AMD Radeon R7 Graphics vs Intel Iris Pro Graphics P6300 Comparison

Where Each One Wins

The benchmark data splits cleanly between these two integrated graphics parts, but the split is not symmetrical. The Intel Iris Pro Graphics P6300 wins the only directly comparable test, Geekbench OpenCL, by a substantial margin. The AMD Radeon R7 Graphics, however, has an additional data point in the database: a Geekbench Vulkan score that the Intel part simply does not have recorded. This means the AMD part demonstrates capability in a modern API workload, while the Intel part’s recorded performance is confined to the older OpenCL path.

Looking at the use-case split, the Intel Iris Pro Graphics P6300 is the choice for compute workloads that rely on OpenCL. Its score of 5712 places it in the 33rd percentile of all GPUs in the database, which is modest but ahead of several discrete mobile parts. For users running OpenCL-accelerated applications, the Intel part offers a clear performance advantage. The AMD Radeon R7 Graphics, with its OpenCL score of 4015, sits in the 29th percentile, meaning it trails not only the Intel part but also a broader swath of the GPU field in that specific test.

The AMD part’s Vulkan score of 5980, however, tells a different story. This is a higher raw number than either OpenCL score, and it suggests that in Vulkan-based games or compute tasks, the AMD Radeon R7 Graphics can exceed its OpenCL showing. But because the Intel part has no recorded Vulkan benchmark, the database cannot directly compare the two in that API. The data as recorded shows Intel winning the only head-to-head test, while AMD shows broader API coverage in the recorded results.

For gaming, the distinction is less clear from the raw scores alone. The Intel part’s OpenCL lead does not necessarily translate to gaming performance, as games often depend on driver optimization and specific API paths. The AMD part’s Vulkan result hints at better modern API support, which could matter for newer titles. The verdict from the data: Intel wins the compute comparison that both parts share, while AMD demonstrates a higher peak score in an API that Intel has not recorded results for.

FAQ

Q: Which GPU has the higher Geekbench OpenCL score?

A: The Intel Iris Pro Graphics P6300 scores 5712, while the AMD Radeon R7 Graphics scores 4015. Intel leads by 42.3% in this test.

Q: Does the AMD Radeon R7 Graphics have any benchmark where it outperforms the Intel part?

A: The database records a Geekbench Vulkan score of 5980 for the AMD Radeon R7 Graphics. No Vulkan score is recorded for the Intel Iris Pro Graphics P6300, so a direct comparison in that API is not possible from the available data.

Q: How do these GPUs rank against all other GPUs in the database?

A: The Intel Iris Pro Graphics P6300 ranks in the 33rd percentile, while the AMD Radeon R7 Graphics ranks in the 29th percentile of all GPUs.

Q: Which GPU has a higher pixel fill rate?

A: The AMD Radeon R7 Graphics has a pixel rate of 5.760 GPixel/s, which is higher than the Intel Iris Pro Graphics P6300’s 4.800 GPixel/s.

Q: Which GPU has more texture mapping units?

A: The Intel Iris Pro Graphics P6300 has 48 TMUs, double the 24 TMUs found on the AMD Radeon R7 Graphics.

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

A: The Intel Iris Pro Graphics P6300 has an average score of 5712 based on its single recorded OpenCL result. The AMD Radeon R7 Graphics has an average score of 4998, which is the mean of its two recorded scores (4015 and 5980).

Head-to-Head Benchmarks

The only direct head-to-head test in the database is Geekbench OpenCL, and the results are decisive. The Intel Iris Pro Graphics P6300 scores 5712, while the AMD Radeon R7 Graphics scores 4015. The delta is 42.3% in Intel’s favor, a substantial gap that indicates the Intel architecture handles this compute workload far more efficiently.

To contextualize these scores, the nearest rivals from the database provide useful reference points. The Intel part’s 5712 sits within a tight cluster: the NVIDIA GeForce GTX 670MX scores 5721 (0.1% higher), the NVIDIA GeForce GTX 550 Ti scores 5731 (0.3% higher), and the AMD Radeon HD 8790M scores 5691 (0.4% lower). The Intel part is effectively at parity with these discrete mobile and desktop GPUs, which is notable for an integrated processor graphics solution. The NVIDIA Quadro M500M trails at 5604, meaning the Intel part leads that professional mobile GPU by 1.9%.

The AMD Radeon R7 Graphics’ OpenCL score of 4015 is in a different league. Its nearest rivals include the NVIDIA Quadro 4000 at 4979 (0.4% higher than AMD’s average, but note this comparison uses AMD’s average score of 4998), the AMD Radeon R5 M430 at 5018 (0.4% higher), and the AMD FirePro W4170M at 5034 (0.7% higher). The presence of the NVIDIA GeForce RTX 5060 Ti 16 GB at 4970 in the rival list is a statistical artifact of the database’s averaging, but the point stands: the AMD part’s OpenCL performance is roughly 20% lower than the Intel part’s, based on the head-to-head delta.

The AMD part’s Vulkan score of 5980, however, exceeds the Intel part’s OpenCL score of 5712 by about 4.7%. This is an apples-to-oranges comparison across APIs, but it does indicate that the AMD architecture is capable of higher throughput in Vulkan than the Intel part achieves in OpenCL. Since the database lacks an Intel Vulkan result, the head-to-head remains one-sided, with Intel holding the only direct win.

Specification Differences

The two GPUs differ across nearly every core specification. The Intel Iris Pro Graphics P6300 has a base clock of 300 MHz and a boost clock of 800 MHz, while the AMD Radeon R7 Graphics has no recorded base or boost clock values in the database. This means clock-for-clock comparisons are impossible, but the Intel part’s recorded clocks are the only ones available for analysis.

Shading units are identical: both parts have 384 shading units. The differences begin with texture mapping units, where the Intel part has 48 TMUs versus the AMD part’s 24 TMUs. This is a 2:1 ratio in Intel’s favor and directly explains the texture rate gap: Intel achieves 38.40 GTexel/s, while AMD manages 17.28 GTexel/s, a lead of more than 2.2x for Intel. Raster output units favor AMD, with 8 ROPs versus Intel’s 6 ROPs. This translates to a pixel rate of 5.760 GPixel/s for AMD versus 4.800 GPixel/s for Intel, a 20% advantage for the AMD part.

Floating-point throughput slightly favors Intel: 614.4 GFLOPS versus 553.0 GFLOPS for AMD, a difference of about 11%. Thermal design power also differs, with Intel rated at 15 W and AMD rated at 25 W. Both parts use system-shared memory with system-dependent bandwidth, so no memory capacity, type, or bus width differences exist in the recorded data. The bus interface differs: Intel uses a Ring Bus, while AMD uses an IGP interface. Both are integrated graphics with motherboard-dependent display outputs.

Architecture Differences

The architectural gap between these two parts is significant. The Intel Iris Pro Graphics P6300 is built on Broadwell GT3e silicon, using Intel’s Generation 8.0 architecture from the HD Graphics-W (Broadwell) family. It is fabricated on a 14 nm process at Intel’s own foundry. The AMD Radeon R7 Graphics uses the Spectre Lite chip, based on GCN 2.0 architecture from the GCN 2.0 IGP (Kaveri) generation. It is built on a 28 nm process at GlobalFoundries.

The process node difference is substantial: 14 nm versus 28 nm. This means Intel packs its 384 shading units, 48 TMUs, and 6 ROPs into a smaller transistor footprint, which helps explain the lower 15 W TDP despite higher texture and compute throughput. AMD’s 28 nm process requires more power for its 384 shading units, 24 TMUs, and 8 ROPs, resulting in the 25 W TDP.

The AMD part has recorded transistor and die size data: 2,410 million transistors on a 245 mm² die, yielding a transistor density of 9.8M per mm². The Intel part has no such data recorded. This is notable because AMD’s discrete-class die size is far larger than what one would expect from an integrated GPU, yet it still operates within a 25 W envelope.

API support differs meaningfully. The Intel part supports DirectX 12 (11_1), OpenGL 4.4, and Vulkan 1.0. The AMD part supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.2.170. The AMD part’s higher API versions, particularly Vulkan 1.2.170 versus 1.0, align with its recorded Vulkan benchmark score. The Intel part’s older API support may explain why no Vulkan benchmark is recorded for it. The AMD part also has a recorded predecessor (TeraScale 3 IGP) and successor (GCN 3.0 IGP), while the Intel part has neither.

The Verdict

The data supports a clear but conditional recommendation. For OpenCL compute workloads, the Intel Iris Pro Graphics P6300 is the superior choice. Its score of 5712 beats the AMD Radeon R7 Graphics’ 4015 by 42.3%, and it does so within a 15 W TDP, which is 10 W lower than the AMD part’s 25 W rating. The Intel part also offers more than double the texture rate (38.40 GTexel/s versus 17.28 GTexel/s) and about 11% higher FP32 throughput, making it the stronger compute part in every measured dimension except pixel rate.

For users prioritizing modern API support, the AMD Radeon R7 Graphics has the edge in the recorded feature set. Its Vulkan 1.2.170 support and OpenGL 4.6 exceed the Intel part’s Vulkan 1.0 and OpenGL 4.4. The AMD part’s Vulkan score of 5980 indicates that, in Vulkan workloads, it can outperform the Intel part’s best recorded OpenCL result. However, because the database has no Intel Vulkan score, this advantage cannot be quantified as a head-to-head win.

The pixel rate difference also favors AMD: 5.760 GPixel/s versus 4.800 GPixel/s, a 20% advantage. This could matter for fill-rate-bound scenarios, though the Intel part’s massive texture rate lead suggests it excels in texture-heavy workloads.

The percentile rankings place both parts in the lower third of the GPU field: Intel at the 33rd percentile, AMD at the 29th. Neither part is a high performer by modern standards, but within the integrated GPU segment, the Intel part’s OpenCL performance positions it alongside discrete GPUs like the NVIDIA GeForce GTX 670MX and GTX 550 Ti, which score within 0.3% of it. The AMD part’s OpenCL score places it near the NVIDIA Quadro 4000 and AMD FirePro W4170M, which are older professional parts.

The practical verdict: choose the Intel Iris Pro Graphics P6300 for OpenCL compute performance, lower power draw, and superior texture throughput. Choose the AMD Radeon R7 Graphics for Vulkan capability, higher pixel fill rate, and more modern API support. The database records one win for Intel and zero for AMD in direct head-to-head tests, but the AMD part’s Vulkan result suggests it has strengths that the head-to-head metric does not capture. Users with workloads that depend on OpenCL should favor Intel; users targeting Vulkan should favor AMD.