Radeon HD 6490M Mac Edition vs GeForce Go 7800 GTX
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1285 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 0.58 | no data |
| Architecture | Curie (2003−2013) | TeraScale 2 (2009−2015) |
| GPU code name | G70 | Seymour |
| Market segment | Laptop | Laptop |
| Release date | 29 September 2005 (20 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 | 32 | 160 |
| Core clock speed | 440 MHz | 750 MHz |
| Boost clock speed | 440 MHz | no data |
| Number of transistors | 302 million | 370 million |
| Manufacturing process technology | 110 nm | 40 nm |
| Power consumption (TDP) | 65 Watt | no data |
| Texture fill rate | 10.56 | 6.000 |
| Floating-point processing power | no data | 0.24 TFLOPS |
| ROPs | 24 | 4 |
| TMUs | 24 | 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).
| Laptop size | large | no data |
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Supplementary power connectors | None | 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 | 512 MB | 256 MB |
| Memory bus width | 256 Bit | 64 Bit |
| Memory clock speed | 550 MHz | 794 MHz |
| Memory bandwidth | 35.2 GB/s | 25.41 GB/s |
| Shared memory | - | - |
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 | 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 | 29 September 2005 | 2 May 2011 |
| Maximum RAM amount | 512 MB | 256 MB |
| Chip lithography | 110 nm | 40 nm |
Go 7800 GTX has a 100% higher maximum VRAM amount.
HD 6490M Mac Edition, on the other hand, has an age advantage of 5 years, and a 175% more advanced lithography process.
We couldn't decide between GeForce Go 7800 GTX and Radeon HD 6490M Mac Edition. We've got no test results to judge.
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