Radeon HD 7490M vs HD 4200
Primary Details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | RV6xx (2007−2010) | Terascale 2 (2009−2015) |
| GPU code name | RV620 | Seymour XTX |
| Market segment | Laptop | Laptop |
| Release date | 10 September 2009 (14 years ago) | 7 December 2011 (12 years ago) |
| Current price | $139 | $338 |
Detailed Specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 40 | 160 |
| Core clock speed | 500 MHz | 800 MHz |
| Number of transistors | 181 million | 370 million |
| Manufacturing process technology | 55 nm | 40 nm |
| Power consumption (TDP) | no data | 9 Watt |
| Texture fill rate | 2.000 | 6.400 |
| Floating-point performance | no data | 256.0 gflops |
Form Factor & Compatibility
Information on Radeon HD 4200 and Radeon HD 7490M compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Memory type | System Shared | GDDR5 |
| Maximum RAM amount | 512 MB | 512 MB |
| Memory bus width | System Shared | 64 Bit |
| Memory clock speed | System Shared | 3800 MHz |
| Memory bandwidth | no data | 30.4 GB/s |
| Shared memory | + | - |
Connectivity and Outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | No outputs | No outputs |
API Compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 10.1 (10_1) | 11.2 (11_0) |
| Shader Model | 4.1 | 5.0 |
| OpenGL | 3.3 | 4.4 |
| OpenCL | 1.0 | 1.2 |
| Vulkan | N/A | N/A |
Pros & Cons Summary
| Recency | 10 September 2009 | 7 December 2011 |
| Chip lithography | 55 nm | 40 nm |
We couldn't decide between Radeon HD 4200 and Radeon HD 7490M. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with Similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
