GPU Comparison

Intel UHD Graphics 730 and Intel Iris Pro Graphics P6300 are both end-of-life integrated graphics solutions from Intel, but they target very different eras and design philosophies. The UHD 730 is a modern Rocket Lake-era IGP built on the newer Generation 12.1 architecture, while the Iris Pro P6300 is a Broadwell-era part with a Generation 8.0 core. The benchmark data shows a clear, though narrow, overall winner in the UHD 730, which edges out the older Iris Pro in the only shared test. However, the underlying specifications reveal a more nuanced story about how each GPU achieves its performance, making the choice between them dependent on the specific workload and platform context.

Where Each One Wins

The Intel UHD Graphics 730 wins the only directly comparable benchmark, the Geekbench OpenCL test, with a score of 5988 against the Iris Pro P6300's 5712, a 4.8% advantage. This makes the UHD 730 the better choice for general compute and OpenCL-accelerated applications. Its higher boost clock of 1300 MHz, compared to the Iris Pro's 800 MHz, likely drives this victory in tasks that respond well to raw clock speed, such as simple shader execution and lightweight physics calculations.

The Intel Iris Pro P6300, despite losing the head-to-head, wins in scenarios that favor its vastly superior texture processing throughput. With 48 texture mapping units (TMUs) and a texture rate of 38.40 GTexel/s, it offers more than double the texture fill rate of the UHD 730's 15.60 GTexel/s. In games or workloads that are heavily texture-bound, such as older titles with high-resolution textures or 2D/3D CAD applications that sample textures frequently, the P6300 is the stronger candidate. The P6300 also has more raw shading power in terms of FP32 throughput, delivering 614.4 GFLOPS versus the UHD 730's 499.2 GFLOPS, which can help in complex pixel shader scenarios that do not rely on clock speed alone.

Architecture Differences

The two GPUs represent a significant architectural generational gap. The UHD 730 is based on Intel's Generation 12.1 architecture, the same family used in Rocket Lake processors, and is fabricated on a 14 nm+++ process node. The Iris Pro P6300, in contrast, uses the older Generation 8.0 architecture from the Broadwell era, built on a standard 14 nm node. This generational leap gives the UHD 730 access to newer instruction sets and efficiency improvements, which partially explains how it achieves a higher score despite having half the shading units.

The compute configuration is where the two parts diverge most sharply. The UHD 730 has 192 shading units, 12 TMUs, and 8 ROPs, while the Iris Pro P6300 has 384 shading units, 48 TMUs, and only 6 ROPs. This means the P6300 has double the shader count and four times the TMUs, but the UHD 730 has more ROPs, giving it a higher pixel rate of 10.40 GPixel/s versus 4.800 GPixel/s for the P6300. The UHD 730 also supports FP16 computation at a 2:1 ratio, offering 998.4 GFLOPS, while the P6300 has no listed FP16 throughput, which is a clear feature advantage for the newer part in mixed-precision workloads.

API support also differs, with the UHD 730 supporting DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4, whereas the P6300 is limited to DirectX 12 (11_1), OpenGL 4.4, and Vulkan 1.0. This gives the UHD 730 a functional edge in modern games and applications that leverage newer API features. Both parts share a base clock of 300 MHz, a 15 W TDP, a Ring Bus interface, and system-shared memory with dependent bandwidth, but the UHD 730's boost clock of 1300 MHz is substantially higher than the P6300's 800 MHz.

Head-to-Head Benchmarks

The only direct comparison available is the Geekbench OpenCL test. In this test, the Intel UHD Graphics 730 scores 5988, while the Intel Iris Pro P6300 scores 5712, resulting in a 4.8% victory for the UHD 730. This is a modest but consistent win, placing the UHD 730 in the same performance tier as its nearest rivals, which include the AMD Radeon HD 8730M at 5955 and the NVIDIA Quadro K620M at 5957. The UHD 730 trails these rivals by less than 1%, with deltaPct values of -0.4% and -0.5% respectively, showing it is competitive with entry-level discrete mobile GPUs from a previous generation.

The Iris Pro P6300, despite its loss, also sits in the 33rd percentile of all GPUs, same as the UHD 730. Its nearest rival, the NVIDIA GeForce GTX 670MX, scores 5721, which is only 0.1% higher than the P6300's 5712. The P6300 actually beats the AMD Radeon HD 8790M (5691) by 0.4% and the NVIDIA Quadro M500M (5604) by 1.9%. This indicates that while the UHD 730 is marginally faster in OpenCL, the P6300 is still a capable performer relative to its own contemporary discrete competitors, and the performance gap between these two IGPs is small enough that other system factors could easily tip the balance.

There is no Vulkan benchmark data for the P6300 to compare against the UHD 730's Geekbench Vulkan score of 5870, so the OpenCL result is the sole quantifiable head-to-head metric. Given the P6300's older architecture and lower clock speeds, it is reasonable to extrapolate from the OpenCL result that the UHD 730 would also lead in Vulkan, but this remains unverified in the data.

The Verdict

From the data, the Intel UHD Graphics 730 is the better all-around choice for anyone using modern APIs or running OpenCL workloads. Its 4.8% lead in OpenCL, combined with support for DirectX 12_1, Vulkan 1.4, and FP16 compute, makes it the more future-proof and versatile IGP. It also has a significantly higher pixel rate, which is beneficial for desktop composition and lightweight 3D rendering. The UHD 730's performance is closely matched with discrete GPUs like the AMD Radeon HD 8730M and NVIDIA Quadro K620M, making it a legitimate option for light gaming or productivity tasks on a Rocket Lake system.

The Intel Iris Pro P6300, however, should not be dismissed. Its 384 shading units and 48 TMUs provide a raw compute and texture throughput advantage that the UHD 730 cannot match, despite its lower clock speed. For users running legacy applications that are optimized for older architectures, or for workloads that are heavily texture-bound, the P6300 could outperform the UHD 730 in practice, even though the synthetic benchmark does not reflect this. Its FP32 throughput of 614.4 GFLOPS is 23% higher than the UHD 730's, which could matter in scientific or compute tasks that do not leverage the newer instruction sets.

Ultimately, the choice hinges on platform and workload. If you are building or upgrading a system with a Rocket Lake processor, the UHD 730 is the integrated option you will get, and it is perfectly adequate for basic tasks. If you are maintaining an older Broadwell system with the P6300, there is no compelling reason to upgrade based solely on these benchmark numbers, as the performance delta is small. For a new purchase, the UHD 730's newer API support and higher clock speed make it the safer recommendation.

FAQ

Q: Which GPU has a higher benchmark score in the shared test?

A: The Intel UHD Graphics 730 scores 5988 in Geekbench OpenCL, while the Intel Iris Pro P6300 scores 5712, giving the UHD 730 a 4.8% win.

Q: How does the shading unit count differ between the two?

A: The Intel Iris Pro P6300 has 384 shading units, which is double the 192 shading units found in the Intel UHD Graphics 730.

Q: What is the boost clock difference?

A: The Intel UHD Graphics 730 boosts to 1300 MHz, while the Intel Iris Pro P6300 boosts to 800 MHz, a 500 MHz advantage for the UHD 730.

Q: Do both GPUs support the same DirectX version?

A: No, the Intel UHD Graphics 730 supports DirectX 12 (12_1), whereas the Intel Iris Pro P6300 supports DirectX 12 (11_1).

Q: Which GPU has a higher texture fill rate?

A: The Intel Iris Pro P6300 has a texture rate of 38.40 GTexel/s, which is significantly higher than the Intel UHD Graphics 730's 15.60 GTexel/s.

Q: Are both GPUs still in production?

A: No, both the Intel UHD Graphics 730 and the Intel Iris Pro P6300 are listed as end-of-life products, with release dates of 2021-03-29 and 2014-09-04, respectively.

Specification Differences

| Specification | Intel UHD Graphics 730 | Intel Iris Pro P6300 |

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

| Architecture | Generation 12.1 | Generation 8.0 |

| Process Node | 14 nm+++ | 14 nm |

| Boost Clock | 1300 MHz | 800 MHz |

| Shading Units | 192 | 384 |

| TMUs | 12 | 48 |

| ROPs | 8 | 6 |

| Pixel Rate | 10.40 GPixel/s | 4.800 GPixel/s |

| Texture Rate | 15.60 GTexel/s | 38.40 GTexel/s |

| FP32 Performance | 499.2 GFLOPS | 614.4 GFLOPS |

| FP16 Performance | 998.4 GFLOPS (2:1) | None listed |

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

| OpenGL Support | 4.6 | 4.4 |

| Vulkan Support | 1.4 | 1.0 |

| Release Date | 2021-03-29 | 2014-09-04 |