Tesla K20X: specs and benchmarks
Summary
NVIDIA started Tesla K20X sales 12 November 2012 at a recommended price of $7,699 . This is a Kepler architecture desktop card based on 28 nm manufacturing process and primarily aimed at designers. 6 GB of GDDR5 memory clocked at 1.3 GHz are supplied, and together with 384 Bit memory interface this creates a bandwidth of 249.6 GB/s.
Compatibility-wise, this is a dual-slot graphics card attached via PCIe 3.0 x16 interface. Its manufacturer default version has a length of 267 mm. One 6-pin and one 8-pin connectors are required, and power consumption is at 235 Watt.
Primary details
Some basic facts about Tesla K20X: architecture, market segment, release date etc.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Architecture | Kepler (2012−2018) | |
| GPU code name | GK110 | |
| Market segment | Workstation | |
| Release date | 12 November 2012 (12 years ago) | |
| Launch price (MSRP) | $7,699 | of 14,999 (Quadro Plex 7000) |
Detailed specifications
Tesla K20X's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Tesla K20X's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 2688 | of 21760 (GeForce RTX 5090) |
| Core clock speed | 732 MHz | of 2610 MHz (Radeon RX 6500 XT) |
| Number of transistors | 7,080 million | of 208,000 million (B200 SXM 192 GB) |
| Manufacturing process technology | 28 nm | of 3 nm (Arc Graphics 140V) |
| Power consumption (TDP) | 235 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 164.0 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 3.935 TFLOPS | of 109.7 (GeForce RTX 5090) |
| ROPs | 48 | of 192 (Radeon RX 7900 XTX) |
| TMUs | 224 | of 1280 (Data Center GPU Max NEXT) |
Form factor & compatibility
This section provides details about the physical dimensions of Tesla K20X and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).
| Interface | PCIe 3.0 x16 | |
| Length | 267 mm | |
| Width | 2-slot | |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin |
VRAM capacity and type
Parameters of memory installed on Tesla K20X: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.
| Memory type | GDDR5 | |
| Maximum RAM amount | 6 GB | of 294912 (Radeon Instinct MI325X) |
| Memory bus width | 384 Bit | of 8192 Bit (Radeon Instinct MI250X) |
| Memory clock speed | 1300 MHz | of 20000 (RTX 5000 Ada Generation Mobile) |
| Memory bandwidth | 249.6 GB/s | of 5,171 GB/s (Radeon Instinct MI300X) |
Connectivity and outputs
Types and number of video connectors present on Tesla K20X. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.
| Display Connectors | No outputs |
API compatibility
APIs supported by Tesla K20X, sometimes including their particular versions.
| DirectX | 12 (11_0) | |
| Shader Model | 5.1 | |
| OpenGL | 4.6 | |
| OpenCL | 1.2 | |
| Vulkan | 1.1.126 | |
| CUDA | 3.5 |
AMD equivalent
According to our data, the closest AMD alternative to Tesla K20X is Radeon Pro W5500.
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
Recommended processors
These processors are most commonly used with Tesla K20X according to our statistics.
