Radeon HD 6490M Mac Edition vs GeForce 7900 GS AGP
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | Curie (2003−2013) | TeraScale 2 (2009−2015) |
| GPU code name | G71 | Seymour |
| Market segment | Desktop | Laptop |
| Release date | 2 April 2006 (19 years ago) | 2 May 2011 (14 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 | no data | 160 |
| Core clock speed | 450 MHz | 750 MHz |
| Number of transistors | 278 million | 370 million |
| Manufacturing process technology | 90 nm | 40 nm |
| Texture fill rate | 9.000 | 6.000 |
| Floating-point processing power | no data | 0.24 TFLOPS |
| ROPs | 16 | 4 |
| TMUs | 20 | 8 |
| L1 Cache | no data | 16 KB |
| L2 Cache | no data | 128 KB |
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 | AGP 8x | PCIe 2.0 x16 |
| Width | 1-slot | no data |
| Supplementary power connectors | 1x Molex | no data |
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 | GDDR5 |
| Maximum RAM amount | 256 MB | 256 MB |
| Memory bus width | 256 Bit | 64 Bit |
| Memory clock speed | 660 MHz | 794 MHz |
| Memory bandwidth | 42.24 GB/s | 25.41 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 | 1x DVI, 1x S-Video | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0c (9_3) | 11.2 (11_0) |
| Shader Model | 3.0 | 5.0 |
| OpenGL | 2.1 | 4.4 |
| OpenCL | N/A | 1.2 |
| Vulkan | N/A | N/A |
Pros & cons summary
| Recency | 2 April 2006 | 2 May 2011 |
| Chip lithography | 90 nm | 40 nm |
HD 6490M Mac Edition has an age advantage of 5 years, and a 125% more advanced lithography process.
We couldn't decide between GeForce 7900 GS AGP and Radeon HD 6490M Mac Edition. We've got no test results to judge.
Be aware that GeForce 7900 GS AGP is a desktop graphics card while Radeon HD 6490M Mac Edition is a notebook one.
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