Radeon R9 255 OEM vs VII
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 128 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 19.55 | no data |
| Power efficiency | 10.13 | no data |
| Architecture | GCN 5.1 (2018−2022) | GCN 1.0 (2012−2020) |
| GPU code name | Vega 20 | Cape Verde |
| Market segment | Desktop | Desktop |
| Release date | 7 February 2019 (6 years ago) | 21 December 2013 (12 years ago) |
| Launch price (MSRP) | $699 | no data |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
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 | 3840 | 512 |
| Core clock speed | 1400 MHz | 900 MHz |
| Boost clock speed | 1750 MHz | 930 MHz |
| Number of transistors | 13,230 million | 1,500 million |
| Manufacturing process technology | 7 nm | 28 nm |
| Power consumption (TDP) | 295 Watt | 65 Watt |
| Texture fill rate | 420.0 | 29.76 |
| Floating-point processing power | 13.44 TFLOPS | 0.9523 TFLOPS |
| ROPs | 64 | 16 |
| TMUs | 240 | 32 |
| L1 Cache | 960 KB | 128 KB |
| L2 Cache | 4 MB | 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).
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | 280 mm | no data |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 2x 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 | HBM2 | GDDR5 |
| Maximum RAM amount | 16 GB | 2 GB |
| Memory bus width | 4096 Bit | 128 Bit |
| Memory clock speed | 1000 MHz | 1150 MHz |
| Memory bandwidth | 1024 GB/s | 73.6 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 | 1x HDMI 2.0b, 3x DisplayPort 1.4a | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 (11_1) |
| Shader Model | 6.7 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 1.2 |
| Vulkan | 1.3 | 1.2.131 |
Pros & cons summary
| Recency | 7 February 2019 | 21 December 2013 |
| Maximum RAM amount | 16 GB | 2 GB |
| Chip lithography | 7 nm | 28 nm |
| Power consumption (TDP) | 295 Watt | 65 Watt |
Radeon VII has an age advantage of 5 years, a 700% higher maximum VRAM amount, and a 300% more advanced lithography process.
R9 255 OEM, on the other hand, has 353.8% lower power consumption.
We couldn't decide between Radeon VII and Radeon R9 255 OEM. We've got no test results to judge.
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