Radeon RX 6900 vs HD 7450A
Aggregate performance score
We've compared Radeon HD 7450A with Radeon RX 6900, including specs and performance data.
RX 6900 outperforms HD 7450A by a whopping 9151% 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 | 1233 | 36 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.13 | 19.27 |
| Architecture | TeraScale 2 (2009−2015) | RDNA 2.0 (2020−2025) |
| GPU code name | Caicos | Navi 21 |
| Market segment | Laptop | Desktop |
| Release date | 5 January 2012 (14 years ago) | 28 October 2020 (5 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 | 4608 |
| Core clock speed | 625 MHz | no data |
| Boost clock speed | no data | 2105 MHz |
| Number of transistors | 370 million | 23,000 million |
| Manufacturing process technology | 40 nm | 7 nm |
| Power consumption (TDP) | 25 Watt | 255 Watt |
| Texture fill rate | 5.000 | 606.2 |
| Floating-point processing power | 0.2 TFLOPS | 19.4 TFLOPS |
| ROPs | 4 | 64 |
| TMUs | 8 | 288 |
| L1 Cache | 16 KB | no data |
| L2 Cache | 128 KB | no data |
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 4.0 x16 |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 2x 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 | GDDR3 | GDDR6 |
| Maximum RAM amount | 512 MB | 16 GB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 800 MHz | 16 GB/s |
| Memory bandwidth | 12.8 GB/s | 512.0 GB/s |
| Resizable BAR | - | + |
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, 2x DisplayPort, 1x USB Type-C |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.0 | 6.5 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | N/A | 1.2 |
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 | 0.69 | 63.83 |
| Recency | 5 January 2012 | 28 October 2020 |
| Maximum RAM amount | 512 MB | 16 GB |
| Chip lithography | 40 nm | 7 nm |
| Power consumption (TDP) | 25 Watt | 255 Watt |
HD 7450A has 920% lower power consumption.
RX 6900, on the other hand, has a 9151% higher aggregate performance score, an age advantage of 8 years, a 3100% higher maximum VRAM amount, and a 471% more advanced lithography process.
The Radeon RX 6900 is our recommended choice as it beats the Radeon HD 7450A in performance tests.
Be aware that Radeon HD 7450A is a notebook graphics card while Radeon RX 6900 is a desktop one.
Other comparisons
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