Radeon RX 550X 640SP vs HD 8990 OEM
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) | GCN 4.0 (2016−2020) |
| GPU code name | Malta | Baffin |
| Market segment | Desktop | Desktop |
| Release date | 24 April 2013 (12 years ago) | 11 April 2018 (7 years ago) |
| Launch price (MSRP) | $999 | no data |
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 | 2048 ×2 | 640 |
| Core clock speed | 950 MHz | 1019 MHz |
| Boost clock speed | 1000 MHz | 1071 MHz |
| Number of transistors | 4,313 million | 3,000 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Power consumption (TDP) | 375 Watt | 60 Watt |
| Texture fill rate | 128.0 ×2 | 42.84 |
| Floating-point processing power | 4.096 TFLOPS ×2 | 1.371 TFLOPS |
| ROPs | 32 ×2 | 16 |
| TMUs | 128 ×2 | 40 |
| L1 Cache | 512 KB | 160 KB |
| L2 Cache | 768 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).
| Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Length | 307 mm | 145 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 2x 8-pin | None |
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 | 3 GB ×2 | 2 GB |
| Memory bus width | 384 Bit ×2 | 128 Bit |
| Memory clock speed | 1500 MHz | 1500 MHz |
| Memory bandwidth | 288.0 GB/s ×2 | 96 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 DVI, 4x mini-DisplayPort | 1x DVI, 1x HDMI, 1x DisplayPort |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 (12_0) |
| Shader Model | 5.1 | 6.4 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.2.131 | 1.2.131 |
Pros & cons summary
| Recency | 24 April 2013 | 11 April 2018 |
| Maximum RAM amount | 3 GB | 2 GB |
| Chip lithography | 28 nm | 14 nm |
| Power consumption (TDP) | 375 Watt | 60 Watt |
HD 8990 OEM has a 50% higher maximum VRAM amount.
RX 550X 640SP, on the other hand, has an age advantage of 4 years, a 100% more advanced lithography process, and 525% lower power consumption.
We couldn't decide between Radeon HD 8990 OEM and Radeon RX 550X 640SP. We've got no test results to judge.
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