Radeon RX 580X vs HD 6450A
Aggregate performance score
We've compared Radeon HD 6450A with Radeon RX 580X, including specs and performance data.
580X outperforms HD 6450A by a whopping 2792% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1260 | 341 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.91 | 7.46 |
| Architecture | TeraScale 2 (2009−2015) | GCN 4.0 (2016−2020) |
| GPU code name | Caicos | Polaris 20 |
| Market segment | Laptop | Desktop |
| Release date | 7 April 2011 (14 years ago) | 11 April 2018 (7 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 160 | 2304 |
| Core clock speed | 625 MHz | 1257 MHz |
| Boost clock speed | no data | 1340 MHz |
| Number of transistors | 370 million | 5,700 million |
| Manufacturing process technology | 40 nm | 14 nm |
| Power consumption (TDP) | 25 Watt | 185 Watt |
| Texture fill rate | 5.000 | 193.0 |
| Floating-point processing power | 0.2 TFLOPS | 6.175 TFLOPS |
| ROPs | 4 | 32 |
| TMUs | 8 | 144 |
| L1 Cache | 16 KB | 576 KB |
| L2 Cache | 128 KB | 2 MB |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | MXM-A (3.0) | PCIe 3.0 x16 |
| Length | no data | 241 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 1x 8-pin |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 512 MB | 8 GB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 533 MHz | 2000 MHz |
| Memory bandwidth | 8.528 GB/s | 256.0 GB/s |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | 1x HDMI, 3x DisplayPort |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 (12_0) |
| Shader Model | 5.0 | 6.4 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | N/A | 1.2.131 |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 0.62 | 17.93 |
| Recency | 7 April 2011 | 11 April 2018 |
| Maximum RAM amount | 512 MB | 8 GB |
| Chip lithography | 40 nm | 14 nm |
| Power consumption (TDP) | 25 Watt | 185 Watt |
HD 6450A has 640% lower power consumption.
RX 580X, on the other hand, has a 2791.9% higher aggregate performance score, an age advantage of 7 years, a 1500% higher maximum VRAM amount, and a 185.7% more advanced lithography process.
The Radeon RX 580X is our recommended choice as it beats the Radeon HD 6450A in performance tests.
Be aware that Radeon HD 6450A is a notebook graphics card while Radeon RX 580X is a desktop one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
