AMD Radeon HD 6450A

The AMD Radeon HD 6450A is an end-of-life graphics module built on the Caicos chip with TeraScale 2 architecture, fabricated by TSMC on a 40 nm process. It integrates 370 million transistors into a 67 mm² die, yielding a transistor density of 5.5M per mm². Released on 2011-04-06, it targets all-in-one systems via an MXM-A (3.0) bus interface. With a 25 W TDP and no recorded benchmark scores, its database percentile stands at 50, a median position among all tracked GPUs, though the average benchmark score of 0 indicates no measured performance data exists.

Benchmark Performance

The fact pack lists no individual benchmark scores; the average benchmark score is 0, and the percentile vs all GPUs is 50. This places the HD 6450A at the exact midpoint of the database's GPU population, yet the zero average reveals that this percentile is not backed by any logged performance measurements. The compute specifications provide the only quantitative grounding: FP32 throughput is 200.0 GFLOPS, pixel fill rate is 2.500 GPixel/s, and texture fill rate is 5.000 GTexel/s. These figures, derived from the 160 shading units, 8 TMUs, and 4 ROPs, describe a part engineered for minimal graphical workloads rather than sustained compute. The 200.0 GFLOPS ceiling means that any shader-heavy task will quickly saturate the pipeline, while the 2.500 GPixel/s fill rate limits resolution and anti-aliasing capabilities. Because the nearestRivals field is empty, no percentage deltas against competing products can be computed; the 50th percentile is the sole relative indicator, and its validity is compromised by the absence of measured scores. In effect, the HD 6450A's benchmark profile is defined entirely by its architectural limits, not by empirical results.

Memory Subsystem

The HD 6450A is equipped with 512 MB of DDR3 memory on a 64-bit bus. The memory clock runs at 533 MHz, translating to 1066 Mbps effective, and the resulting bandwidth is 8.528 GB/s. This is an exceptionally narrow and low-capacity configuration. For high-resolution workloads, the 512 MB capacity is a primary constraint — framebuffers and texture data at 1080p or higher will exhaust the available memory rapidly, forcing the GPU to fall back to slower system memory or reduce detail levels. The 64-bit bus width compounds this limitation, as the 8.528 GB/s bandwidth is a fraction of what contemporary discrete GPUs offered even in 2011. The memory subsystem is balanced for low-resolution, low-detail scenarios typical of all-in-one systems, where the GPU outputs to portable device-dependent displays. The DDR3 type is standard for the era, but the small capacity and narrow bus mean that any attempt to scale resolution will degrade performance sharply; the data shows no headroom for high-detail textures or large render targets. The 533 MHz memory clock, while modest, is consistent with the low-power design ethos of the 25 W TDP.

Power and Cooling

The TDP is 25 W, a very low figure that reflects the small die size and conservative clock speeds. The card is an MXM Module with a slot width of "MXM Module" and bus interface MXM-A (3.0). No power connector is specified in the data, and no suggested PSU is listed; the 25 W TDP indicates that power draw is minimal, likely supplied entirely through the MXM slot's standard power rails. For cooling, the low TDP means a passive or small active cooler would suffice, though the fact pack does not specify cooler requirements. The MXM form factor is designed for all-in-one and portable systems, where space and thermal budgets are tight. The absence of a PSU recommendation in the data suggests that system integrators are expected to handle power delivery through the module interface, and the lack of a power connector field implies that no external power input is required. The 25 W figure is the only power metric available, and it places the HD 6450A in the lowest tier of GPU power consumption, making it suitable for thermally constrained chassis.

How It Compares

The fact pack's nearestRivals field is empty, so no direct rival comparisons with names, scores, or deltaPct values are available. The only comparative metric is the percentileVsAllGpus of 50, which places the HD 6450A exactly at the median of the database's GPU distribution. However, the average benchmark score of 0 indicates that this percentile is not derived from measured performance data; it is a positional placeholder rather than a performance verdict. Given its release date of 2011-04-06 and end-of-life status, the HD 6450A occupies a legacy position in the database. Without rival data, its standing can only be inferred from its own specifications: 160 shading units, 200.0 GFLOPS, and 8.528 GB/s bandwidth define a part aimed at basic graphics output rather than gaming or compute. The 50th percentile, taken at face value, would suggest a mid-pack GPU, but the zero benchmark score contradicts that interpretation — the percentile likely reflects the database's inclusion of many equally low-end parts rather than any measured superiority. In the absence of nearestRivals, no percentage deltas can be reported, and any attempt to position the HD 6450A against specific competitors would require data not present in the fact pack.

Ray Tracing and Feature Set

The HD 6450A has no ray tracing cores and no tensor cores listed in the fact pack; both fields are null. This is consistent with its TeraScale 2 architecture, which predates dedicated ray tracing hardware. API support includes DirectX 11.2 (11_0) and OpenGL 4.4, while Vulkan is not listed. The DirectX 11.2 (11_0) feature level means the GPU supports the DirectX 11 feature set but not later versions, limiting modern graphics API compatibility. OpenGL 4.4 support provides a baseline for cross-platform applications, though the absence of Vulkan in the data means no Vulkan driver support is documented. The 160 shading units and 4 ROPs handle the fixed-function and programmable pipeline, but without RT or tensor cores, any ray tracing or machine learning workloads would fall back to compute shaders — a scenario the 200.0 GFLOPS FP32 throughput is ill-suited for. The feature set is firmly rooted in the early-2010s era, with no modern acceleration blocks. The pixel rate of 2.500 GPixel/s and texture rate of 5.000 GTexel/s further underscore that this is a rasterization-focused part, with no dedicated hardware for the advanced features that would appear in later generations. The API list, comprising DirectX 11.2 (11_0) and OpenGL 4.4, represents the full extent of software compatibility; the lack of Vulkan support means that any Vulkan-based application will not run on this GPU.