Tesla K20X vs Radeon HD 8400
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1258 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.04 | no data |
| Architecture | GCN 2.0 (2013−2017) | Kepler (2012−2018) |
| GPU code name | Kalindi | GK110 |
| Market segment | Desktop | Workstation |
| Release date | 23 November 2013 (12 years ago) | 12 November 2012 (13 years ago) |
| Launch price (MSRP) | no data | $7,699 |
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 | 128 | 2688 |
| Core clock speed | 400 MHz | 732 MHz |
| Number of transistors | 1,178 million | 7,080 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 25 Watt | 235 Watt |
| Texture fill rate | 3.200 | 164.0 |
| Floating-point processing power | 0.1024 TFLOPS | 3.935 TFLOPS |
| ROPs | 4 | 48 |
| TMUs | 8 | 224 |
| L1 Cache | no data | 224 KB |
| L2 Cache | no data | 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 | IGP | PCIe 3.0 x16 |
| Length | no data | 267 mm |
| Width | IGP | 2-slot |
| Supplementary power connectors | no data | 1x 6-pin + 1x 8-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 | System Shared | GDDR5 |
| Maximum RAM amount | System Shared | 6 GB |
| Memory bus width | System Shared | 384 Bit |
| Memory clock speed | System Shared | 1300 MHz |
| Memory bandwidth | no data | 249.6 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 | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 (11_0) |
| Shader Model | 6.3 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2.131 | 1.1.126 |
| CUDA | - | 3.5 |
Pros & cons summary
| Recency | 23 November 2013 | 12 November 2012 |
| Power consumption (TDP) | 25 Watt | 235 Watt |
HD 8400 has an age advantage of 1 year, and 840% lower power consumption.
We couldn't decide between Radeon HD 8400 and Tesla K20X. We've got no test results to judge.
Be aware that Radeon HD 8400 is a desktop graphics card while Tesla K20X is a workstation one.
Other comparisons
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