AMD Radeon R5 M430 vs AMD Radeon R7 M365X Comparison

The AMD Radeon R7 M365X and AMD Radeon R5 M430 are both end-of-life mobile graphics parts from AMD’s GCN 1.0 generation, built on the same 28 nm TSMC process. Despite sharing an architecture and foundry, the data shows they are positioned differently within the Gem System lineup, with the R7 M365X delivering a decisive average benchmark advantage of 5416 points versus 5018 points for the R5 M430. That 7.9% gap in average score translates into a clear performance hierarchy, though the R5 M430 counters with larger memory capacity and a higher pixel rate, creating distinct use cases for each.

Where Each One Wins

The R7 M365X is the clear winner in raw compute throughput. Its Geekbench OpenCL score of 5939 outpaces the R5 M430’s 5152 by a substantial 15.3%, making it the better choice for applications that leverage general-purpose GPU compute. This advantage stems from a larger shader array and faster memory subsystem, which we will detail in the architecture and specification sections. For users running OpenCL-accelerated workloads—such as video encoding filters, physics simulations, or data-parallel tasks—the R7 M365X’s lead is significant enough to feel in real-world execution times.

The R5 M430, conversely, wins on memory capacity and pixel throughput. It ships with 4 GB of VRAM versus the R7 M365X’s 1 GB, a fourfold difference that allows it to hold larger textures and datasets in local memory. Its pixel rate of 6.840 GPixel/s also edges out the R7 M365X’s 6.600 GPixel/s, a 3.6% advantage that can benefit fill-rate-bound scenarios like high-resolution texture blitting or certain legacy rendering paths. However, its average benchmark score of 5018 places it in the 30th percentile of all GPUs, while the R7 M365X sits at the 32nd percentile—a narrow margin that underscores how close these parts are in overall capability.

The head-to-head results reinforce this split: the R7 M365X wins both recorded tests, but the Vulkan margin is razor-thin at just 0.2% (4893 vs 4884). In Vulkan workloads, the two GPUs are effectively tied, meaning the R5 M430’s extra memory could make it the more practical choice for modern games that require more than 1 GB of framebuffer. The R7 M365X’s OpenCL dominance, however, makes it the superior option for compute-heavy tasks where memory capacity is less critical than raw FP32 throughput.

Architecture Differences

Both GPUs are built on GCN 1.0, AMD’s first-generation Graphics Core Next architecture, and are fabricated by TSMC on a 28 nm process. The transistor density is identical at 12.3M per mm², but the chips themselves differ in scale. The R7 M365X uses the “Litho” chip, which packs 950 million transistors into a 77 mm² die. The R5 M430 uses the smaller “Jet” chip, with 690 million transistors on a 56 mm² die. This 260 million transistor difference and 21 mm² die-size gap explain the R7 M365X’s higher compute resource count.

The compute configuration diverges accordingly. The R7 M365X features 384 shading units, 24 texture mapping units (TMUs), and 8 raster operation units (ROPs). The R5 M430 scales down to 320 shading units, 20 TMUs, and retains 8 ROPs. That translates to a 20% advantage in shader count and TMU count for the R7 M365X, which directly feeds its higher texture rate of 19.80 GTexel/s versus 17.10 GTexel/s for the R5 M430. The ROP count being equal means pixel fill rate is determined primarily by clock speeds, where the R5 M430’s higher boost clock gives it the slight pixel rate edge noted earlier.

Memory architecture is a major differentiator. The R7 M365X uses 1 GB of GDDR5 on a 128-bit bus, yielding 64.00 GB/s of bandwidth. The R5 M430 uses 4 GB of DDR3 on a 64-bit bus, which delivers only 16.00 GB/s—a quarter of the bandwidth. This is the single largest architectural gap between the two, and it explains why the R7 M365X excels in bandwidth-sensitive OpenCL workloads while the R5 M430’s larger pool helps it hold more data despite slower transfer speeds. Both parts support DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170, so API feature parity is complete.

Head-to-Head Benchmarks

The Geekbench OpenCL test is the R7 M365X’s showcase. Its score of 5939 beats the R5 M430’s 5152 by 15.3%, the largest delta in any comparison between these two parts. This result is consistent with the R7 M365X’s 384 shaders and 64.00 GB/s bandwidth, which together enable substantially higher GPGPU throughput. For context, the R7 M365X’s nearest rival in average score is the NVIDIA Quadro M4000 at 5467, which the R7 M365X trails by just 0.9%; the R5 M430’s closest competitor is the AMD FirePro W4170M at 5034, which the R5 M430 trails by 0.3%. These rival deltas show both cards are tightly clustered with professional mobile GPUs of their era.

The Geekbench Vulkan test tells a different story. The R7 M365X scores 4893, just 0.2% ahead of the R5 M430’s 4884—a statistical tie. This near-parity suggests that Vulkan’s lower-level API overhead mitigates the R7 M365X’s hardware advantages, or that the test is more dependent on factors where the two cards are similar, such as ROP count and driver optimization. The R5 M430’s higher boost clock of 855 MHz versus the R7 M365X’s unspecified boost clock (the 780 MHz base is listed for the R5 M430 only) may help close the gap in this workload.

Across both tests, the R7 M365X wins 2-0, but the average benchmark scores tell a more nuanced story. The R7 M365X averages 5416, which is 7.9% above the R5 M430’s 5018. That margin is meaningful but not overwhelming, and the R5 M430’s 4 GB memory capacity could be a decisive factor in games or applications that exceed the R7 M365X’s 1 GB framebuffer. The R7 M365X’s percentile rank of 32 versus the R5 M430’s 30 reflects this modest overall separation.

Specification Differences

The following table highlights only the fields where the two GPUs differ, based on the data available:

| Specification | AMD Radeon R7 M365X | AMD Radeon R5 M430 |

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

| Chip | Litho | Jet |

| Generation | Gem System (R7 M300) | Gem System (R5 M400) |

| Transistors | 950 million | 690 million |

| Die Size | 77 mm² | 56 mm² |

| Base Clock | Not specified | 780 MHz |

| Boost Clock | Not specified | 855 MHz |

| Memory Size | 1024 MB | 4 GB |

| Memory Type | GDDR5 | DDR3 |

| Memory Bus Width | 128 bit | 64 bit |

| Memory Bandwidth | 64.00 GB/s | 16.00 GB/s |

| Shading Units | 384 | 320 |

| TMUs | 24 | 20 |

| Pixel Rate | 6.600 GPixel/s | 6.840 GPixel/s |

| Texture Rate | 19.80 GTexel/s | 17.10 GTexel/s |

| FP32 | 633.6 GFLOPS | 547.2 GFLOPS |

| Slot Width | Not specified | IGP |

| Display Outputs | Not specified | Portable Device Dependent |

| Release Date | 2015-05-04 | Not specified |

| Geekbench OpenCL | 5939 | 5152 |

| Geekbench Vulkan | 4893 | 4884 |

| Avg Benchmark Score | 5416 | 5018 |

| Percentile vs All GPUs | 32 | 30 |

The R7 M365X also has a higher transistor density per mm² implicitly (950M / 77 = 12.3M vs 690M / 56 = 12.3M, both equal), so that field is not listed as a difference. The R5 M430 is explicitly an integrated GPU (IGP) with portable-device-dependent outputs, while the R7 M365X’s slot width and outputs are unspecified in the data.

FAQ

Q: Which GPU is faster in OpenCL compute?

A: The AMD Radeon R7 M365X is significantly faster, scoring 5939 in Geekbench OpenCL versus 5152 for the AMD Radeon R5 M430, a 15.3% advantage.

Q: How do the two compare in Vulkan performance?

A: They are effectively tied. The R7 M365X scores 4893, just 0.2% ahead of the R5 M430’s 4884.

Q: Does the R5 M430 have any advantage over the R7 M365X?

A: Yes, it offers 4 GB of DDR3 memory versus the R7 M365X’s 1 GB of GDDR5, and a slightly higher pixel rate of 6.840 GPixel/s compared to 6.600 GPixel/s.

Q: What is the memory bandwidth difference?

A: The R7 M365X has 64.00 GB/s of bandwidth over a 128-bit bus, while the R5 M430 has 16.00 GB/s over a 64-bit bus—a fourfold difference favoring the R7 M365X.

Q: Are there any architectural similarities between the two?

A: Both use AMD’s GCN 1.0 architecture, are built on a 28 nm TSMC process, have 8 ROPs, and support DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170.

Q: How do their average scores compare to their nearest rivals?

A: The R7 M365X averages 5416, trailing the NVIDIA Quadro M4000 (5467) by 0.9% and leading the Intel UHD Graphics P630 (5370) by 0.9%. The R5 M430 averages 5018, trailing the AMD FirePro W4170M (5034) by 0.3% and leading the AMD Radeon R7 Graphics (4998) by 0.4%.