Radeon RX 6600 XT vs RX 580 OEM
General info
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | 79 |
| Place by popularity | not in top-100 | 51 |
| Value for money | no data | 47.39 |
| Architecture | GCN 4.0 (2016−2020) | Navi / RDNA2 (2020−2022) |
| GPU code name | Ellesmere | Navi 23 |
| Market segment | Desktop | Desktop |
| Release date | 29 June 2016 (7 years ago) | 30 July 2021 (2 years ago) |
| Launch price (MSRP) | $229 | $379 |
| Current price | $228 (1x MSRP) | $283 (0.7x MSRP) |
Value for money
Performance to price ratio. The higher, the better.
Technical specs
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 2304 | 2048 |
| Core clock speed | 1120 MHz | 1968 MHz |
| Boost clock speed | 1266 MHz | 2589 MHz |
| Number of transistors | 5,700 million | 11,060 million |
| Manufacturing process technology | 14 nm | 7 nm |
| Power consumption (TDP) | 150 Watt | 160 (TGP) Watt |
| Texture fill rate | 182.3 | 331.4 |
| Floating-point performance | 5,834 gflops | no data |
Size and 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 4.0 x8 |
| Length | 241 mm | 190 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin | 1x 8-pin |
Memory
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 | GDDR6 |
| Maximum RAM amount | 8 GB | 8 GB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 8000 MHz | 16000 MHz |
| Memory bandwidth | 256.0 GB/s | 256.0 GB/s |
| Shared memory | no data | - |
Video outputs and ports
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 1x HDMI, 3x DisplayPort | 1x HDMI, 2x DisplayPort |
| HDMI | + | + |
API support
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12.0 Ultimate (12_2) |
| Shader Model | 6.4 | 6.5 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.2.131 | 1.2 |
Advantages and disadvantages
| Recency | 29 June 2016 | 30 July 2021 |
| Cost | $229 | $379 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 150 Watt | 160 Watt |
We couldn't decide between Radeon RX 580 OEM and Radeon RX 6600 XT. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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