Radeon RX 7400 vs HD 6630M Mac Edition
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 223 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 50.92 |
| Architecture | TeraScale 2 (2009−2015) | RDNA 3.0 (2022−2026) |
| GPU code name | Whistler | Navi 33 |
| Market segment | Laptop | Desktop |
| Release date | 4 January 2011 (15 years ago) | 8 August 2025 (less than a year 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 | 480 | 1792 |
| Core clock speed | 500 MHz | 1452 MHz |
| Boost clock speed | no data | 2300 MHz |
| Number of transistors | 716 million | 13,300 million |
| Manufacturing process technology | 40 nm | 6 nm |
| Power consumption (TDP) | 26 Watt | 43 Watt |
| Texture fill rate | 12.00 | 257.6 |
| Floating-point processing power | 0.48 TFLOPS | 16.49 TFLOPS |
| ROPs | 8 | 64 |
| TMUs | 24 | 112 |
| Ray Tracing Cores | no data | 28 |
| L0 Cache | no data | 448 KB |
| L1 Cache | no data | 512 KB |
| L2 Cache | no data | 2 MB |
| L3 Cache | no data | 64 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 | PCIe 2.0 x16 | PCIe 4.0 x8 |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 1x 6-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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 256 MB | 8 GB |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 600 MHz | 2250 MHz |
| Memory bandwidth | 19.2 GB/s | 288.0 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 2.1a, 3x DisplayPort 2.1 |
| 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 | 6.8 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 2.2 |
| Vulkan | N/A | 1.3 |
Pros & cons summary
| Recency | 4 January 2011 | 8 August 2025 |
| Maximum RAM amount | 256 MB | 8 GB |
| Chip lithography | 40 nm | 6 nm |
| Power consumption (TDP) | 26 Watt | 43 Watt |
HD 6630M Mac Edition has 65.4% lower power consumption.
RX 7400, on the other hand, has an age advantage of 14 years, a 3100% higher maximum VRAM amount, and a 566.7% more advanced lithography process.
We couldn't decide between Radeon HD 6630M Mac Edition and Radeon RX 7400. We've got no test results to judge.
Be aware that Radeon HD 6630M Mac Edition is a notebook graphics card while Radeon RX 7400 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.
