Tesla K20s vs Radeon R9 270 1024SP
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | GCN 1.0 (2012−2020) | Kepler (2012−2018) |
| GPU code name | Pitcairn | GK110 |
| Market segment | Desktop | Workstation |
| Release date | 13 March 2015 (11 years ago) | 18 February 2013 (13 years ago) |
| Launch price (MSRP) | no data | $3,199 |
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 | 1024 | 2496 |
| Core clock speed | 900 MHz | 575 MHz |
| Boost clock speed | 925 MHz | no data |
| Number of transistors | 2,800 million | 7,080 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 150 Watt | 225 Watt |
| Texture fill rate | 59.20 | 119.6 |
| Floating-point processing power | 1.894 TFLOPS | 2.87 TFLOPS |
| ROPs | 32 | 40 |
| TMUs | 64 | 208 |
| L1 Cache | 256 KB | 208 KB |
| L2 Cache | 512 KB | 1280 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 3.0 x16 | PCIe 2.0 x16 |
| Length | no data | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-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 | GDDR5 |
| Maximum RAM amount | 2 GB | 5 GB |
| Memory bus width | 256 Bit | 320 Bit |
| Memory clock speed | 1200 MHz | 1300 MHz |
| Memory bandwidth | 153.6 GB/s | 208.0 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 | 2x DVI, 1x HDMI, 1x DisplayPort | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2.131 | 1.1.126 |
| CUDA | - | 3.5 |
Pros & cons summary
| Recency | 13 March 2015 | 18 February 2013 |
| Maximum RAM amount | 2 GB | 5 GB |
| Power consumption (TDP) | 150 Watt | 225 Watt |
R9 270 1024SP has an age advantage of 2 years, and 50% lower power consumption.
Tesla K20s, on the other hand, has a 150% higher maximum VRAM amount.
We couldn't decide between Radeon R9 270 1024SP and Tesla K20s. We've got no test results to judge.
Be aware that Radeon R9 270 1024SP is a desktop graphics card while Tesla K20s is a workstation one.
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