Tesla C870 vs GeForce GTX 660M Mac Edition
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1023 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.26 | no data |
| Architecture | Kepler (2012−2018) | Tesla (2006−2010) |
| GPU code name | GK107 | G80 |
| Market segment | Laptop | Workstation |
| Release date | 1 April 2013 (12 years ago) | 2 May 2007 (18 years ago) |
| Launch price (MSRP) | no data | $1,499 |
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 | 384 | 128 |
| Core clock speed | 950 MHz | 600 MHz |
| Number of transistors | 1,270 million | 681 million |
| Manufacturing process technology | 28 nm | 90 nm |
| Power consumption (TDP) | 50 Watt | 171 Watt |
| Texture fill rate | 30.40 | 38.40 |
| Floating-point processing power | 0.7296 TFLOPS | 0.3456 TFLOPS |
| ROPs | 16 | 24 |
| TMUs | 32 | 32 |
| L1 Cache | 32 KB | no data |
| L2 Cache | 256 KB | 96 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 | MXM-B (3.0) | PCIe 1.0 x16 |
| 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 | GDDR5 | GDDR3 |
| Maximum RAM amount | 512 MB | 1536 MB |
| Memory bus width | 128 Bit | 384 Bit |
| Memory clock speed | 1250 MHz | 800 MHz |
| Memory bandwidth | 80 GB/s | 76.8 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 | No outputs | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 11.1 (10_0) |
| Shader Model | 5.1 | 4.0 |
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.0 | + |
Pros & cons summary
| Recency | 1 April 2013 | 2 May 2007 |
| Maximum RAM amount | 512 MB | 1536 MB |
| Chip lithography | 28 nm | 90 nm |
| Power consumption (TDP) | 50 Watt | 171 Watt |
GTX 660M Mac Edition has an age advantage of 5 years, a 221.4% more advanced lithography process, and 242% lower power consumption.
Tesla C870, on the other hand, has a 200% higher maximum VRAM amount.
We couldn't decide between GeForce GTX 660M Mac Edition and Tesla C870. We've got no test results to judge.
Be aware that GeForce GTX 660M Mac Edition is a notebook graphics card while Tesla C870 is a workstation one.
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