of 19.17 TFLOPS directly supports this advantage, compared to the M5000's 4.252 TFLOPS.

In Vulkan, the A4000's 127,645 versus 32,931 is an even larger relative gap. Vulkan is a modern, low-overhead API used in games and real-time visualization. The A4000's support for DirectX 12 Ultimate (12_2) and its dedicated ray tracing and tensor cores make it far more capable for contemporary graphics workloads. The M5000 only supports DirectX 12 (12_1), which lacks the full feature set of the Ultimate specification.

The M5000's wins are less about performance and more about positioning. Its 76th percentile rank versus the A4000's 72nd means that, when compared to the entire GPU database, the M5000 sits in a slightly higher relative tier. This is likely because its two recorded benchmarks (OpenCL and Vulkan) are both modern compute tests where it still performs respectably against older and mid-range cards. For a user running a legacy application that only uses OpenCL or Vulkan, the M5000 is not an embarrassment; it simply trails the A4000 by a wide margin.

In legacy API tests, the A4000 has mixed results. Its Passmark DirectX 9 score is 240, DirectX 10 is 126, DirectX 11 is 158, and DirectX 12 is 72. These are low scores compared to its modern compute results, which suggests that the A4000's architecture is optimized for newer APIs and parallel workloads rather than old fixed-function paths. The M5000 has no recorded legacy DirectX scores, so no direct comparison is possible. The database simply does not include those tests for the M5000.

Architecture Differences

The M5000 uses the GM204 chip on a 28 nm process at TSMC. It packs 5,200 million transistors on a 398 mm² die, which works out to a transistor density of 13.1 million per square millimeter. The A4000 uses the GA104 chip on an 8 nm process at Samsung. It contains 17,400 million transistors on a 392 mm² die, giving a density of 44.4 million per square millimeter. The A4000's die is actually slightly smaller than the M5000's, yet it holds more than three times the transistors. This is the clearest illustration of the process node advantage: 8 nm versus 28 nm.

The memory subsystems differ substantially. The M5000 has 8 GB of GDDR5 on a 256-bit bus, with memory clocked at 1653 MHz and 6.6 Gbps effective, delivering 211.6 GB/s of bandwidth. The A4000 has 16 GB of GDDR6 on the same 256-bit bus, with memory at 1750 MHz and 14 Gbps effective, delivering 448.0 GB/s. The A4000 has double the capacity and more than double the bandwidth. For large datasets, CAD models, or high-resolution textures, the A4000's 16 GB is a significant practical advantage.

Compute resources also diverge sharply. The M5000 has 2,048 shading units, 128 texture mapping units, and 64 raster output units. The A4000 has 6,144 shading units, 192 TMUs, and 96 ROPs. The A4000 also includes 48 ray tracing cores and 192 tensor cores, which the M5000 lacks entirely. Pixel rate jumps from 66.43 GPixel/s on the M5000 to 149.8 GPixel/s on the A4000. Texture rate jumps from 132.9 GTexel/s to 299.5 GTexel/s. FP32 performance goes from 4.252 TFLOPS to 19.17 TFLOPS. The A4000 also has FP16 at 19.17 TFLOPS with a 1:1 ratio, while the M5000 lists no FP16 capability.

Clock speeds tell an interesting story. The M5000 has a higher base clock at 861 MHz versus the A4000's 735 MHz, but the A4000's boost clock is far higher at 1,560 MHz versus 1,038 MHz. The A4000's boost behavior is more aggressive, which contributes to its large performance lead despite the lower base clock. The A4000 also does this within a lower TDP of 140 W versus the M5000's 150 W. The A4000 is a single-slot card, while the M5000 is dual-slot. Both use a single 6-pin power connector, but the A4000 recommends a 300 W PSU while the M5000 recommends 450 W. The A4000 is also shorter at 241 mm (9.5 inches) versus 267 mm (10.5 inches), with nearly identical height at 112 mm versus 111 mm.

Interface and display outputs differ as well. The M5000 uses PCIe 3.0 x16 and outputs 1x DVI plus 4x DisplayPort 1.2. The A4000 uses PCIe 4.0 x16 and outputs 4x DisplayPort 1.4a. PCIe 4.0 doubles the bandwidth available for data transfer to the CPU, which matters for GPU compute workloads that stream data. The A4000's DisplayPort 1.4a supports higher resolutions and refresh rates than the M5000's DisplayPort 1.2.

Both cards support DirectX, OpenGL, and Vulkan, but with different versions. The M5000 lists DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. The A4000 lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The A4000's DirectX 12 Ultimate support includes features like ray tracing and mesh shaders that the M5000 cannot handle. Both are end-of-life products, with the M5000 released in 2015 and the A4000 in 2021.

FAQ

Q: Is the RTX A4000 faster than the Quadro M5000 in every benchmark?

A: Yes. In the two head-to-head tests, the A4000 wins both: Geekbench OpenCL at 105,739 versus 29,481, and Geekbench Vulkan at 127,645 versus 32,931.

Q: Why does the Quadro M5000 have a higher percentile rank than the RTX A4000?

A: The M5000 sits in the 76th percentile of all GPUs, while the A4000 is in the 72nd. This is due to different benchmark sets: the M5000 only has two compute-focused tests (OpenCL and Vulkan), while the A4000 also runs legacy DirectX and 2D tests that lower its average score.

Q: How much memory does each card have?

A: The Quadro M5000 has 8 GB of GDDR5 with 211.6 GB/s bandwidth. The RTX A4000 has 16 GB of GDDR6 with 448.0 GB/s bandwidth.

Q: Does the RTX A4000 support ray tracing?

A: Yes. The A4000 has 48 ray tracing cores and 192 tensor cores. The M5000 has no ray tracing or tensor cores.

Q: Which card has better FP32 compute performance?

A: The RTX A4000 is far ahead. It delivers 19.17 TFLOPS of FP32, while the Quadro M5000 delivers 4.252 TFLOPS. The A4000 also offers FP16 at 19.17 TFLOPS with a 1:1 ratio, while the M5000 lists no FP16 capability.

Q: Are both cards still in production?

A: No. Both are end-of-life. The M5000 was released in 2015 and the A4000 in 2021.

The Verdict

The RTX A4000 is the clear choice for any modern workload. It wins both head-to-head benchmarks by margins of roughly 3.6x in OpenCL and 3.9x in Vulkan. It has double the memory (16 GB versus 8 GB), more than double the bandwidth (448.0 GB/s versus 211.6 GB/s), and a massive compute advantage (19.17 TFLOPS versus 4.252 TFLOPS FP32). It includes ray tracing and tensor cores, supports DirectX 12 Ultimate, runs on PCIe 4.0, and does all of this in a single-slot form factor with a lower TDP of 140 W versus 150 W and a lower recommended PSU of 300 W versus 450 W. For anyone running current CAD, rendering, simulation, or AI-adjacent workloads, the A4000 is the obvious pick.

The Quadro M5000 makes sense only in narrow scenarios. Its 76th percentile rank is higher than the A4000's 72nd, but that is an artifact of the limited benchmark set. If a user has a legacy application that only uses OpenCL or Vulkan and does not need the A4000's extra compute, the M5000 is still a functional card. It also has a higher base clock, supports DVI output, and its 8 GB GDDR5 memory is sufficient for older datasets. PCIe 3.0 x16 is fine for less demanding workloads. But the M5000 is a dual-slot card with a higher TDP and a longer length of 267 mm, making it bulkier in a chassis. There are no workloads in the recorded data where the M5000 beats the A4000. The verdict is straightforward: buy the RTX A4000 unless a specific legacy compatibility requirement forces the M5000.

Specification Differences

| Specification | NVIDIA Quadro M5000 | NVIDIA RTX A4000 |

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

| Architecture | Maxwell 2.0 | Ampere |

| Process Node | 28 nm | 8 nm |

| Foundry | TSMC | Samsung |

| Transistors | 5,200 million | 17,400 million |

| Die Size | 398 mm² | 392 mm² |

| Transistor Density | 13.1M / mm² | 44.4M / mm² |

| Base Clock | 861 MHz | 735 MHz |

| Boost Clock | 1038 MHz | 1560 MHz |

| Memory Size | 8 GB | 16 GB |

| Memory Type | GDDR5 | GDDR6 |

| Memory Clock | 1653 MHz, 6.6 Gbps effective | 1750 MHz, 14 Gbps effective |

| Memory Bandwidth | 211.6 GB/s | 448.0 GB/s |

| Shading Units | 2048 | 6144 |

| TMUs | 128 | 192 |

| ROPs | 64 | 96 |

| RT Cores | None | 48 |

| Tensor Cores | None | 192 |

| Pixel Rate | 66.43 GPixel/s | 149.8 GPixel/s |

| Texture Rate | 132.9 GTexel/s | 299.5 GTexel/s |

| FP32 | 4.252 TFLOPS | 19.17 TFLOPS |

| FP16 | None listed | 19.17 TFLOPS (1:1) |

| TDP | 150 W | 140 W |

| Slot Width | Dual-slot | Single-slot |

| Power Connectors | 1x 6-pin | 1x 6-pin |

| Suggested PSU | 450 W | 300 W |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| Display Outputs | 1x DVI, 4x DisplayPort 1.2 | 4x DisplayPort 1.4a |

| DirectX | 12 (12_1) | 12 Ultimate (12_2) |

| OpenGL | 4.6 | 4.6 |

| Vulkan | 1.4 | 1.4 |

| Length | 267 mm (10.5 inches) | 241 mm (9.5 inches) |

| Height | 111 mm (4.4 inches) | 112 mm (4.4 inches) |

| Production Status | End-of-life | End-of-life | End-of-life |

| Release Date | 2015-06-28 | 2021-04-11 |