AMD Radeon HD 7730M vs AMD Radeon R7 M465 Comparison

FAQ

Q: Which GPU has the higher benchmark score in the database?

A: The AMD Radeon HD 7730M records a Geekbench OpenCL score of 6581, while the AMD Radeon R7 M465 scores 5841. The HD 7730M leads by 12.7%.

Q: How does each GPU compare to its nearest rivals?

A: The HD 7730M sits 0.4% ahead of the Intel UHD Graphics P750 (6554) and 1% ahead of the NVIDIA GeForce GTX 670M (6513), but trails the AMD Radeon R7 M460 (6612) by 0.5%. The R7 M465 is 1.9% ahead of the NVIDIA GeForce GTX 550 Ti (5731), yet sits 1.5% behind the Intel UHD Graphics 730 (5929) and 1.9% behind the AMD Radeon HD 8730M (5955).

Q: What are the architectural generations of these two GPUs?

A: The HD 7730M uses GCN 1.0 architecture on the Chelsea chip, belonging to the London (HD 7700M) generation. The R7 M465 uses GCN 3.0 architecture on the Topaz chip, belonging to the Gem System (R7 M400) generation.

Q: Which GPU has a higher boost clock?

A: The R7 M465 boosts to 1024 MHz, substantially higher than the HD 7730M's boost of 675 MHz. The base clocks also differ, with the R7 M465 at 730 MHz versus 575 MHz for the HD 7730M.

Q: How do the memory subsystems differ?

A: The HD 7730M uses 2 GB of DDR3 on a 128-bit bus, delivering 28.80 GB/s bandwidth. The R7 M465 uses 2 GB of GDDR5 on a 64-bit bus, delivering 36.00 GB/s bandwidth. Despite the narrower bus, the R7 M465's faster memory type yields higher bandwidth.

Q: What is the percentile ranking for each GPU against all GPUs?

A: The HD 7730M ranks at the 38th percentile, while the R7 M465 ranks at the 33rd percentile. This places the HD 7730M higher in the overall distribution of GPU performance.

Architecture Differences

The two GPUs represent different points in AMD's mobile graphics evolution. The HD 7730M is built on GCN 1.0, the first implementation of AMD's Graphics Core Next architecture, using the Chelsea chip. It belongs to the London generation, which corresponds to the HD 7700M family. The R7 M465, by contrast, uses GCN 3.0 on the Topaz chip, part of the Gem System generation for the R7 M400 series. This generational gap matters: GCN 3.0 brought architectural refinements in compute and memory efficiency that the older design lacks.

Both chips are fabricated on the same 28 nm process at TSMC. Transistor counts are close, with the HD 7730M at 1,500 million and the R7 M465 at 1,550 million. Die sizes are also similar, 123 mm² versus 125 mm², yielding transistor densities of 12.2M per mm² and 12.4M per mm² respectively. The newer chip packs slightly more transistors into a marginally larger die, but the difference is small enough that architectural efficiency, not raw silicon size, drives the performance gap.

The compute resources differ significantly. The HD 7730M carries 512 shading units, 32 texture mapping units, and 16 render output units. The R7 M465 has fewer of each: 384 shading units, 24 TMUs, and 8 ROPs. This reduction in execution resources is counterbalanced by higher clock speeds on the R7 M465. The base clock of 730 MHz and boost clock of 1024 MHz far exceed the HD 7730M's 575 MHz base and 675 MHz boost. The result is that the R7 M465 achieves higher raw throughput in certain metrics, such as texture rate (24.58 GTexel/s versus 21.60 GTexel/s) and FP32 compute (786.4 GFLOPS versus 691.2 GFLOPS), despite having fewer cores.

Memory architecture also diverges. The HD 7730M uses DDR3 on a 128-bit bus, running at 900 MHz with 1800 Mbps effective speed. The R7 M465 uses GDDR5 on a 64-bit bus, running at 1125 MHz with 4.5 Gbps effective speed. The GDDR5 memory provides 36.00 GB/s of bandwidth versus 28.80 GB/s for the DDR3 configuration. This is a notable advantage for the R7 M465, since bandwidth often limits texture-heavy workloads. However, the HD 7730M's wider bus may offer latency characteristics that the narrower GDDR5 implementation cannot fully replicate.

The bus interface also differs. The HD 7730M connects via PCIe 2.0 x16, while the R7 M465 uses PCIe 3.0 x8. The newer standard allows higher per-lane throughput, but the x8 lane count means the R7 M465's total interface bandwidth is comparable to the older x16 link. For mobile GPUs, this difference rarely limits gaming performance, but it does reflect the design era of each chip.

API support shows another generational step. The HD 7730M supports DirectX 12 (11_1), while the R7 M465 supports DirectX 12 (12_0). Both support OpenGL 4.6 and Vulkan 1.2.170. The higher DirectX feature level on the R7 M465 means it can handle newer rendering features, though the practical impact depends on the software workload.

Head-to-Head Benchmarks

The database contains one head-to-head benchmark: Geekbench OpenCL. The HD 7730M scores 6581, and the R7 M465 scores 5841. This gives the HD 7730M a decisive 12.7% advantage. The margin is substantial and consistent with the percentile rankings: the HD 7730M sits at the 38th percentile, the R7 M465 at the 33rd.

The 12.7% gap is interesting given the architectural differences. The R7 M465 has higher clocks, more bandwidth, and a newer architecture, yet it loses in this compute-oriented benchmark. The HD 7730M's larger pool of shading units (512 versus 384) likely explains the result. OpenCL workloads often scale with shader count, and the HD 7730M has 33% more shading units than its rival. Even with the R7 M465's higher FP32 rate (786.4 GFLOPS versus 691.2 GFLOPS), the HD 7730M's broader execution width wins in practice.

Looking at nearest rivals for context, the HD 7730M's score of 6581 places it just 0.4% above the Intel UHD Graphics P750 (6554) and 1% above the NVIDIA GeForce GTX 670M (6513). It trails the AMD Radeon R7 M460 (6612) by only 0.5%, meaning the HD 7730M is competitive with a newer entry in the same family. The R7 M465's score of 5841 puts it 1.9% above the NVIDIA GeForce GTX 550 Ti (5731), but 1.5% below the Intel UHD Graphics 730 (5929) and 1.9% below the AMD Radeon HD 8730M (5955). The R7 M465 sits in a lower performance tier, close to integrated graphics solutions.

The data shows a clear verdict: the HD 7730M outperforms the R7 M465 in the one recorded benchmark, and the margin is large enough to be meaningful. The R7 M465's newer architecture and faster memory do not translate into a benchmark win. Instead, the HD 7730M's shader count advantage and wider memory bus appear to deliver better compute performance.

Specification Differences

| Specification | AMD Radeon HD 7730M | AMD Radeon R7 M465 |

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

| Chip | Chelsea | Topaz |

| Architecture | GCN 1.0 | GCN 3.0 |

| Generation | London (HD 7700M) | Gem System (R7 M400) |

| Transistors | 1,500 million | 1,550 million |

| Die Size | 123 mm² | 125 mm² |

| Transistor Density | 12.2M / mm² | 12.4M / mm² |

| Base Clock | 575 MHz | 730 MHz |

| Boost Clock | 675 MHz | 1024 MHz |

| Memory Type | DDR3 | GDDR5 |

| Memory Bus Width | 128 bit | 64 bit |

| Memory Bandwidth | 28.80 GB/s | 36.00 GB/s |

| Shading Units | 512 | 384 |

| TMUs | 32 | 24 |

| ROPs | 16 | 8 |

| Pixel Rate | 10.80 GPixel/s | 8.192 GPixel/s |

| Texture Rate | 21.60 GTexel/s | 24.58 GTexel/s |

| FP32 | 691.2 GFLOPS | 786.4 GFLOPS |

| TDP | 25 W | Not specified |

| Bus Interface | PCIe 2.0 x16 | PCIe 3.0 x8 |

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

| Release Date | 2012-04-23 | 2016-05-14 |

| Production Status | End-of-life | End-of-life |

The specification table reveals a tradeoff: the R7 M465 has higher clocks and newer memory, while the HD 7730M has more execution units and a wider memory bus. The R7 M465's FP16 rate matches its FP32 rate at 786.4 GFLOPS (1:1), a feature the HD 7730M lacks entirely. The HD 7730M has no recorded FP16 capability.

The Verdict

The benchmark data is unambiguous. The AMD Radeon HD 7730M wins the only recorded head-to-head test, beating the R7 M465 by 12.7% in Geekbench OpenCL. It also holds a higher percentile ranking (38 versus 33). Users seeking raw compute performance from these two options should favor the HD 7730M.

The R7 M465 is not without merit. Its higher boost clock (1024 MHz versus 675 MHz) and faster GDDR5 memory (36.00 GB/s versus 28.80 GB/s) make it a capable choice for memory-bound tasks. Its newer GCN 3.0 architecture supports DirectX 12 (12_0), which the older GCN 1.0 design cannot fully match. But these advantages do not overcome the HD 7730M's 512 shading units, which provide a wider execution path for parallel workloads.

The HD 7730M also has a lower TDP at 25 W, while the R7 M465's power draw is not specified. For mobile systems where thermal headroom is limited, the HD 7730M offers better performance per watt based on the available data. The R7 M465's unspecified TDP leaves a gap in the comparison, but the HD 7730M's confirmed 25 W figure gives it a clear efficiency claim.

The release dates tell a story: the HD 7730M launched in 2012, the R7 M465 in 2016. Four years of architectural progress did not translate into a performance win in the recorded benchmark. This is a case where core count and memory bus width outweighed clock speed and memory technology.

Where Each One Wins

AMD Radeon HD 7730M wins in the following categories:

• Overall benchmark performance: 6581 versus 5841 in Geekbench OpenCL, a 12.7% lead.
• Percentile ranking: 38th versus 33rd among all GPUs.
• Shader throughput potential: 512 shading units versus 384, which drives its OpenCL advantage.
• Pixel fill rate: 10.80 GPixel/s versus 8.192 GPixel/s, thanks to its 16 ROPs.
• Power efficiency: a confirmed 25 W TDP versus no TDP data for the R7 M465.
• Wider memory bus: 128 bit versus 64 bit, which can improve latency characteristics in some workloads.

AMD Radeon R7 M465 wins in the following categories:

• Clock speeds: base 730 MHz and boost 1024 MHz, versus 575 MHz and 675 MHz on the HD 7730M.
• Memory bandwidth: 36.00 GB/s versus 28.80 GB/s, enabled by GDDR5 memory.
• Texture rate: 24.58 GTexel/s versus 21.60 GTexel/s, despite fewer TMUs.
• FP32 compute: 786.4 GFLOPS versus 691.2 GFLOPS.
• FP16 support: 786.4 GFLOPS (1:1), a capability absent on the HD 7730M.
• DirectX feature level: 12 (12_0) versus 12 (11_1).
• Bus interface generation: PCIe 3.0 versus PCIe 2.0.
• Newer architecture: GCN 3.0 versus GCN 1.0.

Use-case guidance from the data: the HD 7730M suits workloads that stress parallel shader execution, such as OpenCL compute tasks, where its 512 shading units deliver a clear win. The R7 M465 suits workloads that depend on memory bandwidth or require higher clocks, such as texture-heavy rendering or tasks that benefit from FP16 throughput. For legacy DirectX 11_1 titles, the HD 7730M is the stronger pick; for DirectX 12_0 features, the R7 M465 has the edge. The HD 7730M is the better choice for users prioritizing raw benchmark scores and confirmed low power draw, while the R7 M465 appeals to those who value modern memory technology and architectural features.