NVIDIA GeForce GT 635M

The NVIDIA GeForce GT 635M is a Fermi-architecture mobile processor from the GeForce 600M generation, fabricated on a 40 nm process at TSMC with 585 million transistors on a 116 mm² die. It is positioned as an entry-level part in the database, holding a 15th percentile rank among all GPUs, which indicates it is outpaced by the vast majority of modern graphics solutions. The data set includes a single Geekbench OpenCL score of 2504, which serves as the primary performance reference for this analysis.

Benchmark Performance

The sole benchmark result for the GT 635M is a Geekbench OpenCL score of 2504 points. To contextualize this figure, the nearest rivals provide a tight cluster of comparable performance. The GT 635M sits nearly neck-and-neck with the Intel HD Graphics 510, which averages 2483 points; the NVIDIA part is a mere 0.8% faster. This effectively places the two in a statistical tie for compute workloads, suggesting that for OpenCL-accelerated tasks, the dedicated Fermi GPU offers no tangible advantage over that integrated solution.

Slightly further afield, the NVIDIA GeForce MX250 posts an average score of 2449, meaning the GT 635M leads it by 2.2%. While this is a definitive margin, it is small enough to be practically imperceptible in real-world applications. The data implies that despite the MX250 being a much newer discrete part, its OpenCL performance in this benchmark is marginally inferior to the aging GT 635M. Conversely, the Intel HD Graphics 610 scores 2570 on average, placing the GT 635M 2.6% behind it. This is a modest deficit, yet it demonstrates that even low-end integrated graphics from a later generation can edge out this Fermi-based chip.

The narrative is clear: the GT 635M is anchored in a performance band where the difference between 2449 and 2570 points—roughly a 5% spread—separates the entire competitive field. The 182.4 GFLOPS of FP32 compute power is the theoretical ceiling, and the benchmark confirms that this translates to entry-level reality. There is no scenario in the data where this GPU breaks away from its rivals; it is perpetually within a few percentage points of them, making benchmark positioning more about driver maturity and specific workload quirks than raw architectural superiority.

Power and Cooling

The GT 635M is rated for a thermal design power (TDP) of 35 W, which is characteristic of a low-power mobile solution. The slot width is listed as "IGP," indicating it is an integrated graphics processor, likely soldered onto the motherboard or a mobile module rather than a discrete card occupying a standard expansion slot. This form factor inherently dictates the cooling solution, which would be a shared heatpipe or heatsink assembly designed by the laptop manufacturer, not an aftermarket cooler.

Power delivery is simplified by the absence of external power connectors; the card draws all its electricity from the PCIe 2.0 x16 bus interface. Consequently, there is no suggested PSU rating in the fact pack, as the power supply requirements are subsumed by the host laptop's overall design. For a system builder, this means no additional power cabling is necessary, but the 35 W TDP still contributes to the thermal budget of the chassis. The lack of a dedicated PSU recommendation underscores that this is a drop-in, low-stakes component from a power perspective, yet the 40 nm process node suggests that efficiency is not its strong suit compared to later, more refined architectures.

Ray Tracing and Feature Set

The GT 635M does not feature dedicated ray tracing cores or tensor cores, as those are absent from the fact pack. This places it firmly in the pre-RTX era, where ray tracing was not a hardware-accelerated feature for consumer GPUs. The API support is nevertheless broader than one might expect for a 2012 part: it supports DirectX 12 (11_0) and OpenGL 4.6. The DirectX 12 support is feature-limited to the 11_0 level, meaning it can run DX12 titles but only through the compatibility path, not with the full feature set of newer hardware.

Vulkan support is listed as null, which is a notable gap, as many modern titles rely on Vulkan for cross-platform rendering. This means that for contemporary games or applications that have dropped OpenGL or DX11 fallbacks, the GT 635M will be unable to execute them. The pixel rate of 1.900 GPixel/s and texture rate of 7.600 GTexel/s are meager by modern standards, reinforcing that this GPU is suited for basic rendering tasks rather than advanced graphical effects. The absence of tensor cores also precludes any AI-accelerated features like DLSS, which are irrelevant for a chip of this performance class.

How It Compares

Against the Intel HD Graphics 510, the GT 635M holds a razor-thin 0.8% lead in average benchmark score. This is effectively a tie, indicating that the dedicated GPU's extra memory bandwidth and shading units do not translate into a meaningful compute advantage over this integrated Intel solution. The data suggests that users would not perceive any performance difference between the two in OpenCL workloads.

The NVIDIA Quadro K2000M is 1% faster than the GT 635M, scoring 2529 versus 2504. This is a professional-grade mobile GPU, and its slight edge is consistent with its workstation positioning. For the GT 635M, this means it is competitively matched even against a Quadro product, though the latter likely offers better driver optimization for professional applications, a factor not captured in the raw compute score.

The NVIDIA GeForce MX250 is 2.2% slower than the GT 635M, scoring 2449. This is an unexpected result given the MX250's newer architecture, but the benchmark data does not lie: the GT 635M edges it out in this specific OpenCL test. This suggests that raw compute throughput is not the MX250's strength, or that the GT 635M's older drivers are more optimized for this particular workload.

The Intel HD Graphics 610 is 2.6% faster than the GT 635M, scoring 2570. This is the largest delta in the rival group, and it shows that a low-end integrated GPU from a subsequent generation can outperform the Fermi-based chip. The implication is that Intel's integrated graphics made significant strides in compute performance, effectively erasing any advantage the GT 635M might have once held.

Memory Subsystem

The GT 635M is equipped with 2 GB of DDR3 memory on a 128-bit bus, yielding a memory bandwidth of 28.80 GB/s. The memory clock is 900 MHz, with an effective data rate of 1800 Mbps. This configuration is typical for an entry-level GPU of its era, providing enough capacity for framebuffer-intensive tasks but constrained by the modest bandwidth.

For high-resolution gaming, this memory subsystem is a significant bottleneck. The 28.80 GB/s bandwidth is insufficient for large texture datasets and high-resolution framebuffers, which explains why the GPU's performance likely degrades sharply above 1080p. The 128-bit bus width is narrow, limiting the amount of data that can be transferred per clock cycle. While 2 GB of VRAM is adequate for older titles at lower settings, modern games with high-resolution textures would exceed both the bandwidth and capacity limits, resulting in stuttering or reduced texture quality. The data indicates that the GT 635M is best suited for 720p or 1366x768 resolutions, where the memory subsystem can keep pace with the GPU's compute capabilities.

FAQ

Q: How does the GT 635M perform in OpenCL benchmarks compared to the Intel HD Graphics 510?

A: The GT 635M scores 2504, which is 0.8% higher than the Intel HD Graphics 510's average of 2483, making the two effectively equivalent in compute performance.

Q: Does the GT 635M support DirectX 12?

A: Yes, it supports DirectX 12 (11_0), but this is a feature-limited implementation that runs DX12 titles through a compatibility path rather than with full hardware support.

Q: What is the memory bandwidth of the GT 635M?

A: The memory bandwidth is 28.80 GB/s, derived from 2 GB of DDR3 memory on a 128-bit bus with an effective clock speed of 1800 Mbps.

Q: Is the GT 635M faster than the NVIDIA GeForce MX250?

A: In the Geekbench OpenCL test, the GT 635M scores 2504, which is 2.2% higher than the MX250's average of 2449, indicating a slight performance advantage for the older GT 635M.

Q: What power connector does the GT 635M require?

A: It requires no power connectors, as it draws power solely from the PCIe 2.0 x16 bus interface and has a TDP of 35 W.

Q: Does the GT 635M have ray tracing cores?

A: No, the fact pack lists no RT cores or tensor cores, confirming that this Fermi-based GPU lacks dedicated ray tracing and AI acceleration hardware.

Who Should Consider It

The benchmark data positions the GT 635M as a legacy solution for basic computing tasks. Given its 15th percentile ranking and the tight performance cluster with Intel integrated graphics, this GPU is only suitable for users running older software or light productivity workloads. At a 0.8% delta from the Intel HD Graphics 510, there is no reason to choose this dedicated GPU over a modern integrated solution for compute tasks.

For gaming, the 182.4 GFLOPS FP32 performance and 28.80 GB/s bandwidth dictate that this is a 720p-class part at best, and only for titles from the early 2010s or esports titles with low graphical demands. The 2.6% deficit against the Intel HD Graphics 610 suggests that even this modest gaming capability is matched or exceeded by newer integrated graphics. Users who require playable framerates in modern 3D games should look elsewhere, as the data shows the GT 635M is firmly outclassed by even the weakest contemporary rivals. It is a component for historical interest or for keeping a very old laptop functional, not for serious graphics work or gaming.