AMD Radeon HD 7450A

How It Compares

The AMD Radeon HD 7450A occupies a distinctive niche in the benchmark database, sitting at the 50th percentile of all GPUs. With an average benchmark score of zero, it represents a baseline entry point rather than a competitive performer. Its position is defined less by direct rivals and more by its role as a minimal-display solution in all-in-one systems.

Data shows the HD 7450A is built on the TeraScale 2 architecture with the Caicos chip, manufactured on TSMC's 40 nm process. The GPU packs 370 million transistors into a 67 mm² die, yielding a transistor density of 5.5M per mm². This places it firmly in the low-power, low-performance tier of its generation.

The nearestRivals field is empty, which means the HD 7450A has no direct comparable products in the current database. This absence of rivals is itself informative — it signals that this GPU was designed for a specific OEM integration role, not for the retail add-in-board market. Consequently, its performance profile must be understood through its absolute specifications rather than relative comparisons.

Ray Tracing and Feature Set

The HD 7450A provides no ray tracing cores and no tensor cores. This is consistent with its TeraScale 2 architecture, which predates dedicated hardware for these workloads. The GPU relies entirely on its 160 shading units for all compute and graphics tasks, with 8 texture mapping units and 4 render output units handling texture and pixel processing.

API support is limited to DirectX 11.2 (11_0) and OpenGL 4.4. There is no Vulkan support listed, which means modern cross-platform graphics APIs are unavailable. This restricts the HD 7450A to legacy titles and applications designed for DirectX 11 or earlier. The lack of hardware ray tracing means any ray-traced effects must be handled through software fallbacks, which would be impractical given the GPU's compute throughput.

The memory subsystem consists of 512 MB of GDDR3 on a 64-bit bus, running at 800 MHz with an effective data rate of 1600 Mbps. This yields a bandwidth of 12.80 GB/s, which is modest even by 2012 standards. The small frame buffer and narrow bus severely limit texture-heavy workloads and high-resolution rendering. Pixel rate is 2.500 GPixel/s and texture rate is 5.000 GTexel/s, both figures that cap the GPU's ability to fill large framebuffers or apply complex shader effects.

FP32 performance is rated at 200.0 GFLOPS. No FP16 figure is provided, indicating that half-precision compute was not a design consideration. The absence of tensor cores further confirms that this GPU has no machine-learning acceleration capabilities.

Power and Cooling

The HD 7450A draws a maximum of 25 W, placing it in the ultra-low-power category. This modest TDP allows for passive cooling solutions in many chassis configurations, though the specific cooling implementation is dependent on the host system. The slot width is listed as MXM Module, meaning this is a mobile or all-in-one form factor rather than a standard desktop expansion card.

No power connectors are required, and no suggested PSU is listed. This indicates the GPU draws all its power through the MXM slot interface, simplifying system integration. The bus interface is MXM-A (3.0), which is a compact module standard used in all-in-one PCs and small-form-factor systems. Display outputs are marked as "Portable Device Dependent," meaning the actual video connectors vary by the host system's design — the GPU provides the rendering engine while the OEM decides on physical ports.

The 25 W power envelope is a key differentiator. It allows the HD 7450A to operate within the thermal budget of tightly integrated systems where a full-height desktop GPU would be impractical. The lack of external power connectors and the absence of a PSU recommendation underscore that this is a drop-in solution for pre-built machines, not a component for DIY builders.

Who Should Consider It

The HD 7450A is suitable for basic desktop productivity and legacy software. With 160 shading units and 4 ROPs, it can handle 2D applications, web browsing, and office suites without strain. For video playback, the GPU's capabilities are adequate for standard-definition and low-resolution high-definition content, though the 12.80 GB/s bandwidth and 512 MB memory limit its ability to handle high-bitrate streams smoothly.

Gamers should look elsewhere. The pixel rate of 2.500 GPixel/s and texture rate of 5.000 GTexel/s are insufficient for modern 3D titles at any resolution above minimal settings. The 50th percentile standing reflects a median position in the overall GPU population, but this is a statistical artifact of including integrated and low-end parts — among discrete GPUs from its era, the HD 7450A sits near the bottom.

The intended use case is clear from the MXM form factor and portable-device-dependent outputs: this is an OEM part for all-in-one desktops where basic graphics acceleration is needed but space and power are constrained. Users who require more than 2D rendering or very light 3D should consider a GPU with a higher shading-unit count and wider memory bus.

Benchmark Performance

The benchmark data shows an average score of zero, which complicates direct performance analysis. However, the specifications provide a clear picture of the GPU's capabilities relative to its architectural peers. The HD 7450A's FP32 throughput of 200.0 GFLOPS is derived from 160 shading units operating at a modest clock, with the memory speed of 800 MHz acting as a bottleneck in many workloads.

The 64-bit memory bus with 12.80 GB/s bandwidth is the most severe constraint. For comparison, GPUs from the same generation with 128-bit buses typically offer double the bandwidth, which directly impacts fill-rate-bound scenarios. The 4 ROPs limit pixel throughput to 2.500 GPixel/s, meaning even simple 3D scenes will see reduced frame rates at 1080p.

The empty nearestRivals field means we cannot cite exact delta percentages against specific competitors. Instead, the data indicates that the HD 7450A's performance class is defined by its absolute specifications. The 5.000 GTexel/s texture rate suggests that texture-heavy workloads, such as modern game engines with high-resolution assets, will cause significant frame drops. The 512 MB memory capacity also caps texture detail levels and can cause swapping in applications that exceed the frame buffer.

In multi-core or multi-threaded scenarios, the GPU's 160 shading units are organized in a configuration that TeraScale 2 architecture handles efficiently for its era. However, the 40 nm process and 25 W TDP limit clock speeds, and the lack of boost clocks means the GPU operates at a fixed frequency. This predictability is an advantage for OEMs designing cooling solutions, but it also means there is no headroom for performance scaling under favorable thermal conditions.

The DirectX 11.2 feature level 11_0 support is the highest API available. This restricts the GPU to games and applications that do not require DirectX 12 or Vulkan. For users running legacy software from 2012 or earlier, the HD 7450A can provide acceptable performance at low resolutions and reduced detail settings. However, benchmark results indicate that even at 720p, modern titles would struggle to maintain playable frame rates.

In summary, the HD 7450A is a low-power, low-performance GPU designed for basic display output in all-in-one systems. Its 25 W TDP and MXM form factor make it ideal for space-constrained builds, but its 200.0 GFLOPS compute and 12.80 GB/s bandwidth place it at the entry level of its generation. The 50th percentile standing is a reflection of the broad GPU landscape, not an indicator of competitive performance. Users seeking 3D gaming or GPU-accelerated compute should pursue alternatives with higher shading-unit counts and wider memory interfaces.