Radeon Pro Vega 20 vs HD 6770 Green Edition
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 440 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 9.51 |
| Architecture | TeraScale 2 (2009−2015) | GCN 5.0 (2017−2020) |
| GPU code name | Juniper | Vega 12 |
| Market segment | Desktop | Mobile workstation |
| Release date | 19 April 2013 (12 years ago) | 14 November 2018 (7 years ago) |
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 | 720 | 1280 |
| Core clock speed | 700 MHz | 815 MHz |
| Boost clock speed | no data | 1283 MHz |
| Number of transistors | 1,040 million | no data |
| Manufacturing process technology | 40 nm | 14 nm |
| Power consumption (TDP) | 86 Watt | 100 Watt |
| Texture fill rate | 25.20 | 102.6 |
| Floating-point processing power | 1.008 TFLOPS | 3.284 TFLOPS |
| ROPs | 16 | 32 |
| TMUs | 36 | 80 |
| L1 Cache | 72 KB | 320 KB |
| L2 Cache | 256 KB | 1024 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).
| Laptop size | no data | large |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Length | 170 mm | no data |
| Width | 2-slot | no data |
| 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 | GDDR3 | HBM2 |
| Maximum RAM amount | 2 GB | 4 GB |
| Memory bus width | 128 Bit | 1024 Bit |
| Memory clock speed | 667 MHz | 740 MHz |
| Memory bandwidth | 21.34 GB/s | 189.4 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 | 2x DVI, 1x HDMI, 2x mini-DisplayPort | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.2 (11_0) | 12 (12_1) |
| Shader Model | 5.0 | 6.3 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | N/A | 1.2.131 |
Pros & cons summary
| Recency | 19 April 2013 | 14 November 2018 |
| Maximum RAM amount | 2 GB | 4 GB |
| Chip lithography | 40 nm | 14 nm |
| Power consumption (TDP) | 86 Watt | 100 Watt |
HD 6770 Green Edition has 16.3% lower power consumption.
Pro Vega 20, on the other hand, has an age advantage of 5 years, a 100% higher maximum VRAM amount, and a 185.7% more advanced lithography process.
We couldn't decide between Radeon HD 6770 Green Edition and Radeon Pro Vega 20. We've got no test results to judge.
Be aware that Radeon HD 6770 Green Edition is a desktop graphics card while Radeon Pro Vega 20 is a mobile workstation one.
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