AMD Radeon R7 M440 vs NVIDIA Quadro K4000 Comparison

Head-to-Head Benchmarks

The recorded head-to-head data includes two compute workloads, and in both cases the NVIDIA Quadro K4000 takes a decisive lead over the AMD Radeon R7 M440. In the Geekbench OpenCL test, the Quadro K4000 scores 6816 against the Radeon R7 M440's 5214, a gap of 30.7%. That is a substantial margin, roughly a third more performance in raw compute throughput. The Vulkan result is closer but still firmly in NVIDIA's favor: 6964 versus 5751, a 21.1% advantage.

The average benchmark scores tell a similar story. The Quadro K4000 holds an average score of 5982 across its three recorded tests, while the Radeon R7 M440 averages 5483 across its two tests. That puts the NVIDIA card roughly 9.1% higher on average, though the single-test deltas are far larger than that average suggests. The reason is that the Radeon's two scores are closer to each other, while the Quadro's Metal score is lower than its OpenCL and Vulkan scores, pulling its average down.

Looking at the percentile rankings, both are mid-range performers. The Quadro K4000 sits at the 34th percentile of all GPUs, while the Radeon R7 M440 sits at the 32nd percentile. The two are only two percentage points apart in overall standing, which shows that while the Quadro wins every direct comparison, neither card is a top-tier compute device.

The nearest rival data puts both cards in context. The Quadro K4000's closest competitor, the NVIDIA Quadro K4000M, averages 5986, which is 0.1% higher than the desktop K4000. The AMD FirePro W4100 also averages 5987, again 0.1% higher. The Radeon R7 M440, by contrast, sits 0.3% above the NVIDIA Quadro M4000, 0.3% below the GeForce GTX 765M, and 0.5% below the GeForce MX130. These are all extremely tight groupings, indicating that both cards sit within a narrow performance band relative to their immediate peers.

What the head-to-head numbers show is that the Quadro K4000's wins are not marginal. A 30.7% lead in OpenCL and a 21.1% lead in Vulkan are meaningful, repeatable advantages. The Radeon R7 M440 does not win a single recorded benchmark in this comparison.

Where Each One Wins

The NVIDIA Quadro K4000 wins in both available benchmark categories. In OpenCL, its 6816 score gives it a 30.7% edge, which is the kind of margin that matters in compute-heavy workloads such as rendering, simulation, or data processing. In Vulkan, its 6964 score versus 5751 gives it a 21.1% edge, which is notable for graphics API performance and any application that leverages Vulkan's low-overhead pipeline.

The Radeon R7 M440 has no wins in the recorded data. Its strengths, if any, do not show up in these specific tests. It does have a larger memory pool at 4 GB compared to 3 GB, and it uses DDR3 memory with a 64-bit bus, but that configuration does not translate into a benchmark victory here. Its memory bandwidth of 14.40 GB/s is dramatically lower than the Quadro's 134.8 GB/s, which likely explains part of the performance gap in memory-sensitive workloads.

For users focused on compute performance in OpenCL or Vulkan, the choice is clear. The Quadro K4000 is faster in both. For users who need more memory capacity, the Radeon offers an extra gigabyte, but that capacity comes with a much narrower bus and slower memory technology, so it is not a straightforward advantage.

Architecture Differences

The two GPUs come from different architectural generations and are built for different roles. The NVIDIA Quadro K4000 uses the GK106 chip with a Kepler architecture, belonging to the Quadro Kepler (Kx000) generation. It is built on a 28 nm process at TSMC with 2,540 million transistors on a 221 mm² die, giving a transistor density of 11.5M per mm². The AMD Radeon R7 M440 uses the Meso chip with GCN 3.0 architecture, part of the Gem System (R7 M400) generation. It is also built on TSMC's 28 nm process, but with 1,550 million transistors on a 125 mm² die, for a density of 12.4M per mm².

The compute resources differ sharply. The Quadro K4000 has 768 shading units, 64 texture mapping units, and 24 ROPs. The Radeon R7 M440 has 320 shading units, 20 TMUs, and 8 ROPs. The Quadro has more than twice the shading units and three times the TMUs and ROPs. This explains its higher pixel rate of 12.96 GPixel/s versus 7.128 GPixel/s, and its texture rate of 51.84 GTexel/s versus 17.82 GTexel/s.

FP32 performance follows the same pattern. The Quadro K4000 delivers 1,244.2 GFLOPS, while the Radeon R7 M440 delivers 570.2 GFLOPS. The Radeon does list FP16 at 570.2 GFLOPS with a 1:1 ratio, but the Quadro does not list an FP16 figure at all. For most compute workloads, the Quadro's raw FP32 throughput is the more relevant number.

Memory architecture is another major split. The Quadro uses 3 GB of GDDR5 on a 192-bit bus, achieving 134.8 GB/s of bandwidth. The Radeon uses 4 GB of DDR3 on a 64-bit bus, achieving only 14.40 GB/s. The memory clock is also different: the Quadro runs at 1404 MHz with 5.6 Gbps effective, while the Radeon runs at 900 MHz with 1800 Mbps effective. The bandwidth difference is nearly tenfold, which is a critical factor in any workload that streams large data sets.

The two also differ in power and physical design. The Quadro K4000 has an 80 W TDP, is a single-slot card, requires one 6-pin power connector, and suggests a 250 W power supply. It measures 241 mm in length and 111 mm in height. The Radeon R7 M440 is an IGP, meaning it is integrated into a portable device, with no power connector, no TDP listed, and no dimensions recorded. Its display outputs are described as portable device dependent, while the Quadro offers 1x DVI and 2x DisplayPort 1.2.

Bus interface also differs: the Quadro uses PCIe 2.0 x16, while the Radeon uses PCIe 3.0 x8. The Radeon's newer PCIe generation does not compensate for its much lower bandwidth and compute resources.

API support is comparable. Both support DirectX 12, with the Quadro at 11_0 and the Radeon at 12_0. Both support OpenGL 4.6. Vulkan support is nearly identical, with the Quadro at 1.2.175 and the Radeon at 1.2.170. The Radeon has a slightly higher DirectX feature level, but that does not show up as a performance advantage in the recorded benchmarks.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA Quadro K4000, with an average score of 5982 compared to the AMD Radeon R7 M440's 5483.

Q: How much faster is the Quadro K4000 in OpenCL?

A: The Quadro K4000 scores 6816 versus 5214 for the Radeon R7 M440, a 30.7% advantage.

Q: Does the Radeon R7 M440 win any benchmark in this comparison?

A: No. The head-to-head data shows two benchmark tests, and the Quadro K4000 wins both.

Q: What are the memory configurations of the two GPUs?

A: The Quadro K4000 has 3 GB of GDDR5 on a 192-bit bus with 134.8 GB/s bandwidth. The Radeon R7 M440 has 4 GB of DDR3 on a 64-bit bus with 14.40 GB/s bandwidth.

Q: Which GPU has more shading units?

A: The Quadro K4000 has 768 shading units, while the Radeon R7 M440 has 320.

Q: Are both GPUs built on the same process node?

A: Yes, both use a 28 nm process at TSMC, but the Quadro K4000 has a larger die at 221 mm² versus 125 mm² for the Radeon R7 M440.

Specification Differences

The table below lists only the fields where the two GPUs differ, based on the recorded data.

| Field | NVIDIA Quadro K4000 | AMD Radeon R7 M440 |

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

| Chip | GK106 | Meso |

| Architecture | Kepler | GCN 3.0 |

| Generation | Quadro Kepler (Kx000) | Gem System (R7 M400) |

| Transistors | 2,540 million | 1,550 million |

| Die Size | 221 mm² | 125 mm² |

| Transistor Density | 11.5M / mm² | 12.4M / mm² |

| Memory Clock | 1404 MHz, 5.6 Gbps effective | 900 MHz, 1800 Mbps effective |

| Memory Size | 3 GB | 4 GB |

| Memory Type | GDDR5 | DDR3 |

| Memory Bus Width | 192 bit | 64 bit |

| Memory Bandwidth | 134.8 GB/s | 14.40 GB/s |

| Shading Units | 768 | 320 |

| TMUs | 64 | 20 |

| ROPs | 24 | 8 |

| Pixel Rate | 12.96 GPixel/s | 7.128 GPixel/s |

| Texture Rate | 51.84 GTexel/s | 17.82 GTexel/s |

| FP32 | 1,244.2 GFLOPS | 570.2 GFLOPS |

| FP16 | Not listed | 570.2 GFLOPS (1:1) |

| TDP | 80 W | Not listed |

| Slot Width | Single-slot | IGP |

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

| Suggested PSU | 250 W | Not listed |

| Bus Interface | PCIe 2.0 x16 | PCIe 3.0 x8 |

| Display Outputs | 1x DVI, 2x DisplayPort 1.2 | Portable Device Dependent |

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

| Vulkan Support | 1.2.175 | 1.2.170 |

| Dimensions | 241 mm length, 111 mm height | Not listed |

| Release Date | 2013-02-28 | 2016-05-14 |

| Predecessor | Quadro Fermi | Solar System |

| Successor | Quadro Maxwell | Polaris Mobile |

| Launch MSRP | 1,269 USD | Not listed |

| Avg Benchmark Score | 5982 | 5483 |

| Percentile | 34 | 32 |

| OpenCL Score | 6816 | 5214 |

| Vulkan Score | 6964 | 5751 |

The Verdict

The data points to a straightforward conclusion: the NVIDIA Quadro K4000 is the stronger GPU in every recorded benchmark. It wins OpenCL by 30.7% and Vulkan by 21.1%. Its average score is 5982 versus 5483 for the Radeon R7 M440. Its compute resources are substantially higher across shading units, TMUs, ROPs, pixel rate, texture rate, and FP32 throughput. Its memory bandwidth is vastly superior at 134.8 GB/s versus 14.40 GB/s.

The Radeon R7 M440 does offer more memory capacity at 4 GB, a newer DirectX feature level at 12_0, a denser transistor layout at 12.4M per mm², and a newer release date. None of these translate into a benchmark win in the recorded data. Its integrated design makes it a different class of product, suited for portable devices rather than desktop workstations.

Anyone selecting a GPU strictly on recorded performance should choose the Quadro K4000. It is the only card with wins in this comparison, and its margins are large enough to matter in real workloads. The Radeon R7 M440 is not without merits, but those merits are not reflected in the compute benchmarks available here.