Radeon HD 6770 vs Tesla K20c
Aggregate performance score
We've compared Tesla K20c with Radeon HD 6770, including specs and performance data.
K20c outperforms HD 6770 by a whopping 170% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 556 | 812 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.16 | 0.54 |
| Power efficiency | 2.82 | 2.17 |
| Architecture | Kepler (2012−2018) | TeraScale 2 (2009−2015) |
| GPU code name | GK110 | Juniper |
| Market segment | Workstation | Desktop |
| Design | no data | reference |
| Release date | 12 November 2012 (13 years ago) | 21 January 2011 (15 years ago) |
| Launch price (MSRP) | $3,199 | $129 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
HD 6770 has 238% better value for money than Tesla K20c.
Performance to price scatter graph
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 | 2496 | 800 |
| Core clock speed | 706 MHz | no data |
| Boost clock speed | no data | 900 MHz |
| Number of transistors | 7,080 million | 1,040 million |
| Manufacturing process technology | 28 nm | 40 nm |
| Power consumption (TDP) | 225 Watt | 108 Watt |
| Texture fill rate | 146.8 | 34.00 |
| Floating-point processing power | 3.524 TFLOPS | 1.36 TFLOPS |
| ROPs | 40 | 16 |
| TMUs | 208 | 40 |
| L1 Cache | 208 KB | 80 KB |
| L2 Cache | 1280 KB | 256 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).
| Bus support | no data | PCIe 2.0 x16 |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Length | 267 mm | 198 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | 1x 6-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 | GDDR5 | GDDR5 |
| Maximum RAM amount | 5 GB | 1 GB |
| Memory bus width | 320 Bit | 128 Bit |
| Memory clock speed | 1300 MHz | 1050 MHz |
| Memory bandwidth | 208.0 GB/s | 76.8 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 | 2x DVI, 1x HDMI, 2x mini-DisplayPort |
| Eyefinity | - | + |
| HDMI | - | + |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| CrossFire | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | DirectX® 11 |
| Shader Model | 5.1 | 5.0 |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | - |
| CUDA | 3.5 | - |
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 8.24 | 3.05 |
| Recency | 12 November 2012 | 21 January 2011 |
| Maximum RAM amount | 5 GB | 1 GB |
| Chip lithography | 28 nm | 40 nm |
| Power consumption (TDP) | 225 Watt | 108 Watt |
Tesla K20c has a 170% higher aggregate performance score, an age advantage of 1 year, a 400% higher maximum VRAM amount, and a 43% more advanced lithography process.
HD 6770, on the other hand, has 108% lower power consumption.
The Tesla K20c is our recommended choice as it beats the Radeon HD 6770 in performance tests.
Be aware that Tesla K20c is a workstation graphics card while Radeon HD 6770 is a desktop one.
Other comparisons
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