Tesla K40t vs Quadro K420
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 993 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.08 | no data |
| Power efficiency | 3.26 | no data |
| Architecture | Kepler (2012−2018) | Kepler (2012−2018) |
| GPU code name | GK107 | GK110B |
| Market segment | Workstation | Workstation |
| Release date | 22 July 2014 (12 years ago) | 22 November 2013 (12 years ago) |
| Launch price (MSRP) | $96.67 | $7,699 |
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 | 192 | 2880 |
| Core clock speed | 876 MHz | 745 MHz |
| Boost clock speed | no data | 876 MHz |
| Number of transistors | 1,270 million | 7,080 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 41 Watt | 245 Watt |
| Texture fill rate | 14.02 | 210.2 |
| Floating-point processing power | 0.3364 TFLOPS | 5.046 TFLOPS |
| ROPs | 16 | 48 |
| TMUs | 16 | 240 |
| L1 Cache | 16 KB | 240 KB |
| L2 Cache | 256 KB | 1536 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 x16 |
| Length | 160 mm | 267 mm |
| Width | 1" (2.5 cm) | 2-slot |
| Supplementary power connectors | None | 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 | 128 Bit | GDDR5 |
| Maximum RAM amount | 1 GB/2 GB | 12 GB |
| Memory bus width | 128 Bit | 384 Bit |
| Memory clock speed | 891 MHz | 1502 MHz |
| Memory bandwidth | Up to 29 GB/s | 288.4 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 | 1x DVI, 1x DisplayPort | No outputs |
| Number of simultaneous displays | 4 | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Vision Pro | + | no data |
| Mosaic | + | no data |
| nView Desktop Management | + | no data |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 | 12 (11_1) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | 3.0 | 3.5 |
Pros & cons summary
| Recency | 22 July 2014 | 22 November 2013 |
| Maximum RAM amount | 1 GB/2 GB | 12 GB |
| Power consumption (TDP) | 41 Watt | 245 Watt |
Quadro K420 has an age advantage of 8 months, and 498% lower power consumption.
Tesla K40t, on the other hand, has a 1100% higher maximum VRAM amount.
We couldn't decide between Quadro K420 and Tesla K40t. We've got no test results to judge.
Other comparisons
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