Radeon HD 7950 Mac Edition vs GeForce Go 7900 GS
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1310 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 1.61 | no data |
| Architecture | Curie (2003−2013) | GCN 1.0 (2012−2020) |
| GPU code name | G71 | Tahiti |
| Market segment | Laptop | Desktop |
| Release date | 18 April 2006 (19 years ago) | 7 March 2013 (12 years ago) |
| Launch price (MSRP) | no data | $449 |
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 | 27 | 1792 |
| Core clock speed | 375 MHz | 800 MHz |
| Boost clock speed | 375 MHz | no data |
| Number of transistors | 278 million | 4,313 million |
| Manufacturing process technology | 90 nm | 28 nm |
| Power consumption (TDP) | 20 Watt | 200 Watt |
| Texture fill rate | 7.500 | 89.60 |
| Floating-point processing power | no data | 2.867 TFLOPS |
| ROPs | 16 | 32 |
| TMUs | 20 | 112 |
| L1 Cache | no data | 448 KB |
| L2 Cache | no data | 768 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 | MXM-II | PCIe 3.0 x16 |
| Length | no data | 279 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 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 | GDDR3 | GDDR5 |
| Maximum RAM amount | 512 MB | 3 GB |
| Memory bus width | 256 Bit | 384 Bit |
| Memory clock speed | 500 MHz | 1250 MHz |
| Memory bandwidth | 32 GB/s | 240.0 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 | 1x DVI, 1x HDMI, 2x mini-DisplayPort |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0c (9_3) | 12 (11_1) |
| Shader Model | 3.0 | 5.1 |
| OpenGL | 2.1 | 4.6 |
| OpenCL | N/A | 1.2 |
| Vulkan | N/A | 1.2.131 |
Pros & cons summary
| Recency | 18 April 2006 | 7 March 2013 |
| Maximum RAM amount | 512 MB | 3 GB |
| Chip lithography | 90 nm | 28 nm |
| Power consumption (TDP) | 20 Watt | 200 Watt |
Go 7900 GS has 900% lower power consumption.
HD 7950 Mac Edition, on the other hand, has an age advantage of 6 years, a 500% higher maximum VRAM amount, and a 221.4% more advanced lithography process.
We couldn't decide between GeForce Go 7900 GS and Radeon HD 7950 Mac Edition. We've got no test results to judge.
Be aware that GeForce Go 7900 GS is a notebook graphics card while Radeon HD 7950 Mac Edition is a desktop one.
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