NVIDIA GeForce GTX 465 vs NVIDIA GeForce GTX 650 Ti Boost Comparison

NVIDIA GeForce GTX 465 and NVIDIA GeForce GTX 650 Ti Boost represent two distinct approaches to graphics hardware engineering, separated by nearly three years of architectural evolution. The data shows a fascinating near-tie in raw compute benchmarks despite their vastly different designs, with the newer card edging out the older one by a razor-thin margin in the only shared test.

Head-to-Head Benchmarks

The only direct comparison available in the database is the Geekbench OpenCL test, and the results are remarkably close. The NVIDIA GeForce GTX 650 Ti Boost scores 9302, while the NVIDIA GeForce GTX 465 scores 9294. The delta percentage is just -0.1%, meaning the GTX 650 Ti Boost holds a 0.1% advantage over the GTX 465. This is essentially a statistical dead heat, a surprising outcome given the significant architectural differences between the two cards.

Looking at the broader benchmark landscape, the GTX 465's average benchmark score is 9294, which places it in the 46th percentile of all GPUs. Its nearest rivals in the database include the NVIDIA GeForce GTX 850M at 9302 (+0.1% relative to the 465), the AMD Radeon R7 M380 at 9313 (+0.2%), the NVIDIA GeForce GTX 960 at 9273 (-0.2%), and the AMD Radeon Vega 8 at 9221 (+0.8%). The GTX 465 effectively sits in the middle of a tight cluster of mid-range performers.

The GTX 650 Ti Boost tells a different story when considering its full benchmark suite. Its average benchmark score across all recorded tests is 8067, which drops its percentile ranking to 42nd. This is because it also has Geekbench Metal and Vulkan results, which drag down its average. Its OpenCL score of 9302 matches the GTX 465's performance almost exactly, but its Metal score of 4858 and Vulkan score of 10041 show significant variance across different APIs. The Vulkan result is particularly interesting, as it demonstrates the card's capability in modern graphics interfaces.

The GTX 650 Ti Boost's nearest rivals based on average score include the NVIDIA GRID K2 at 8080 (+0.2% relative to the 650 Ti Boost), the NVIDIA GeForce GTX 650 Ti at 8053 (-0.2%), the NVIDIA GeForce GTX 880M at 8040 (-0.3%), and the NVIDIA Quadro P5000 at 8039 (-0.3%). These deltas show that the 650 Ti Boost's average is dragged down by its API-specific results, particularly the Metal score.

Where Each One Wins

The GTX 650 Ti Boost wins the only head-to-head OpenCL comparison, but by such a tiny margin that it hardly constitutes a meaningful victory. Its real strengths appear in other areas. The Vulkan score of 10041 is its standout achievement, suggesting the Kepler architecture handles modern low-level APIs with relative ease. The database shows no Vulkan support for the GTX 465, so this is an area where the newer card has clear functional superiority.

The GTX 465 wins in terms of raw OpenCL consistency. Its single recorded benchmark score of 9294 is its average score, meaning there is no variance across different API tests. For workloads that rely exclusively on OpenCL, the two cards are effectively interchangeable based on the recorded data.

The GTX 650 Ti Boost also wins in memory capacity, offering 2 GB of GDDR5 compared to the GTX 465's 1 GB. This could matter for texture-heavy workloads or higher resolution rendering, even though the benchmark data does not directly test this scenario. The newer card also has a higher memory bandwidth at 144.2 GB/s versus 102.7 GB/s, which suggests better performance in memory-bound scenarios.

Architecture Differences

The two cards come from entirely different architectural generations. The GTX 465 uses the GF100 chip based on the Fermi architecture, manufactured on a 40 nm process at TSMC. The GTX 650 Ti Boost uses the GK106 chip based on the Kepler architecture, manufactured on a 28 nm process, also at TSMC. This process shrink is substantial, dropping from 40 nm to 28 nm.

The transistor counts tell an interesting story. The GTX 465 packs 3,100 million transistors on a massive 529 mm² die, resulting in a transistor density of 5.9 million transistors per square millimeter. The GTX 650 Ti Boost has fewer total transistors at 2,540 million, but they are packed onto a much smaller 221 mm² die, yielding a density of 11.5 million transistors per square millimeter. The newer card is nearly twice as dense, a clear sign of manufacturing process maturity.

The compute configurations differ significantly. The GTX 465 has 352 shading units, 44 texture mapping units, and 32 ROPs. The GTX 650 Ti Boost has more than double the shading units at 768, and more TMUs at 64, but fewer ROPs at 24. The pixel rate favors the newer card at 16.51 GPixel/s versus 13.38 GPixel/s. The texture rate is a much larger gap, with the GTX 650 Ti Boost delivering 66.05 GTexel/s compared to 26.75 GTexel/s for the GTX 465.

Floating point performance shows the Kepler card's advantage clearly. The GTX 650 Ti Boost delivers 1.585 TFLOPS of FP32 compute, nearly double the 855.4 GFLOPS of the GTX 465. This is a substantial theoretical compute advantage, even though the OpenCL benchmark shows them nearly tied in practice.

Memory subsystems also differ. The GTX 465 uses a 256-bit bus with 102.7 GB/s bandwidth, while the GTX 650 Ti Boost uses a narrower 192-bit bus but achieves higher bandwidth at 144.2 GB/s thanks to faster GDDR5 memory running at 6 Gbps effective. The GTX 650 Ti Boost also has base and boost clocks of 980 MHz and 1032 MHz respectively, while the GTX 465 does not have recorded base or boost clock values.

Power and interface specs reflect the generational gap. The GTX 465 has a TDP of 200 W and requires 2x 6-pin power connectors with a suggested 550 W PSU. The GTX 650 Ti Boost draws only 134 W, needs a single 6-pin connector, and suggests a 300 W PSU. The newer card also supports PCIe 3.0 x16, while the GTX 465 is limited to PCIe 2.0 x16.

The Verdict

The data paints a clear picture for different use cases. The GTX 650 Ti Boost is the more versatile card, offering Vulkan support with a score of 10041, higher memory capacity, better bandwidth, and significantly lower power requirements. Its 134 W TDP and single power connector make it a much easier fit for a wider range of systems. The near-identical OpenCL score to the GTX 465 means there is no compute penalty for choosing the newer card.

The GTX 465 has one notable advantage: consistency. Its single OpenCL score of 9294 represents its entire benchmark profile, with no weaker Metal or Vulkan results to consider. For users who only care about OpenCL workloads, the GTX 465 matches the GTX 650 Ti Boost within 0.1%, making the choice irrelevant on performance grounds alone.

The GTX 650 Ti Boost is the better choice for anyone considering modern graphics APIs, given its Vulkan support and substantial lead in texture and pixel processing rates. The GTX 465 remains competitive only in the narrow context of OpenCL-specific tasks, where its performance is statistically indistinguishable from its younger rival.

FAQ

Q: Which card has a higher OpenCL benchmark score?

A: The NVIDIA GeForce GTX 650 Ti Boost scores 9302, which is 0.1% higher than the NVIDIA GeForce GTX 465's score of 9294.

Q: Does the GTX 465 support Vulkan?

A: The database records no Vulkan support for the GTX 465. The GTX 650 Ti Boost supports Vulkan version 1.2.175 and scores 10041 in the Geekbench Vulkan test.

Q: How do the memory capacities compare?

A: The GTX 650 Ti Boost has 2 GB of GDDR5 memory, while the GTX 465 has 1 GB of GDDR5 memory.

Q: Which card has a higher power consumption?

A: The GTX 465 has a TDP of 200 W, while the GTX 650 Ti Boost has a TDP of 134 W.

Q: What is the shading unit count for each card?

A: The GTX 465 has 352 shading units, while the GTX 650 Ti Boost has 768 shading units.

Q: Which card has higher memory bandwidth?

A: The GTX 650 Ti Boost has 144.2 GB/s of bandwidth, compared to 102.7 GB/s for the GTX 465.

Specification Differences

| Specification | NVIDIA GeForce GTX 465 | NVIDIA GeForce GTX 650 Ti Boost |

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

| Chip | GF100 | GK106 |

| Architecture | Fermi | Kepler |

| Generation | GeForce 400 | GeForce 600 |

| Process Node | 40 nm | 28 nm |

| Transistors | 3,100 million | 2,540 million |

| Die Size | 529 mm² | 221 mm² |

| Transistor Density | 5.9M / mm² | 11.5M / mm² |

| Base Clock | Not recorded | 980 MHz |

| Boost Clock | Not recorded | 1032 MHz |

| Memory Clock | 802 MHz (3.2 Gbps effective) | 1502 MHz (6 Gbps effective) |

| Memory Size | 1024 MB | 2 GB |

| Memory Bus Width | 256 bit | 192 bit |

| Memory Bandwidth | 102.7 GB/s | 144.2 GB/s |

| Shading Units | 352 | 768 |

| TMUs | 44 | 64 |

| ROPs | 32 | 24 |

| Pixel Rate | 13.38 GPixel/s | 16.51 GPixel/s |

| Texture Rate | 26.75 GTexel/s | 66.05 GTexel/s |

| FP32 Performance | 855.4 GFLOPS | 1.585 TFLOPS |

| TDP | 200 W | 134 W |

| Power Connectors | 2x 6-pin | 1x 6-pin |

| Suggested PSU | 550 W | 300 W |

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

| Display Outputs | 2x DVI, 1x mini-HDMI 1.3a | 2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2 |

| Vulkan Support | Not recorded | 1.2.175 |

| Release Date | 2010-05-30 | 2013-03-25 |

| Launch MSRP | 279 USD | 169 USD |

| Predecessor | GeForce 200 | GeForce 500 |

| Successor | GeForce 500 | GeForce 700 |

| Avg Benchmark Score | 9294 | 8067 |

| Percentile Vs All GPUs | 46 | 42 |