ATI Radeon X1900 CrossFire Edition

The ATI Radeon X1900 CrossFire Edition is a dual-slot, end-of-life graphics card from AMD, built on the 90 nm R580 chip using the Ultra-Threaded SE architecture. It is part of the Radeon R500 PCIe generation and serves as a bridge between the Radeon R400 PCIe and the later Radeon R600 series. With a 50th percentile ranking against all GPUs in the database and no active benchmark scores recorded, this card's position is defined more by its architectural heritage and feature set than by current performance metrics.

How It Compares

The X1900 CrossFire Edition does not have any nearest rivals listed in the dataset, meaning there are no direct comparative scores or deltaPct values to reference. This absence of competitor data positions the card as a standalone entry in the database, with its performance context derived solely from its own specifications and the available percentile ranking. The 50th percentile placement indicates it sits exactly at the median of all GPUs tracked, which is a neutral standing but one that reflects its age as a 2006-era product.

Without rival scores, the comparison must rely on the card's internal balance of features. The 16 texture mapping units and 16 render output units are evenly matched, producing identical pixel and texture rates of 10.00 GPixel/s and 10.00 GTexel/s respectively. This symmetry suggests a design where fill-rate-bound workloads would not be bottlenecked by one particular stage, a trait that would have been notable for its time but is now firmly in legacy territory.

The card's position relative to its predecessor and successor is clear from the generation lineage, but no quantitative data exists to measure that gap. What is known is that the X1900 CrossFire Edition was released on January 23, 2006, and its production has since ceased, marking it as a historical piece rather than a current contender.

Ray Tracing and Feature Set

The X1900 CrossFire Edition predates dedicated ray tracing and tensor core hardware entirely, as evidenced by the null values for both rtCores and tensorCores in the specification sheet. This absence is expected for a GPU of this era, as the R580 chip was designed before such accelerators became standard in consumer graphics. The feature set is instead rooted in the DirectX 9.0c (9_3) API, which represents the highest DirectX version supported by this card.

OpenGL support is more nuanced, with full compliance at version 2.1 and only partial support for version 3.0. This split means that while the card can handle most OpenGL 2.1 applications completely, it lacks the full feature set required for OpenGL 3.0 workloads, which could limit compatibility with later titles that rely on newer OpenGL extensions. The absence of Vulkan support further confines this card to legacy software environments.

The API list paints a clear picture: this is a DirectX 9-era card through and through, with no path forward to modern graphics APIs. For the benchmark database, this means any performance analysis must be understood within the context of older game engines and applications that do not demand the features found in contemporary graphics cards.

Benchmark Performance

No benchmark scores are available for the X1900 CrossFire Edition, as the benchmarks array is empty and the average benchmark score is listed as zero. This absence of data is itself a finding, as it indicates that this card has not been tested or has not returned results under the current benchmarking methodology. The 50th percentile ranking against all GPUs is the only performance-related metric, and it places the card at the midpoint of the database distribution.

Interpreting this percentile requires caution, as the database includes a wide range of GPUs from different eras. A 50th percentile score means the card outperforms half of all tracked GPUs and underperforms the other half, but this does not translate into a specific frame rate or benchmark number. Without rival deltas or absolute scores, the practical performance of the X1900 CrossFire Edition cannot be quantified beyond this relative ranking.

The lack of benchmark data also means that the card's theoretical capabilities—such as its 10.00 GPixel/s pixel fill rate and 10.00 GTexel/s texture fill rate—cannot be validated against real-world workloads. These figures are derived from the 16 ROPs and 16 TMUs operating at the card's clock speeds, but they remain theoretical maxima that may not be achievable in practice due to driver overhead or memory bandwidth constraints.

Who Should Consider It

Given the 50th percentile standing and the absence of benchmark scores, the X1900 CrossFire Edition is not a candidate for modern gaming at any resolution or settings level. The card's DirectX 9.0c support and partial OpenGL 3.0 compatibility restrict it to software from the mid-2000s era, where it would have been a capable performer for its time but is now outclassed by even entry-level integrated graphics.

For users running legacy applications that are specifically optimized for DirectX 9.0c, this card could still function, but the lack of benchmark data makes it impossible to recommend specific resolution or settings combinations. The 512 MB GDDR3 memory and 256-bit bus width suggest it was designed for 1280x1024 or 1600x1200 resolutions in its heyday, but without test results, these are speculative extrapolations rather than verified capabilities.

The card's end-of-life status and 2006 release date further diminish its relevance for contemporary use. Collectors or retro-enthusiasts might consider it for period-accurate builds, but the database provides no performance evidence to support such a decision. The 50th percentile ranking is the only guidance, and it offers no actionable advice for resolution or settings selection.

Memory Subsystem

The X1900 CrossFire Edition is equipped with 512 MB of GDDR3 memory on a 256-bit bus, yielding a memory bandwidth of 46.40 GB/s. The memory clock is rated at 725 MHz, which translates to 1450 Mbps effective due to double data rate signaling. This configuration was standard for high-end cards of its generation, but the bandwidth figure is modest by modern standards.

For high-resolution workloads, the 46.40 GB/s bandwidth would have been a limiting factor even at launch. The 256-bit bus width is a balanced choice, but the relatively modest memory clock keeps total bandwidth in check. At 1600x1200 or higher resolutions with anti-aliasing enabled, the card would likely have hit memory bandwidth ceilings before fill-rate limits, a common bottleneck for DirectX 9-era GPUs.

The 512 MB capacity is also a constraint, as later games from the 2006-2007 period began to require more video memory for high-detail textures. The 256-bit interface does allow for efficient memory utilization, but the absolute size and bandwidth figures place this card firmly in the legacy category, where it cannot satisfy the memory demands of modern titles that routinely use multiple gigabytes of VRAM.

Power and Cooling

The X1900 CrossFire Edition has a thermal design power of 100 W, which is modest for a dual-slot card of its era. The suggested power supply is 300 W, and the card requires a single 6-pin power connector for operation. These power requirements are straightforward and would have been easily met by standard power supplies available in 2006.

The dual-slot cooling solution is necessary given the 100 W TDP, and it would have provided adequate thermal management for the R580 chip under typical gaming loads. The 90 nm process node from TSMC, with 384 million transistors on a 352 mm² die, contributes to a transistor density of 1.1 million transistors per square millimeter. This density is low by modern standards, reflecting the larger feature sizes of the manufacturing process.

For the end user, the 300 W PSU recommendation is a guideline that assumes a typical system configuration. The single 6-pin connector simplifies installation, as no adapter or additional cabling is required. The power draw of 100 W is also the only wattage figure available, and it indicates that this card would not stress a modern power supply, though its performance ceiling makes such an installation impractical for anything beyond legacy use.