NVIDIA GeForce GT 730M vs NVIDIA GeForce GT 755M Comparison

Where Each One Wins

The recorded data splits these two mobile Kepler GPUs into clear roles. The NVIDIA GeForce GT 755M wins the only head-to-head benchmark available in the database, the Geekbench OpenCL test, by a substantial 58.8% margin. That is the entirety of the competitive picture: the GT 755M takes the single measured win, while the GT 730M records zero benchmark victories in the comparison.

Looking beyond the direct matchup, the GT 755M lands at the 24th percentile of all GPUs in the database, with an average benchmark score of 4033. Its nearest rivals include the AMD FirePro M4150 at 4013, which is only 0.5% slower, and the Intel HD Graphics 630 at 4075, which is 1% faster. The AMD Radeon HD 6850 X2 trails at 3977, 1.4% behind, while the AMD Radeon RX 9060 XT 8 GB sits 1.5% ahead at 4093. This places the GT 755M in a tight cluster where it is competitive with entry-level desktop integrated graphics and older discrete parts.

The GT 730M, by contrast, holds the 20th percentile of all GPUs and an average score of 3316. Its nearest rivals are the Intel HD Graphics 530 at 3332, a 0.5% gap in favor of Intel, and the NVIDIA GeForce 920M at 3287, which trails by 0.9%. The Intel HD Graphics P4600 sits 2.2% ahead at 3389, while the NVIDIA GeForce GT 640 is 3.3% behind at 3210. The GT 730M thus competes with integrated graphics from Intel's Skylake generation and low-end NVIDIA mobile parts.

The use case split is therefore straightforward: the GT 755M is the choice for any workload that stresses raw compute throughput, as evidenced by its OpenCL dominance. The GT 730M offers a lower performance envelope and appears suited only to less demanding tasks where its reduced power draw might be relevant. There is no benchmark in the database where the GT 730M comes out ahead of the GT 755M.

Architecture Differences

Both GPUs share the same GK107 chip, the Kepler architecture, and a 28 nm process from TSMC. Transistor counts are identical at 1,270 million, and die size matches at 118 mm², yielding the same transistor density of 10.8M per mm². Both are MXM modules with no power connectors, both use a PCIe 3.0 x16 bus interface, and both support DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175. Display outputs are listed as portable device dependent for both.

The differences appear in clock speeds and memory. The GT 755M runs a base clock of 980 MHz with a boost clock of 1020 MHz, while the GT 730M is locked at 725 MHz for both base and boost. That is a significant clock advantage for the GT 755M, and it directly translates into higher fill rates and compute throughput.

Memory configuration is where the two diverge most sharply. The GT 755M carries 2 GB of GDDR5 at 1350 MHz, which the database records as 5.4 Gbps effective, on a 128 bit bus. This yields a memory bandwidth of 86.40 GB/s. The GT 730M also has 2 GB on a 128 bit bus, but uses DDR3 at 900 MHz, recorded as 1800 Mbps effective, producing just 28.80 GB/s of bandwidth. That is a threefold difference in memory bandwidth in favor of the GT 755M, a gap that will heavily influence any memory-bound workload.

Shading units, texture mapping units, and render output units are identical: 384, 32, and 16 respectively. The GT 755M achieves a pixel rate of 8.160 GPixel/s and a texture rate of 32.64 GTexel/s, while the GT 730M manages 5.800 GPixel/s and 23.20 GTexel/s. FP32 compute is rated at 783.4 GFLOPS for the GT 755M versus 556.8 GFLOPS for the GT 730M. Neither GPU has ray tracing cores or tensor cores, and neither lists FP16 support.

The GT 755M is rated at 50 W TDP, while the GT 730M draws 33 W. The GT 755M also released later, on 2013-06-24, whereas the GT 730M appeared on 2013-01-19. Both are end-of-life products, both succeeded the GeForce 600M generation, and both were followed by the GeForce 800M. The GT 755M has no launch MSRP recorded, and neither does the GT 730M.

Head-to-Head Benchmarks

The database contains one direct comparison between these two GPUs: the Geekbench OpenCL test. The GT 755M scores 4934, while the GT 730M scores 3107. That is a delta of 58.8% in favor of the GT 755M. In absolute terms, the GT 755M produces roughly 1.6 times the OpenCL score of the GT 730M.

Contextualizing those numbers against their respective peer groups sharpens the picture. The GT 755M's 4934 OpenCL score is its highest recorded benchmark, and it pushes the card's average to 4033. The GT 730M's OpenCL score of 3107 is its lower recorded result; its Geekbench Vulkan score is higher at 3524. Notably, the GT 755M has no Vulkan result in the database, so cross-API comparisons are limited to OpenCL alone.

Looking at the rival clusters, the GT 755M's average of 4033 puts it within a narrow band: it is 0.5% ahead of the AMD FirePro M4150, 1% behind the Intel HD Graphics 630, 1.4% ahead of the AMD Radeon HD 6850 X2, and 1.5% behind the AMD Radeon RX 9060 XT 8 GB. The GT 730M's average of 3316 places it just below the Intel HD Graphics 530, which leads by 0.5%, and just above the GeForce 920M, which trails by 0.9%. The Intel HD Graphics P4600 leads the GT 730M by 2.2%, while the GeForce GT 640 sits 3.3% behind.

The OpenCL gap of 58.8% between the two NVIDIA parts is far larger than any gap between either card and its nearest rivals. This suggests the GT 755M and GT 730M are not simply adjacent performance tiers; they are separated by a wide gulf in compute capability, likely driven by the clock speed and memory bandwidth differences noted earlier.

The Verdict

The data supports a clear hierarchy. The NVIDIA GeForce GT 755M is the faster GPU in every measured metric. It wins the only head-to-head test, the Geekbench OpenCL benchmark, with a 58.8% advantage. It carries higher clock speeds, GDDR5 memory with 86.40 GB/s of bandwidth versus 28.80 GB/s, and nearly 30% more FP32 compute (783.4 GFLOPS versus 556.8 GFLOPS). Its average benchmark score of 4033 places it at the 24th percentile, while the GT 730M's 3316 average sits at the 20th percentile.

For a user selecting between these two mobile GPUs, the choice depends on whether the extra performance is worth the higher power draw. The GT 755M consumes 50 W versus 33 W for the GT 730M. The GT 755M also boosts to 1020 MHz, whereas the GT 730M is fixed at 725 MHz, and the memory subsystem is categorically different: GDDR5 at 5.4 Gbps effective versus DDR3 at 1800 Mbps effective.

The GT 730M is not without a rationale. Its lower TDP makes it a candidate for thinner, cooler-running notebooks where battery life and thermal headroom matter more than raw performance. Its Vulkan score of 3524, while not directly comparable to the GT 755M's absence of a Vulkan result, shows it can handle lighter API workloads. However, in any compute-heavy scenario, the GT 755M is the only defensible pick from the data.

There is no recorded benchmark where the GT 730M beats the GT 755M. The verdict writes itself: choose the GT 755M for performance, choose the GT 730M only if the 17 W TDP difference is the deciding factor. Neither card is current, both are end-of-life, and both belong to the same Kepler family, but the GT 755M is the stronger silicon by every measurable margin in the database.

FAQ

Q: How much faster is the NVIDIA GeForce GT 755M than the GT 730M in OpenCL?

A: The GT 755M scores 4934 in Geekbench OpenCL versus 3107 for the GT 730M, a delta of 58.8%.

Q: Do both GPUs use the same chip?

A: Yes, both use the GK107 chip on the Kepler architecture, manufactured on a 28 nm process with 1,270 million transistors and a die size of 118 mm².

Q: What is the memory bandwidth difference between the two?

A: The GT 755M has 86.40 GB/s of bandwidth using GDDR5 at 5.4 Gbps effective, while the GT 730M has 28.80 GB/s using DDR3 at 1800 Mbps effective.

Q: Which GPU has a higher power consumption?

A: The GT 755M is rated at 50 W TDP, while the GT 730M is rated at 33 W TDP.

Q: What are the average benchmark scores for each GPU?

A: The GT 755M has an average benchmark score of 4033, placing it at the 24th percentile of all GPUs. The GT 730M has an average of 3316, at the 20th percentile.

Q: Does the GT 730M have any benchmark where it beats the GT 755M?

A: No. The only head-to-head test, Geekbench OpenCL, is won by the GT 755M, and the GT 730M records zero wins in the comparison.