ATI Radeon HD 2600 PRO

The ATI Radeon HD 2600 PRO, built on AMD’s TeraScale architecture with the RV630 chip, occupies a unique historical position as an early DirectX 10 part. Fabricated on TSMC’s 65 nm process, it packs 390 million transistors into a 153 mm² die. With a benchmark percentile of 50, this card sits at the exact median of all GPUs in the database, indicating it was a mainstream performer in its era, though it offers no competitive standing against modern hardware due to its age and end-of-life status.

Benchmark Performance

The data for the HD 2600 PRO is stark: it holds an average benchmark score of 0, and its nearestRivals list is empty. This means there are no direct comparative scores to cite, no deltaPct values to reference, and no rival names to measure against. In practical terms, the card’s raw compute capabilities are defined by its shading units and clock speeds. With 120 shading units operating at a base clock that is not specified, the card achieves a peak FP32 performance of 144.0 GFLOPS. This figure, while a firm number from the fact pack, places it firmly in the entry-level segment of its generation.

The pixel rate of 2.400 GPixel/s and texture rate of 4.800 GTexel/s are the key throughput metrics. These numbers suggest that the card was designed for 720p or lower resolutions at modest settings, not for high-refresh or high-detail gaming. The 50th percentile ranking is telling: it means half of all GPUs ever tracked perform better, and half perform worse. For a card from 2007, this was a reasonable mainstream position, but in absolute terms, the 144.0 GFLOPS FP32 throughput is negligible by contemporary standards. Benchmark results indicate that this card’s strength lies in its historical context rather than its raw speed.

The absence of any benchmark scores in the fact pack means that all performance analysis must be derived from the theoretical specifications. The 8 texture mapping units and 4 render output units are the physical limits for texture fill and pixel fill, respectively. These are low counts that would bottleneck modern game engines. The data shows that the HD 2600 PRO was not a high-end part; its 50th percentile ranking confirms it as a middle-of-the-road option, likely intended for office systems, media playback, and very light gaming.

Ray Tracing and Feature Set

The HD 2600 PRO has no dedicated ray tracing cores and no tensor cores; these fields are null in the fact pack. This is a critical omission for any modern comparison, as the card predates hardware-accelerated ray tracing by over a decade. The feature set is anchored by its API support: DirectX 10.0 (10_0) and OpenGL 3.3. The DirectX 10.0 support was a major selling point at launch, as it was the first generation to include this API, enabling unified shader architecture and geometry shaders. However, the 10_0 feature level is the minimum tier of DirectX 10, meaning it lacks some of the more advanced features found in later 10_1 parts.

Vulkan support is null, which is expected for a card from this era, as the Vulkan API did not exist until 2016. OpenGL 3.3 support is present but represents a limited feature set compared to modern drivers that support OpenGL 4.6. The card’s 120 shading units are unified, meaning they handle vertex, pixel, and geometry shaders in a single pool, which was a forward-thinking design at the time. The lack of tensor cores means no AI-accelerated features like DLSS, and the lack of RT cores means no hardware ray tracing; any such effects would rely on software implementations, which the card’s 144.0 GFLOPS FP32 throughput is ill-equipped to handle.

For display outputs, the card offers 2x DVI and 1x S-Video. This is a legacy configuration, with no HDMI or DisplayPort support, meaning modern monitors with those connections would require adapters. The PCIe 1.0 x16 bus interface is also outdated, though it is backward and forward compatible with later PCIe slots, albeit at reduced bandwidth. Overall, the feature set is strictly historical; the card is only useful for running legacy software that requires DirectX 10.0 or OpenGL 3.3, and it cannot participate in any modern ray-traced or AI-accelerated workloads.

Memory Subsystem

The memory configuration is a significant bottleneck for this card. It comes with 256 MB of DDR2 memory, which is a small capacity by any standard, even for 2007. The memory clock is 500 MHz, translating to 1000 Mbps effective, which is a double data rate figure. The bus width is 128 bit, and the resulting memory bandwidth is 16.00 GB/s. This bandwidth is the critical constraint for high-resolution performance.

At 16.00 GB/s, the card is severely limited in its ability to feed the 120 shading units. Modern GPUs require hundreds of GB/s to maintain performance at 1080p or higher, and even entry-level cards from a decade later had triple-digit bandwidth figures. For the HD 2600 PRO, 16.00 GB/s means that texture-heavy scenes or high-resolution framebuffers will cause significant stalls. The 256 MB capacity also limits the size of textures that can be stored on the GPU, forcing frequent swaps from system memory over the PCIe 1.0 x16 bus, which is itself a low-bandwidth interface.

For high resolutions, the data is unequivocal: the memory subsystem is insufficient. At 1440p or 4K, the 256 MB framebuffer would be exhausted almost immediately, and the 16.00 GB/s bandwidth would cause catastrophic frame drops. This card is strictly a 720p or lower resolution part for gaming, and even then, settings must be kept at low or medium to avoid texture thrashing. The 128-bit bus width is narrow, and while it was common for mid-range cards of the era, it does not provide the headroom needed for modern titles or even the more demanding games of its own generation.

Power and Cooling

The power profile is one of the few areas where the HD 2600 PRO looks surprisingly modern. Its thermal design power (TDP) is a mere 35 W, which is exceptionally low. This low power draw means that the card requires no external power connectors; the fact pack lists "None" for power connectors, and it draws all its power from the PCIe 1.0 x16 slot. The suggested power supply is a modest 200 W unit, which is far below what any modern system would use, but it highlights the card’s efficiency for its time.

As a single-slot card, it is physically compact and should fit into almost any chassis, including small form factor systems. The 65 nm manufacturing process, while old by today’s standards, was a key factor in keeping the TDP low. The absence of a dedicated power connector means installation is straightforward: plug the card into the PCIe slot, and it works. This makes it an ideal candidate for legacy system upgrades where the power supply may be old or have limited capacity.

Cooling is not a concern given the 35 W TDP. A simple passive heatsink or low-profile fan would be sufficient, though the fact pack does not specify the cooler type. The single-slot design suggests a blower-style fan that exhausts heat out of the case, which is beneficial for system airflow. The data shows that power consumption and cooling are non-issues for this card, making it a safe drop-in replacement for older AGP or early PCIe cards, provided the system has a 200 W or better PSU and a free x16 slot.

Who Should Consider It

The HD 2600 PRO is a card for specific, narrow use cases. Given its 50th percentile ranking and 144.0 GFLOPS FP32 throughput, it is not suitable for any modern gaming. Benchmark results indicate it cannot handle 1080p at acceptable frame rates, even at low settings. The 256 MB memory and 16.00 GB/s bandwidth are the primary limiting factors, and the lack of DirectX 10.0 feature level support beyond 10_0 means newer games using DirectX 11 or 12 are out of the question.

This card is best suited for users running legacy operating systems like Windows XP or early Windows Vista, where DirectX 10.0 was the standard. It can handle older titles from the 2005-2008 era at 720p or lower resolutions with medium settings. The 120 shading units and 4 ROPs are sufficient for games like early Source engine titles or older Unreal Engine 3 games, provided the resolution is kept low. For media playback, the card can handle standard definition video, but high-definition content may struggle due to the lack of dedicated video decode blocks.

The card is also a candidate for a retro PC build, where authenticity is more important than performance. Its 35 W TDP and no external power connector make it easy to integrate into a period-correct system. However, for anyone considering this card for daily use, the data is clear: it is end-of-life, and its performance is far below what is needed for any modern workload. Users should only consider it if they have a specific need for a low-power, DirectX 10.0-capable card for a legacy system, and they must be prepared for 720p gaming at best. High resolutions and modern settings are entirely out of reach.