Radeon HD 7950 Mac Edition vs GeForce GT 640M LE
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 983 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.02 | no data |
| Power efficiency | 3.97 | no data |
| Architecture | Fermi (2010−2014) | GCN 1.0 (2012−2020) |
| GPU code name | GF108 | Tahiti |
| Market segment | Laptop | Desktop |
| Release date | 4 May 2012 (13 years ago) | 7 March 2013 (12 years ago) |
| Launch price (MSRP) | $849.99 | $449 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
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 | Up to 384 | 1792 |
| Core clock speed | Up to 500 MHz | 800 MHz |
| Number of transistors | 585 million | 4,313 million |
| Manufacturing process technology | 40 nm | 28 nm |
| Power consumption (TDP) | 20 Watt | 200 Watt |
| Texture fill rate | 12.05 | 89.60 |
| Floating-point processing power | 0.289 TFLOPS | 2.867 TFLOPS |
| ROPs | 4 | 32 |
| TMUs | 16 | 112 |
| L1 Cache | 128 KB | 448 KB |
| L2 Cache | 256 KB | 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 | medium sized | no data |
| Bus support | PCI Express 2.0, PCI Express 3.0 | no data |
| Interface | PCIe 2.0 x16 | 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 | DDR3\DDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 3 GB |
| Memory bus width | 128bit | 384 Bit |
| Memory clock speed | 785 MHz | 1250 MHz |
| Memory bandwidth | Up to 28.8 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 | + | + |
| HDCP | + | - |
| Maximum VGA resolution | Up to 2048x1536 | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Blu-Ray | + | - |
| Optimus | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 API | 12 (11_1) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.1 | 1.2 |
| Vulkan | N/A | 1.2.131 |
| CUDA | + | - |
Pros & cons summary
| Recency | 4 May 2012 | 7 March 2013 |
| Maximum RAM amount | 2 GB | 3 GB |
| Chip lithography | 40 nm | 28 nm |
| Power consumption (TDP) | 20 Watt | 200 Watt |
GT 640M LE has 900% lower power consumption.
HD 7950 Mac Edition, on the other hand, has an age advantage of 10 months, a 50% higher maximum VRAM amount, and a 42.9% more advanced lithography process.
We couldn't decide between GeForce GT 640M LE and Radeon HD 7950 Mac Edition. We've got no test results to judge.
Be aware that GeForce GT 640M LE is a notebook graphics card while Radeon HD 7950 Mac Edition is a desktop one.
Other comparisons
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