AMD Radeon HD 7730M vs NVIDIA GeForce GTX 750 Comparison

The NVIDIA GeForce GTX 750 and AMD Radeon HD 7730M represent two distinct approaches to mid-range graphics from different eras and market segments. The data shows that in the single available head-to-head comparison, the GeForce GTX 750 decisively outperforms the Radeon HD 7730M, but the two parts diverge significantly in architecture, memory configuration, and feature support. This analysis breaks down the benchmark results, architectural differences, and specification gaps between the two end-of-life products.

Head-to-Head Benchmarks

The only directly comparable benchmark result in the data set is the Geekbench OpenCL test. In this test, the NVIDIA GeForce GTX 750 scores 9,315 points, while the AMD Radeon HD 7730M scores 6,581 points. This yields a delta of 41.5% in favor of the NVIDIA part, a substantial margin that places the GTX 750 firmly ahead in compute-heavy workloads. To contextualize this, the GTX 750 sits at the 40th percentile of all GPUs, while the Radeon HD 7730M sits at the 38th percentile—a narrow overall positioning gap that masks the large OpenCL delta. The average benchmark score for the GTX 750 is 7,222, while the HD 7730M averages 6,581, meaning the AMD part trails by approximately 9.7% in average performance across all collected results.

Looking at the GTX 750’s nearest rivals, its average score of 7,222 is just 0.3% ahead of the AMD Radeon Vega 8 Mobile (7,203) and 0.7% ahead of both the NVIDIA GeForce GTX 560 SE (7,171) and the Intel Iris Pro Graphics P580 (7,170). Interestingly, the GTX 750 also edges out the NVIDIA GeForce GTX 970 (7,157) by 0.9%, though that delta is within typical run-to-run variance. For the Radeon HD 7730M, its average score of 6,581 places it 0.4% ahead of the Intel UHD Graphics P750 (6,554) and 1.0% ahead of the NVIDIA GeForce GTX 670M (6,513). It trails the AMD Radeon R7 M460 (6,612) by 0.5%. The GTX 750’s OpenCL advantage over the HD 7730M is far larger than the gap between either card and its immediate competitors, indicating that the NVIDIA part is in a different performance class for compute tasks.

Beyond the OpenCL result, the GTX 750 has additional benchmark data points: a Geekbench Metal score of 4,274 and a Geekbench Vulkan score of 8,078. The HD 7730M has no corresponding Metal or Vulkan scores in the data, limiting cross-API comparisons. The GTX 750 also holds a 1–0 win count in head-to-head tests, with no wins for the AMD part, reinforcing its overall superiority in the measured workload.

Architecture Differences

The two GPUs are built on fundamentally different architectures. The NVIDIA GeForce GTX 750 uses the GM107 chip based on the Maxwell architecture, while the AMD Radeon HD 7730M uses the Chelsea chip based on GCN 1.0. Both are manufactured on the same 28 nm process node at TSMC, but the transistor counts differ: the GTX 750 integrates 1,870 million transistors on a 148 mm² die, yielding a transistor density of 12.6 million per mm². The HD 7730M packs 1,500 million transistors onto a smaller 123 mm² die, achieving a density of 12.2 million per mm². The GTX 750’s higher transistor count and slightly denser layout suggest a more complex design despite its larger physical footprint.

Clock speeds diverge sharply. The GTX 750 runs at a base clock of 1,020 MHz with a boost clock of 1,085 MHz, while the HD 7730M operates at a much lower base of 575 MHz and a boost of 675 MHz. This nearly 2x clock advantage for the NVIDIA part is a primary driver of its performance lead, especially given that both cards have identical shading unit counts (512) and texture mapping unit counts (32). The Radeon’s lower clocks directly translate into reduced throughput: the GTX 750 achieves a pixel rate of 17.36 GPixel/s and a texture rate of 34.72 GTexel/s, versus just 10.80 GPixel/s and 21.60 GTexel/s for the HD 7730M. Similarly, FP32 performance (the standard for general-purpose compute) is 1,111.0 GFLOPS on the GTX 750 versus 691.2 GFLOPS on the AMD part—a 60.7% advantage for NVIDIA.

Memory architecture also differs fundamentally. The GTX 750 uses 1,024 MB of GDDR5 memory on a 128-bit bus, with a memory clock of 1,253 MHz (5 Gbps effective) delivering 80.19 GB/s of bandwidth. The HD 7730M has twice the capacity at 2 GB, but uses DDR3 memory on the same 128-bit bus, clocked at 900 MHz (1,800 Mbps effective), yielding only 28.80 GB/s—just 35.9% of the NVIDIA card’s bandwidth. This bandwidth disparity is critical for memory-intensive workloads and explains part of the OpenCL gap. The GTX 750 also supports PCIe 3.0 x16, while the HD 7730M is limited to PCIe 2.0 x16, reducing host-to-device transfer speeds.

API support further separates the two. Both support DirectX 12 and OpenGL 4.6, but the GTX 750 lists Vulkan 1.4 while the HD 7730M lists Vulkan 1.2.170. The GTX 750’s DirectX 12 feature level is 11_0, whereas the HD 7730M’s is 11_1, giving the AMD part a slightly higher feature level for certain DX12 paths. Power consumption differs markedly: the GTX 750 has a TDP of 55 W with a suggested PSU of 250 W, while the HD 7730M draws only 25 W, reflecting its mobile-oriented design. The GTX 750 is a single-slot card with no power connectors, while the HD 7730M has no slot width or power connector data, consistent with a mobile/portable device.

FAQ

Q: Which GPU wins the only shared benchmark?

A: The NVIDIA GeForce GTX 750 wins the Geekbench OpenCL test with a score of 9,315 versus 6,581 for the AMD Radeon HD 7730M, a delta of 41.5%. This gives the GTX 750 a 1–0 win record in head-to-head contests.

Q: How do their compute capabilities compare?

A: The GTX 750 delivers 1,111.0 GFLOPS of FP32 performance, while the HD 7730M delivers 691.2 GFLOPS—a 60.7% advantage for NVIDIA. Both have 512 shading units and 32 TMUs, but the GTX 750 runs at higher clocks (1,020/1,085 MHz) versus 575/675 MHz on the AMD part.

Q: What are the memory differences?

A: The GTX 750 uses 1,024 MB of GDDR5 on a 128-bit bus with 80.19 GB/s bandwidth. The HD 7730M uses 2 GB of DDR3 on the same 128-bit bus but achieves only 28.80 GB/s. The GTX 750’s bandwidth is 51.39 GB/s higher, a 2.78x advantage.

Q: Are there architectural generation gaps?

A: Yes. The GTX 750 is built on NVIDIA’s Maxwell architecture (GM107 chip) and belongs to the GeForce 700 generation, while the HD 7730M is based on AMD’s GCN 1.0 (Chelsea chip) from the London/HD 7700M generation. Both use a 28 nm TSMC process, but the GTX 750 has 1,870 million transistors versus 1,500 million on the HD 7730M.

Q: How does the GTX 750 compare to its nearest rivals?

A: The GTX 750’s average score of 7,222 is 0.3% ahead of the AMD Radeon Vega 8 Mobile (7,203) and 0.7% ahead of the GTX 560 SE (7,171). It also edges out the GeForce GTX 970 (7,157) by 0.9%. The HD 7730M’s average of 6,581 trails the AMD Radeon R7 M460 (6,612) by 0.5% but beats the Intel UHD Graphics P750 (6,554) by 0.4%.

Q: What is the launch MSRP of the GTX 750?

A: The NVIDIA GeForce GTX 750 had a launch MSRP of 119 USD. The AMD Radeon HD 7730M has no launch MSRP listed in the data.

Specification Differences

| Specification | NVIDIA GeForce GTX 750 | AMD Radeon HD 7730M |

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

| Chip | GM107 | Chelsea |

| Architecture | Maxwell | GCN 1.0 |

| Generation | GeForce 700 | London (HD 7700M) |

| Transistors | 1,870 million | 1,500 million |

| Die Size | 148 mm² | 123 mm² |

| Transistor Density | 12.6M / mm² | 12.2M / mm² |

| Base Clock | 1020 MHz | 575 MHz |

| Boost Clock | 1085 MHz | 675 MHz |

| Memory Clock | 1253 MHz (5 Gbps effective) | 900 MHz (1800 Mbps effective) |

| Memory Size | 1024 MB | 2 GB |

| Memory Type | GDDR5 | DDR3 |

| Memory Bandwidth | 80.19 GB/s | 28.80 GB/s |

| Pixel Rate | 17.36 GPixel/s | 10.80 GPixel/s |

| Texture Rate | 34.72 GTexel/s | 21.60 GTexel/s |

| FP32 Performance | 1,111.0 GFLOPS | 691.2 GFLOPS |

| TDP | 55 W | 25 W |

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

| Display Outputs | 2x DVI, 1x mini-HDMI 1.4a | Portable Device Dependent |

| Vulkan Version | 1.4 | 1.2.170 |

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

| Release Date | 2014-02-17 | 2012-04-23 |

| Predecessor | GeForce 600 | Vancouver |

| Successor | GeForce 900 | Solar System |

| Launch MSRP | 119 USD | None |

The table shows identical shading units (512), TMUs (32), and ROPs (16) for both, but every clock and rate metric favors the GTX 750. The HD 7730M compensates with double the memory capacity and a lower TDP, suited for portable devices.

The Verdict

The data is unambiguous: the NVIDIA GeForce GTX 750 outperforms the AMD Radeon HD 7730M in the one shared benchmark by 41.5%, and its architectural advantages reinforce that result. For compute-heavy workloads—represented by Geekbench OpenCL—the GTX 750 is the clear choice, delivering 60.7% higher FP32 throughput and 2.78x the memory bandwidth. The 512 shading units on both cards mean the GTX 750’s higher clocks (1,085 MHz boost vs 675 MHz boost) are the primary driver of its lead, along with its GDDR5 memory versus the HD 7730M’s DDR3.

The HD 7730M does offer advantages in specific contexts. Its 2 GB of memory doubles the GTX 750’s 1 GB, which could benefit applications requiring larger frame buffers, though the lower bandwidth (28.80 GB/s) limits its utility. Its 25 W TDP versus 55 W makes it far more power-efficient, suited to thin-and-light portables where thermal and power constraints dominate. Its DirectX 12 feature level of 11_1 is slightly higher than the GTX 750’s 11_0, a minor edge for certain DX12 paths. The HD 7730M also lacks a launch MSRP, while the GTX 750 carries a 119 USD launch price, but the GTX 750’s end-of-life status means it was designed for desktop expansion cards, whereas the HD 7730M is a mobile part with portable-device-dependent outputs.

For desktop users seeking raw compute performance, the GTX 750 is the only rational pick—it wins the head-to-head, ranks at the 40th percentile versus the HD 7730M’s 38th, and its nearest rivals are all within 1% of its average score, indicating it sits in a competitive but solidly mid-tier position. The HD 7730M is better suited to integrated or low-power mobile scenarios where its 25 W TDP and 2 GB capacity are assets, despite its lower sustained performance. In pure performance terms, the GTX 750 is the superior GPU; the HD 7730M’s niche is efficiency and memory capacity, not speed. The benchmark results leave no room for ambiguity: NVIDIA wins decisively in every measured compute metric.