AMD Radeon Vega 8 vs NVIDIA Quadro K5000 Comparison

The Verdict

The data presents a clear split: the NVIDIA Quadro K5000 wins two of three head-to-head benchmarks, while the AMD Radeon Vega 8 wins the remaining one by a substantial margin. In Geekbench OpenCL, the Quadro K5000 scores 11,418 against 8,822 for the Vega 8, a 29.4% advantage. In Geekbench Vulkan, the lead widens to 37.3%, with scores of 11,169 versus 8,134. The Vega 8 strikes back in Geekbench Metal, posting 10,706 against 6,324 — a 40.9% swing in its favor.

For compute-heavy workloads using OpenCL or Vulkan, the Quadro K5000 is the data-backed choice. Its average benchmark score of 9,637 sits just ahead of the Vega 8's 9,221, and its percentile rank of 46 versus 45 confirms a narrow overall edge. However, the Vega 8's Metal performance is exceptional for an integrated part, making it the better option for Apple-centric Metal workflows. The Quadro K5000's nearest rivals all score within 0.8% of it (GTX 960M at 9,645, Radeon Pro WX 2100 at 9,653, Quadro P4000 at 9,665, Tesla C2070 at 9,716), indicating it sits in a tightly packed performance tier. The Vega 8's rivals are similarly clustered, with the Radeon 890M at 9,210 being its closest competitor at just 0.1% delta.

Architecturally, these are fundamentally different products. The Quadro K5000 is a discrete workstation card from 2012, built on 28 nm Kepler silicon with 3,540 million transistors on a 294 mm² die. The Vega 8 is a 2018 integrated graphics processor on 14 nm GCN 5.0, packing 4,940 million transistors into a 210 mm² die that also contains CPU cores. The Vega 8's higher transistor density (23.5M / mm² versus 12.0M / mm²) reflects the newer process node.

The Quadro K5000 is end-of-life with a launch MSRP of 2,499 USD. The Vega 8 is also end-of-life, but had no standalone launch MSRP because it ships as part of an APU. Neither part is current, but the data suggests each still has relevance in specific scenarios.

FAQ

Q: Which GPU wins more head-to-head benchmarks?

A: The NVIDIA Quadro K5000 wins two of three tests: Geekbench OpenCL (11,418 vs 8,822, a 29.4% delta) and Geekbench Vulkan (11,169 vs 8,134, a 37.3% delta). The AMD Radeon Vega 8 wins Geekbench Metal (10,706 vs 6,324, a 40.9% delta).

Q: How do their overall benchmark averages compare?

A: The Quadro K5000 has an average benchmark score of 9,637 across its three tests, while the Vega 8 averages 9,221. That is a 416-point gap, or roughly 4.5% in favor of the Quadro. Their percentile ranks are nearly identical: 46 for the Quadro versus 45 for the Vega 8.

Q: Which GPU has better Metal performance?

A: The AMD Radeon Vega 8 dominates in Geekbench Metal with a score of 10,706, which is 40.9% higher than the Quadro K5000's 6,324. This is the largest margin in either direction across all three head-to-head tests.

Q: What are the memory configurations?

A: The Quadro K5000 has dedicated 4 GB of GDDR5 memory on a 256-bit bus, delivering 172.8 GB/s bandwidth. The Vega 8 uses system shared memory with a system-dependent bandwidth, meaning its performance scales with the host system's RAM configuration.

Q: Which GPU has higher power consumption?

A: The Quadro K5000 is rated at 122 W TDP with a dual-slot cooler and a single 6-pin power connector, requiring a 300 W suggested PSU. The Vega 8 is an IGP rated at 25 W TDP with no power connectors, drawing power entirely from the motherboard.

Q: What API levels do they support?

A: The Vega 8 supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The Quadro K5000 supports DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175. The Vega 8 has a higher DirectX feature level and newer Vulkan version.

Architecture Differences

The two GPUs come from different architectural eras with distinct design philosophies. The Quadro K5000 uses the Kepler architecture on a 28 nm TSMC process, featuring 3,540 million transistors across a 294 mm² die. Its transistor density is 12.0 million per square millimeter. The Vega 8 uses the GCN 5.0 architecture on a 14 nm GlobalFoundries process, with 4,940 million transistors on a 210 mm² die — a density of 23.5 million per square millimeter, nearly double that of the Kepler part.

The compute resources differ dramatically. The Quadro K5000 has 1,536 shading units, 128 texture mapping units, and 32 ROPs. The Vega 8 has 512 shading units, 32 TMUs, and 8 ROPs — one-third the shading units, one-quarter the TMUs, and one-quarter the ROPs. Despite this, the Vega 8's pixel rate of 8.800 GPixel/s and texture rate of 35.20 GTexel/s are lower than the Quadro's 22.59 GPixel/s and 90.37 GTexel/s, reflecting the Quadro's massive clock advantage.

Clock speeds tell a revealing story. The Quadro K5000 runs at a fixed 706 MHz for both base and boost, with memory at 1350 MHz (5.4 Gbps effective). The Vega 8 has a base clock of 300 MHz and a boost of 1100 MHz — a wide dynamic range typical of mobile parts. The Quadro's FP32 throughput is 2.169 TFLOPS, while the Vega 8 delivers 1,126.4 GFLOPS (about 1.13 TFLOPS). The Vega 8 supports FP16 at 2.253 TFLOPS with a 2:1 ratio, a feature the Quadro lacks entirely.

The Vega 8's integrated nature is visible throughout its spec sheet. It uses system shared memory, has an IGP slot width, no power connectors, and motherboard-dependent display outputs. The Quadro K5000 is a discrete dual-slot card measuring 267 mm in length and 111 mm in height, with 2x DVI and 2x DisplayPort 1.2 outputs, and a PCIe 2.0 x16 interface. The Vega 8's bus interface is simply "IGP," meaning it communicates over the system's internal fabric rather than a dedicated PCIe slot.

Specification Differences

| Specification | NVIDIA Quadro K5000 | AMD Radeon Vega 8 |

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

| Architecture | Kepler | GCN 5.0 |

| Process Node | 28 nm | 14 nm |

| Foundry | TSMC | GlobalFoundries |

| Transistors | 3,540 million | 4,940 million |

| Die Size | 294 mm² | 210 mm² |

| Transistor Density | 12.0M / mm² | 23.5M / mm² |

| Base Clock | 706 MHz | 300 MHz |

| Boost Clock | 706 MHz | 1100 MHz |

| Memory | 4 GB GDDR5 | System Shared |

| Memory Bus | 256 bit | System Shared |

| Memory Bandwidth | 172.8 GB/s | System Dependent |

| Shading Units | 1536 | 512 |

| TMUs | 128 | 32 |

| ROPs | 32 | 8 |

| Pixel Rate | 22.59 GPixel/s | 8.800 GPixel/s |

| Texture Rate | 90.37 GTexel/s | 35.20 GTexel/s |

| FP32 | 2.169 TFLOPS | 1,126.4 GFLOPS |

| FP16 | N/A | 2.253 TFLOPS (2:1) |

| TDP | 122 W | 25 W |

| Slot Width | Dual-slot | IGP |

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

| Suggested PSU | 300 W | N/A |

| Bus Interface | PCIe 2.0 x16 | IGP |

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

| Vulkan | 1.2.175 | 1.3 |

| Display Outputs | 2x DVI, 2x DisplayPort 1.2 | Motherboard Dependent |

| Release Date | 2012-08-16 | 2018-02-11 |

| Predecessor | Quadro Fermi | GCN 3.0 IGP |

| Successor | Quadro Maxwell | Vega II IGP |

Head-to-Head Benchmarks

The Geekbench Metal test is the Vega 8's signature victory. Its score of 10,706 crushes the Quadro K5000's 6,324, a 40.9% deficit for the NVIDIA part. This is the largest delta in the entire comparison, and it flips the expected hierarchy — the integrated Vega 8 outperforms the dedicated workstation card by a wide margin in this API. The result is particularly striking given the Quadro's hardware advantages in raw shading units and memory bandwidth.

Geekbench OpenCL tells the opposite story. The Quadro K5000 scores 11,418, which is 29.4% higher than the Vega 8's 8,822. This is a substantial margin that aligns with the Quadro's higher FP32 throughput (2.169 TFLOPS vs 1,126.4 GFLOPS) and dedicated GDDR5 memory. The Vega 8's reliance on system shared memory likely contributes to its lower OpenCL showing, as memory latency and bandwidth are system-dependent rather than fixed.

Geekbench Vulkan produces the Quadro's largest win. Its score of 11,169 beats the Vega 8's 8,134 by 37.3%. This is the second-largest delta in the comparison, and it suggests the Kepler architecture's Vulkan implementation, despite being an older version (1.2.175 vs 1.3), delivers superior performance in this workload. The Quadro's nearest Vulkan rival in its competitor set, the Quadro P4000, scores 9,665 on average — the K5000's Vulkan score exceeds that by over 1,500 points.

Looking at the broader context, the Quadro K5000's average score of 9,637 places it within 0.1% of the GeForce GTX 960M (9,645) and within 0.8% of the Tesla C2070 (9,716). The Vega 8's average of 9,221 is nearly identical to the Radeon 890M (9,210, a 0.1% delta) and trails the GeForce GTX 960 (9,273) by 0.6%. Both parts occupy the 45th-46th percentile of all GPUs, meaning they are statistically indistinguishable in overall standing despite their architectural differences.

The win counts favor the Quadro K5000 at 2 wins to 1, but the magnitude of the Vega 8's Metal victory should not be underestimated. A 40.9% margin in any benchmark is decisive, and for users targeting Metal-based applications, the Vega 8 is the clear choice. For OpenCL and Vulkan workloads, the Quadro K5000's 29.4% and 37.3% margins respectively make it the performance leader. The data does not support a single "best" GPU — it supports choosing based on the specific API and workload.