ATI Mobility Radeon HD 4350

The ATI Mobility Radeon HD 4350 is an entry-level mobile graphics solution from AMD, built on the 55 nm TeraScale architecture. Designed for the M9x generation of laptops, this chip targets basic multimedia and light productivity tasks rather than high-end gaming or professional workloads. With a modest configuration of 80 shading units, 8 texture mapping units, and 4 render output units, the HD 4350 delivers a peak FP32 performance of 72.00 GFLOPS, placing it at the 50th percentile among all GPUs in the benchmark database, though it carries no recorded average benchmark score or competing rivals in the current dataset.

Benchmark Performance

The ATI Mobility Radeon HD 4350 presents a unique case in the benchmark database: it holds a percentile ranking of 50, indicating it sits exactly at the median of all GPUs tracked, yet it has no specific benchmark scores or nearest rivals listed. This means the available quantitative data is limited to its theoretical specifications rather than real-world testing results. The card's FP32 throughput of 72.00 GFLOPS, pixel rate of 1.800 GPixel/s, and texture rate of 3.600 GTexel/s suggest a part designed for minimal computational loads, consistent with its 80 shading units and 4 ROPs.

Without direct comparison scores, the percentile ranking of 50 provides the only relative context. This median placement implies that half of all GPUs in the database outperform the HD 4350, while the other half underperform it — a surprisingly central position for such a low-specification part, likely skewed by the inclusion of many older or equally limited integrated graphics solutions. The absence of nearest rivals means no exact percentage deltas can be calculated, but the raw numbers paint a clear picture: 72.00 GFLOPS is a fraction of what even entry-level discrete GPUs from the same era delivered, and the 3.600 GTexel/s fill rate indicates severe limitations in texture-heavy scenes.

The 55 nm process node and 242 million transistor count (on a 73 mm² die) place the HD 4350 in a transitional period for mobile graphics. Its transistor density of 3.3M / mm² is modest by modern standards, but the architecture's efficiency is less relevant than the sheer lack of compute resources. For any application requiring more than basic 2D acceleration or video playback, the benchmark data — or lack thereof — strongly suggests the HD 4350 will struggle. The 50th percentile ranking, while technically neutral, should not be interpreted as "average performance" in a modern context; rather, it reflects the database's inclusion of many equally dated or weaker parts.

Memory Subsystem

The memory configuration of the ATI Mobility Radeon HD 4350 is as constrained as its compute core. It comes equipped with 512 MB of GDDR3 memory, a size that was already considered minimal at its 2009 launch. The memory interface is just 64 bit wide, which severely limits data throughput. This narrow bus, combined with a memory clock of 800 MHz (1600 Mbps effective), yields a total bandwidth of 12.80 GB/s. To put this in perspective, even mid-range GPUs from the same period offered 128-bit or wider buses and bandwidth figures several times higher.

For high-resolution workloads, this memory subsystem is a critical bottleneck. At resolutions beyond 1080p, the combination of 512 MB capacity and 12.80 GB/s bandwidth will cause significant stuttering and texture thrashing in any 3D application. The 64-bit bus means that each memory access cycle transfers only half the data of a 128-bit part, effectively halving the already limited bandwidth potential. The 1.800 GPixel/s pixel rate further compounds this issue, as the GPU cannot generate frames fast enough to justify the memory's meager throughput.

The GDDR3 type, while standard for the era, operates at a relatively low effective speed of 1600 Mbps. Modern GDDR5 and GDDR6 parts offer multiple times this bandwidth per pin, but the HD 4350's constraints are inherent to its design. For users considering this GPU for anything beyond 720p gaming or basic desktop use, the memory subsystem will be the first component to fail. Even 1080p video playback might strain the 12.80 GB/s bandwidth if the system relies on GPU decoding, though the lack of dedicated video decode engines in the fact pack suggests this is handled by the CPU.

Who Should Consider It

Given its 50th percentile ranking and absent benchmark scores, the ATI Mobility Radeon HD 4350 is only suitable for the most basic computing scenarios. Users running office applications, web browsing, or legacy 2D software will find the GPU sufficient, as these workloads place minimal demands on the 72.00 GFLOPS compute throughput and 12.80 GB/s memory bandwidth. The 512 MB of GDDR3 is adequate for framebuffer operations at 720p or lower resolutions, where the 1.800 GPixel/s pixel rate can keep pace with simple desktop rendering.

For gaming, the HD 4350 is effectively limited to titles from its 2009 era or earlier, and only at low resolutions and detail settings. The 3.600 GTexel/s texture rate means that any scene with substantial texture detail will cause the GPU to choke. The 4 ROPs further restrict fill-rate-heavy effects like anti-aliasing and high-resolution shadows. A reasonable expectation would be 720p gaming with all settings at minimum, and even then, frame rates will likely dip below playable thresholds in more demanding scenes. The lack of any rival comparison data reinforces the notion that this GPU was never intended for serious gaming.

The card's MXM Module form factor and PCIe 2.0 x16 interface suggest it was designed for upgradeable laptops, but the end-of-life production status and 2009 release date mean any such upgrade path is long obsolete. Power requirements are minimal — the fact pack lists no TDP and no power connectors — making it suitable for ultra-portable notebooks where battery life is prioritized over performance. The portable device dependent display outputs further emphasize its role as a basic display driver rather than a performance component.

FAQ

Q: What is the FP32 performance of the ATI Mobility Radeon HD 4350?

A: The GPU delivers a peak FP32 throughput of 72.00 GFLOPS, derived from its 80 shading units operating at the listed memory clock of 800 MHz (1600 Mbps effective).

Q: How much video memory does the HD 4350 have, and what type?

A: It comes with 512 MB of GDDR3 memory on a 64-bit bus, providing a total bandwidth of 12.80 GB/s.

Q: What is the production status of this GPU?

A: The ATI Mobility Radeon HD 4350 is marked as end-of-life, having been released on January 8, 2009.

Q: Does the HD 4350 support modern graphics APIs?

A: It supports DirectX 10.1 (10_1) and OpenGL 3.3, but has no Vulkan support, limiting its compatibility with newer titles.

Q: What is the transistor count and die size of the M93 chip?

A: The chip contains 242 million transistors on a 73 mm² die, manufactured on a 55 nm process at TSMC, yielding a transistor density of 3.3M / mm².

Q: What is the memory clock speed of this GPU?

A: The memory runs at 800 MHz, which translates to 1600 Mbps effective due to double data rate transmission.

Ray Tracing and Feature Set

The ATI Mobility Radeon HD 4350 has no dedicated ray tracing cores or tensor cores, as these technologies did not exist in consumer GPUs at the time of its release. The TeraScale architecture, while capable of handling basic lighting calculations through its 80 shading units, lacks any hardware acceleration for ray-traced effects. Consequently, any ray tracing workload would fall entirely on the shader units, resulting in performance that is effectively unusable for real-time applications. The 72.00 GFLOPS FP32 throughput is insufficient for even the most simplified ray tracing algorithms.

The feature set is defined by its API support and connectivity options. The GPU supports DirectX 10.1 (10_1), which includes features like improved shader model 4.1 and cube map arrays, but lacks the DirectX 11 features that became standard shortly after its release. OpenGL 3.3 support provides compatibility with many legacy applications, but the absence of Vulkan support cuts off access to modern cross-platform graphics APIs. The PCIe 2.0 x16 bus interface is standard for its era, offering sufficient bandwidth for the GPU's limited data requirements.

Display outputs are listed as "portable device dependent," meaning the actual connectors vary by laptop manufacturer. This is typical for MXM modules, where the system integrator determines the final I/O configuration. The power connectors are listed as "None," indicating the GPU draws all its power from the MXM slot itself. The 55 nm process node and 242 million transistors reflect an older manufacturing era, but the architecture's simplicity means it requires no auxiliary power. For users seeking modern features like hardware ray tracing or AI acceleration, the HD 4350 offers none — its feature set is strictly limited to the basics of its 2009 design.