GeForce 7900 GX2 vs GT 550M
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1080 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.90 | no data |
| Architecture | Fermi (2010−2014) | Curie (2003−2013) |
| GPU code name | GF108 | G71 |
| Market segment | Laptop | Desktop |
| Release date | 5 January 2011 (15 years ago) | 30 April 2006 (20 years ago) |
| Launch price (MSRP) | no data | $599 |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 96 | no data |
| Core clock speed | 475 MHz | 500 MHz |
| Number of transistors | 585 million | 278 million |
| Manufacturing process technology | 40 nm | 90 nm |
| Power consumption (TDP) | 35 Watt | no data |
| Texture fill rate | 7.600 | 12.00 ×2 |
| Floating-point processing power | 0.1824 TFLOPS | no data |
| ROPs | 4 | 16 ×2 |
| TMUs | 16 | 24 ×2 |
| L1 Cache | 128 KB | no data |
| L2 Cache | 256 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).
| Laptop size | large | no data |
| Interface | PCIe 2.0 x16 | PCIe 1.0 x16 |
| Length | no data | 312 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | None | 2x 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 | DDR3 | GDDR3 |
| Maximum RAM amount | 1 GB | 512 MB ×2 |
| Memory bus width | 128 Bit | 256 Bit ×2 |
| Memory clock speed | 900 MHz | 600 MHz |
| Memory bandwidth | 28.8 GB/s | 38.4 GB/s ×2 |
| 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 | Portable Device Dependent | 2x DVI, 1x S-Video |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Optimus | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 API | 9.0c (9_3) |
| Shader Model | 5.1 | 3.0 |
| OpenGL | 4.5 | 2.1 |
| OpenCL | 1.1 | N/A |
| Vulkan | N/A | N/A |
| CUDA | + | - |
Pros & cons summary
| Recency | 5 January 2011 | 30 April 2006 |
| Maximum RAM amount | 1 GB | 512 MB |
| Chip lithography | 40 nm | 90 nm |
GT 550M has an age advantage of 4 years, a 100% higher maximum VRAM amount, and a 125% more advanced lithography process.
We couldn't decide between GeForce GT 550M and GeForce 7900 GX2. We've got no test results to judge.
Be aware that GeForce GT 550M is a notebook graphics card while GeForce 7900 GX2 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.
