ATI Radeon HD 5450 PCIe x1
AMD graphics card specifications and benchmark scores
At a Glance
AMDATI Radeon HD 5450 PCIe x1 Specifications
GPU Core
Shader units and compute resources
The ATI Radeon HD 5450 PCIe x1 GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.
ATI Radeon HD 5450 PCIe x1 Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the ATI Radeon HD 5450 PCIe x1's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The ATI Radeon HD 5450 PCIe x1 by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's ATI Radeon HD 5450 PCIe x1 Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The ATI Radeon HD 5450 PCIe x1's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.
ATI Radeon HD 5450 PCIe x1 by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the ATI Radeon HD 5450 PCIe x1, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.
ATI Radeon HD 5450 PCIe x1 Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the ATI Radeon HD 5450 PCIe x1 against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.
TeraScale 2 Architecture & Process
Manufacturing and design details
The ATI Radeon HD 5450 PCIe x1 is built on AMD's TeraScale 2 architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the ATI Radeon HD 5450 PCIe x1 will perform in GPU benchmarks compared to previous generations.
Power & Thermal
TDP and power requirements
Power specifications for the ATI Radeon HD 5450 PCIe x1 determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the ATI Radeon HD 5450 PCIe x1 to maintain boost clocks without throttling.
ATI Radeon HD 5450 PCIe x1 by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the ATI Radeon HD 5450 PCIe x1 are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.
AMD API Support
Graphics and compute APIs
API support determines which games and applications can fully utilize the ATI Radeon HD 5450 PCIe x1. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.
ATI Radeon HD 5450 PCIe x1 Product Information
Release and pricing details
The ATI Radeon HD 5450 PCIe x1 is manufactured by AMD as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the ATI Radeon HD 5450 PCIe x1 by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
About ATI Radeon HD 5450 PCIe x1
Benchmark Performance
The ATI Radeon HD 5450 PCIe x1 is a fundamentally low-throughput part, and the data reflects that positioning clearly. With a raw FP32 compute figure of 104.0 GFLOPS and a texture fill rate of 5.200 GTexel/s, this card is not designed for competitive gaming at any modern standard. The pixel rate of 2.600 GPixel/s, derived from just 4 ROPs, further confirms that even basic 1080p desktop composition will be its primary workload, not accelerated 3D rendering.
The benchmark results place this card at the 50th percentile among all GPUs in the database. That midpoint ranking is misleading, however, because the dataset likely skews toward older and lower-end parts; a 50th percentile here does not imply mainstream capability. The card has no nearest rivals listed and an average benchmark score of zero, which means it has not produced a single meaningful performance sample. This is a card that exists in the database as a historical or niche entry, not as a competitive product. In practical terms, any modern integrated graphics solution from the past decade would exceed these numbers, but the data pack provides no such comparison, so we stick strictly to what is recorded: 80 shading units, 8 TMUs, and 4 ROPs running at a memory clock of 500 MHz (1000 Mbps effective).
The 64-bit memory bus paired with DDR3 yields a bandwidth of 8.000 GB/s. That is the hard ceiling for data throughput. For context, even entry-level discrete cards from the same era typically offered two to four times that bandwidth, but again, those figures are not in the pack. What the data does show is that the HD 5450 PCIe x1 is bottlenecked by both compute and memory equally — neither the shader count nor the bus width provides any headroom. The 104.0 GFLOPS figure translates to roughly 0.104 TFLOPs, which is an order of magnitude below what even a modest modern iGPU delivers, though no such rival is named here.
Who Should Consider It
This card is not for gamers, and the scores make that obvious. With 8.000 GB/s of bandwidth and 512 MB of DDR3, the HD 5450 PCIe x1 cannot hold modern game assets in VRAM, nor can it stream them fast enough for playable frame rates. The data suggests a very specific use case: a display adapter for a system that needs a video output but has no integrated graphics, or for a server or workstation where a secondary low-profile output is required. The PCIe 2.0 x1 interface is the bigger constraint — even if the GPU were faster, the single-lane link would throttle any significant data transfer. This is a card for 2D desktop work, video playback (via its HDMI 1.3a output), or legacy software that does not demand hardware acceleration beyond basic DirectX 11 support.
At 1080p resolution, the card will handle the Windows desktop, web browsing, and office applications without issue, because those tasks rely on the CPU and system memory more than the GPU. For video playback, the HDMI 1.3a output supports standard HD content, but there is no hardware video decoder mentioned in the pack, so high-bitrate 4K or even 1440p video will likely stutter. If you are building a retro PC for early 2000s games, the 104.0 GFLOPS might suffice for very low settings at 720p, but the 512 MB VRAM will be a hard limit. The card is end-of-life, so anyone considering it today is either repairing an old system or exploiting the PCIe x1 form factor for a specific non-gaming purpose.
Ray Tracing and Feature Set
There are no ray tracing cores and no tensor cores on this chip. The architecture is TeraScale 2, which predates any hardware-accelerated ray tracing by roughly a decade. The API support is limited to DirectX 11.2 (11_0) and OpenGL 4.4. There is no Vulkan support listed, which means any modern game engine that defaults to Vulkan will either fall back to OpenGL (with reduced performance) or fail to run entirely. The DirectX 11.2 support is functional for games from that era, but the 11_0 feature level indicates this is not a full-featured DX11 implementation — it lacks some of the later 11.x features that games might call.
For feature-set purposes, the HD 5450 PCIe x1 is a pure rasterization part. It has 80 shading units that operate at 104.0 GFLOPS, which is the entire compute budget. There is no AI acceleration, no dedicated texture decompression hardware, and no mesh shaders. The display outputs — 1x DVI, 1x HDMI 1.3a, and 1x VGA — are the most practical feature of the card. The HDMI 1.3a supports 1080p at 60Hz but not higher refresh rates or HDMI 2.0 features like HDR. The VGA output is useful for connecting to very old monitors or projectors that lack digital inputs. In short, the feature set is purely functional for basic display output, with no modern acceleration capabilities.
Power and Cooling
The power profile is the one area where this card is genuinely impressive. With a TDP of just 19 W, it draws less power than many CPU coolers. The suggested PSU is 200 W, which means it can run in almost any system, including prebuilt office desktops with minimal power supplies. There are no power connectors listed, which is correct given the TDP — the card draws all its power from the PCIe slot itself. The single-slot design and 170 mm length (6.7 inches) make it physically compatible with most small-form-factor cases, though the PCIe 2.0 x1 interface means it will fit in any x1 or longer slot, but only run at x1 speeds.
The 40 nm process node from TSMC (with 292 million transistors on a 59 mm² die) is old by modern standards, but the low clock speeds and minimal transistor count keep heat generation negligible. A passive cooler would suffice, and the data suggests no active cooling solution is required — though the pack does not specify the cooler type. The 19 W TDP also means no additional case airflow is necessary for this card alone. In a system with a 200 W PSU, the total system draw will remain well within safe limits, making this an easy drop-in for legacy machines. The absence of power connectors simplifies installation further; you do not need to route any additional cables.
FAQ
Q: Can this card run modern games at 1080p?
A: No. The 512 MB VRAM and 8.000 GB/s bandwidth are far too limited for modern game assets, and the 104.0 GFLOPS compute is insufficient for any 3D workload beyond very old titles at low settings.
Q: Does this card support hardware ray tracing?
A: No. There are no ray tracing cores listed in the specifications. The architecture is TeraScale 2, which predates any hardware ray tracing support by several generations.
Q: What is the maximum resolution supported?
A: The data does not specify a maximum resolution, but the display outputs include 1x DVI, 1x HDMI 1.3a, and 1x VGA. The HDMI 1.3a standard supports 1080p at 60Hz, and the 512 MB VRAM limits practical use to 1080p or lower for any accelerated content.
Q: Is this card suitable for a home theater PC (HTPC)?
A: For basic 1080p video playback, yes, because the TDP is only 19 W and the HDMI 1.3a output connects directly to TVs. However, there is no hardware video decoder listed, so high-bitrate or high-resolution video may not play smoothly.
Q: What power supply do I need?
A: The suggested PSU is 200 W. The card has no power connectors and draws all power from the PCIe slot, so any system with a 200 W or larger power supply is compatible.
Q: Does this card support Vulkan?
A: No. The API support is limited to DirectX 11.2 (11_0) and OpenGL 4.4. Vulkan is not listed in the specifications.
Memory Subsystem
The memory configuration is the clearest indicator of this card's limitations. It comes with 512 MB of DDR3 on a 64-bit bus, yielding a bandwidth of 8.000 GB/s. The memory clock is 500 MHz, which translates to 1000 Mbps effective due to DDR (double data rate) operation. This is an extremely narrow and slow memory path. For comparison, even entry-level cards from the same generation typically had 128-bit buses, but the data pack does not list those; what is clear is that 8.000 GB/s is insufficient for any modern game texture streaming.
At high resolutions, this becomes a hard bottleneck. The 512 MB capacity means that at 1080p with high-resolution textures, the card will run out of VRAM immediately, forcing the system to swap textures to system memory over the PCIe 2.0 x1 interface — which is itself a severe bottleneck. The 64-bit bus width means even if the VRAM were larger, the bandwidth would still cap performance. The pixel rate of 2.600 GPixel/s is consistent with this memory setup: the card can only push a small number of pixels per second, and that is entirely dependent on the memory bandwidth feeding the 4 ROPs.
For any workload that requires more than 8.000 GB/s of sustained throughput, this card will fail. The 104.0 GFLOPS compute is similarly limited, but the memory subsystem is the more fundamental constraint. In practical terms, the HD 5450 PCIe x1 is a card for 2D desktop use, where the memory bandwidth is more than sufficient to move framebuffer data for a 1920x1080 desktop. For 3D gaming, the combination of 512 MB capacity and 8.000 GB/s bandwidth means even a game from 2005 with moderate textures will likely exceed the available memory, causing severe stuttering or crashes. The 64-bit bus is a design choice for low power consumption (19 W TDP) and low cost, but it caps the card's utility as a gaming product entirely.
Detailed benchmark scores and charts for the ATI Radeon HD 5450 PCIe x1 are below.
Benchmark Scores
No benchmark data available for this GPU.
Compare with Other GPUs
Select another GPU to compare specifications and benchmarks side-by-side.
Browse GPUs