GeForce 805A vs Tesla K20c
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 565 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.16 | no data |
| Power efficiency | 2.85 | no data |
| Architecture | Kepler (2012−2018) | Kepler 2.0 (2013−2015) |
| GPU code name | GK110 | GK208 |
| Market segment | Workstation | Laptop |
| Release date | 12 November 2012 (13 years ago) | 22 July 2014 (12 years ago) |
| Launch price (MSRP) | $3,199 | no data |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
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 | 2496 | 192 |
| Core clock speed | 706 MHz | 719 MHz |
| Boost clock speed | no data | 758 MHz |
| Number of transistors | 7,080 million | 915 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 225 Watt | 15 Watt |
| Texture fill rate | 146.8 | 12.13 |
| Floating-point processing power | 3.524 TFLOPS | 0.2911 TFLOPS |
| ROPs | 40 | 8 |
| TMUs | 208 | 16 |
| L1 Cache | 208 KB | 32 KB |
| L2 Cache | 1280 KB | 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).
| Interface | PCIe 2.0 x16 | PCIe 3.0 x8 |
| Length | 267 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | 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 | GDDR5 | DDR3 |
| Maximum RAM amount | 5 GB | 1 GB |
| Memory bus width | 320 Bit | 64 Bit |
| Memory clock speed | 1300 MHz | 1001 MHz |
| Memory bandwidth | 208.0 GB/s | 16.02 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) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | 3.5 | 3.5 |
Pros & cons summary
| Recency | 12 November 2012 | 22 July 2014 |
| Maximum RAM amount | 5 GB | 1 GB |
| Power consumption (TDP) | 225 Watt | 15 Watt |
Tesla K20c has a 400% higher maximum VRAM amount.
GeForce 805A, on the other hand, has an age advantage of 1 year, and 1400% lower power consumption.
We couldn't decide between Tesla K20c and GeForce 805A. We've got no test results to judge.
Be aware that Tesla K20c is a workstation graphics card while GeForce 805A is a notebook one.
Other comparisons
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