AMD Radeon Pro 450 vs NVIDIA Quadro K5000 Comparison

Head-to-Head Benchmarks

The most dramatic result in the database is the Metal benchmark, where the AMD Radeon Pro 450 scores 12,893 against the NVIDIA Quadro K5000's 6,324. That is a 103.9% advantage for the AMD part, meaning it delivers more than double the Metal performance. This is the single largest margin between the two cards in any recorded test, and it completely reshapes how these two GPUs should be evaluated. The Radeon Pro 450 is clearly optimized for Apple's Metal API, and the data reflects that specialization without ambiguity.

However, the NVIDIA Quadro K5000 fights back in the other two recorded workloads. In OpenCL, the K5000 posts 11,418 versus the Radeon Pro 450's 9,002, a 21.2% deficit for the AMD card. This is a substantial gap, roughly one-fifth slower in raw compute throughput as measured by Geekbench. The K5000 also wins in Vulkan, scoring 11,169 against 10,518, a narrower 5.8% margin. While that Vulkan lead is modest compared to the OpenCL gap, it still gives NVIDIA the overall head-to-head victory with 2 wins out of 3 benchmark categories.

Looking at the broader context, the Radeon Pro 450's average benchmark score across all tests is 10,804, placing it at the 49th percentile of all GPUs in the database. Its nearest rivals include the NVIDIA Quadro K2200 at 10,761 (only 0.4% behind), the NVIDIA GeForce MX350 at 10,883 (0.7% ahead of the AMD part), and the NVIDIA GeForce GTX 560 Ti at 10,690 (1.1% behind). The AMD Radeon RX 6600S sits at 10,629, which is 1.7% below the Pro 450. These tight margins show that the Radeon Pro 450 is positioned in a dense cluster of comparable performance, where even small driver or workload differences can flip the ranking.

The Quadro K5000, meanwhile, averages 9,637 across its benchmarks, landing at the 46th percentile. Its nearest rivals are extremely close: the GeForce GTX 960M scores 9,645 (0.1% ahead), the Radeon Pro WX 2100 scores 9,653 (0.2% ahead), the Quadro P4000 scores 9,665 (0.3% ahead), and the Tesla C2070 scores 9,716 (0.8% ahead). This grouping indicates that the K5000, despite its age, still holds its own against much newer products, but it also shows that the card is not a performance outlier in either direction. The Radeon Pro 450 has a higher average score by roughly 12%, which is consistent with its Metal-heavy benchmark profile pulling the average up.

FAQ

Q: Which GPU wins the Metal benchmark, and by how much?

A: The AMD Radeon Pro 450 wins Geekbench Metal with a score of 12,893 versus the NVIDIA Quadro K5000's 6,324. That is a 103.9% advantage for the AMD card, meaning it scores more than double the K5000 in Metal.

Q: Does the NVIDIA Quadro K5000 win any benchmarks?

A: Yes, it wins two out of three. In Geekbench OpenCL, the K5000 scores 11,418 against the Radeon Pro 450's 9,002, a 21.2% lead. In Geekbench Vulkan, the K5000 scores 11,169 versus 10,518, a 5.8% lead.

Q: What is the average benchmark score for each card?

A: The AMD Radeon Pro 450 has an average benchmark score of 10,804, while the NVIDIA Quadro K5000 has an average of 9,637. This puts the AMD card at the 49th percentile of all GPUs and the NVIDIA card at the 46th percentile.

Q: How does the Radeon Pro 450 compare to its closest rivals?

A: The nearest rival is the NVIDIA Quadro K2200 at 10,761, which is only 0.4% behind the Radeon Pro 450. The NVIDIA GeForce MX350 is 0.7% ahead at 10,883, and the GeForce GTX 560 Ti is 1.1% behind at 10,690.

Q: What are the closest competitors to the Quadro K5000?

A: The GeForce GTX 960M is 0.1% ahead at 9,645, the Radeon Pro WX 2100 is 0.2% ahead at 9,653, and the Quadro P4000 is 0.3% ahead at 9,665. The Tesla C2070 is 0.8% ahead at 9,716.

Q: Which card has the higher peak memory bandwidth?

A: The NVIDIA Quadro K5000 has 172.8 GB/s of bandwidth from its 256-bit bus and 4 GB of GDDR5 memory. The AMD Radeon Pro 450 has 81.28 GB/s from a 128-bit bus and 2 GB of GDDR5 memory.

Architecture Differences

The two GPUs come from fundamentally different design eras. The AMD Radeon Pro 450 uses the Baffin chip built on GCN 4.0 architecture, fabricated on a 14 nm process at GlobalFoundries. It packs 3,000 million transistors into a 123 mm² die, giving a transistor density of 24.4 million per square millimeter. The NVIDIA Quadro K5000, by contrast, uses the GK104 chip with Kepler architecture, built on a 28 nm process at TSMC. It has 3,540 million transistors spread across a much larger 294 mm² die, resulting in a lower density of 12.0 million per square millimeter. The process node difference is significant: 14 nm versus 28 nm means the AMD part integrates nearly as many transistors in less than half the die area.

Compute resources diverge sharply. The Radeon Pro 450 has 640 shading units, 40 texture mapping units, and 16 ROPs. The Quadro K5000 has 1,536 shading units, 128 TMUs, and 32 ROPs. That is more than double the shader count and triple the texture units, which explains why the K5000 can sustain higher pixel and texture rates: 22.59 GPixel/s and 90.37 GTexel/s respectively, versus 12.80 GPixel/s and 32.00 GTexel/s for the AMD card. However, the Radeon Pro 450 achieves parity in FP32 throughput relative to its size: 1,024.0 GFLOPS, while the K5000 delivers 2.169 TFLOPS. The AMD card also supports FP16 at a 1:1 ratio with FP32, while the K5000 has no recorded FP16 capability.

The memory architecture tells a similar story. The Radeon Pro 450 uses 2 GB of GDDR5 on a 128-bit bus, yielding 81.28 GB/s. The K5000 uses 4 GB of GDDR5 on a 256-bit bus, yielding 172.8 GB/s, which is more than double the bandwidth. Both cards use GDDR5, but the K5000's wider bus gives it a decisive advantage in memory-bound workloads. The K5000 also has a higher memory clock at 1350 MHz (5.4 Gbps effective) versus 1270 MHz (5.1 Gbps effective) for the AMD part.

API support differs in important ways. The Radeon Pro 450 supports DirectX 12 (feature level 12_0), OpenGL 4.6, and Vulkan 1.3. The K5000 supports DirectX 12 (feature level 11_0), OpenGL 4.6, and Vulkan 1.2.175. The AMD card has a higher DirectX feature level and a newer Vulkan version, which matters for modern workloads. The Radeon Pro 450 also uses PCIe 3.0 x8, while the K5000 uses PCIe 2.0 x16; the newer interface on the AMD side partially compensates for the older, narrower connection.

Specification Differences

The most obvious difference is physical size and power. The AMD Radeon Pro 450 is an MXM module with a 35 W TDP and no power connectors. The NVIDIA Quadro K5000 is a dual-slot card measuring 267 mm (10.5 inches) in length and 111 mm (4.4 inches) in height, with a 122 W TDP, a single 6-pin power connector, and a suggested power supply of 300 W. The K5000 draws over three times the power of the AMD part.

Memory capacity differs by a factor of two: 2 GB on the Radeon Pro 450 versus 4 GB on the K5000. The bus widths also differ, with 128-bit on AMD and 256-bit on NVIDIA. The resulting bandwidth gap is substantial: 81.28 GB/s versus 172.8 GB/s. Clock speeds are recorded differently: the Radeon Pro 450 has no listed base or boost clock, but its memory runs at 1270 MHz. The K5000 has a base and boost clock of 706 MHz, with memory at 1350 MHz.

Shading resources are heavily skewed toward NVIDIA: 1,536 shading units, 128 TMUs, and 32 ROPs versus 640, 40, and 16. Pixel rate is 12.80 GPixel/s on AMD versus 22.59 GPixel/s on NVIDIA, and texture rate is 32.00 GTexel/s versus 90.37 GTexel/s. FP32 throughput is 1,024.0 GFLOPS on AMD versus 2.169 TFLOPS on NVIDIA. The Radeon Pro 450 has FP16 at 1,024.0 GFLOPS, while the K5000 has no FP16 data.

Display outputs also differ. The Radeon Pro 450 is marked as "Portable Device Dependent," reflecting its MXM form factor for laptops and all-in-ones. The K5000 has 2x DVI and 2x DisplayPort 1.2 outputs, making it a more traditional workstation card for desktop systems. Release dates are far apart: the Radeon Pro 450 launched on 2016-10-29, while the K5000 launched on 2012-08-16. Both are end-of-life products. The K5000 has a launch MSRP of 2,499 USD. The Radeon Pro 450 has no recorded launch MSRP.

Where Each One Wins

The AMD Radeon Pro 450 is the clear choice for Metal-centric workloads. Its 103.9% advantage over the K5000 in Geekbench Metal is not a marginal edge; it is a dominant, category-defining win. Any application that leverages Metal for GPU compute or graphics will strongly favor the AMD part. The Radeon Pro 450 also has a higher average benchmark score (10,804 versus 9,637), which means that across a mixed workload set, it tends to come out ahead. Its lower power draw (35 W versus 122 W) and MXM form factor make it suitable for portable systems where the K5000's dual-slot desktop design would be impractical. The newer API support (DirectX 12_0, Vulkan 1.3) also gives it an edge in compatibility with modern software stacks.

The NVIDIA Quadro K5000 wins in OpenCL and Vulkan. The OpenCL margin is substantial at 21.2%, and the Vulkan margin, while smaller at 5.8%, is still a consistent win. For users running OpenCL-based compute workloads, the K5000's higher shader count and memory bandwidth translate into tangible performance. The K5000 also has double the memory (4 GB versus 2 GB) and more than double the bandwidth (172.8 GB/s versus 81.28 GB/s), which matters for large datasets or textures that exceed the Radeon Pro 450's capacity. The K5000's pixel rate (22.59 GPixel/s) and texture rate (90.37 GTexel/s) are far higher, so rasterization-heavy tasks that are not tied to Metal could favor NVIDIA.

In terms of raw compute resources, the K5000 has more shaders, TMUs, and ROPs, and its FP32 throughput of 2.169 TFLOPS is more than double the Radeon Pro 450's 1,024.0 GFLOPS. The K5000 also has a wider PCIe interface (x16 versus x8), though on an older PCIe 2.0 standard. For legacy OpenGL or Vulkan applications that are not Metal-optimized, the K5000 is the stronger performer. However, the Radeon Pro 450's Metal dominance and higher average score make it the safer bet for Apple ecosystem users or anyone whose software stack is Metal-aware.

The Verdict

The data splits this comparison into two clear use cases. For Metal-based workloads, the AMD Radeon Pro 450 is the definitive winner, delivering more than double the performance of the K5000 in that specific API. Its higher average benchmark score (10,804 versus 9,637) and lower power draw (35 W versus 122 W) make it the more efficient and modern choice overall. The Radeon Pro 450 also benefits from newer architecture (GCN 4.0 on 14 nm versus Kepler on 28 nm), better DirectX feature support (12_0 versus 11_0), and a newer Vulkan version (1.3 versus 1.2.175). For a portable or low-power system where Metal is the primary compute interface, the Radeon Pro 450 is the only sensible pick.

For OpenCL and Vulkan workloads, the NVIDIA Quadro K5000 holds a clear advantage. It wins OpenCL by 21.2% and Vulkan by 5.8%, and its 4 GB of memory with 172.8 GB/s bandwidth gives it a capacity and throughput edge that the Radeon Pro 450 cannot match. The K5000's higher shader count (1,536 versus 640), more TMUs (128 versus 40), and higher pixel and texture rates make it a stronger candidate for traditional workstation rendering tasks that do not rely on Metal. However, its 122 W power draw and dual-slot form factor limit its deployment to desktop systems with adequate power supplies (300 W suggested).

The overall benchmark record shows the Radeon Pro 450 winning 1 out of 3 tests and the K5000 winning 2 out of 3. But the magnitude of the AMD win in Metal (103.9%) is far larger than either of NVIDIA's wins (21.2% and 5.8%). If the user's software stack is Metal-centric, the Radeon Pro 450 is the overwhelming choice. If the stack is OpenCL or Vulkan-centric, the K5000 is the better performer. The Radeon Pro 450 also has the higher percentile ranking (49th versus 46th) and the higher average score, which suggests it is the more balanced overall product for mixed workloads. The K5000 remains a viable legacy option for desktop workstations running OpenCL-heavy applications, but its age is showing in the Metal benchmark, where it is outclassed by a factor of two. Choose the Radeon Pro 450 for modern, efficient, Metal-first environments. Choose the Quadro K5000 for OpenCL-heavy desktop workloads where memory capacity and raw compute throughput matter more than API modernity.