AMD Radeon RX 580 2048SP vs AMD Radeon RX 7700 XT Comparison

The AMD Radeon RX 580 2048SP and the AMD Radeon RX 7700 XT represent two distinct eras of GPU design, separated by five years of architectural evolution. The data shows a complete sweep for the newer RX 7700 XT across all shared benchmark tests, with the most dramatic gap appearing in synthetic DirectX 12 workloads. While the RX 580 2048SP holds a respectable 68th percentile ranking among all GPUs, the RX 7700 XT sits at a similar 67th percentile, yet their average benchmark scores tell different stories: the older card averages 23,061 points, while the newer card averages 22,549, a slight overall deficit that masks the individual test results. The head-to-head results are unambiguous, with the RX 7700 XT winning all three comparative tests by margins ranging from roughly 17% to nearly 79%.

Head-to-Head Benchmarks

The most striking difference appears in the 3DMark Steel Nomad DX12 test, where the RX 7700 XT scores 3,316 points against the RX 580 2048SP's 849 points. This represents a 74.4% delta in favor of the newer card, meaning the RX 7700 XT delivers approximately four times the performance in this modern DirectX 12 workload. This test is particularly demanding on geometry processing and memory bandwidth, both areas where the architectural gap becomes most apparent.

The Geekbench OpenCL compute benchmark shows an even larger relative gap. The RX 7700 XT posts 138,383 points, while the RX 580 2048SP manages only 29,668 points, a 78.6% difference. This test exercises raw compute throughput across the entire GPU, and the results align with the theoretical specifications: the RX 7700 XT delivers 35.17 TFLOPS of FP32 performance versus 5.259 TFLOPS for the RX 580 2048SP, a roughly 6.7x advantage in raw floating-point capability.

The closest contest appears in Geekbench Vulkan, where the RX 7700 XT scores 46,443 versus 38,666 for the RX 580 2048SP, a 16.7% delta. Vulkan's lower-level API overhead tends to favor the newer architecture's more efficient command processing, but the narrower margin suggests the RX 580 2048SP's GCN architecture still handles Vulkan workloads relatively well compared to its DirectX 12 performance. The RX 580 2048SP's 68th percentile ranking versus the RX 7700 XT's 67th percentile reflects this mixed picture, where the older card's strong Vulkan showing partially compensates for its weaknesses elsewhere.

Where Each One Wins

The RX 7700 XT wins decisively in every head-to-head benchmark category, but the nature of those wins varies. In 3DMark Steel Nomad DX12, the advantage comes from the RDNA 3.0 architecture's redesigned compute units and dedicated ray tracing hardware, which allows it to handle modern game workloads that rely on DX12 features. The 54 RT cores on the RX 7700 XT provide hardware-accelerated ray tracing that the RX 580 2048SP completely lacks, explaining the massive delta in this test.

For OpenCL compute workloads, the RX 7700 XT's advantage stems from its sheer scale: 3,456 shading units versus 2,048, 216 texture mapping units versus 128, and 96 ROPs versus 32. The newer card also benefits from 12 GB of GDDR6 memory running at 18 Gbps effective, delivering 432.0 GB/s of bandwidth compared to the RX 580 2048SP's 4 GB of GDDR5 at 7 Gbps effective and 224.0 GB/s. This memory bandwidth advantage becomes critical in compute tasks that frequently access large datasets.

The RX 580 2048SP's only competitive showing is in Geekbench Vulkan, where its 16.7% deficit represents its best relative performance. This suggests that for Vulkan-based workloads, particularly older games or applications optimized for GCN architecture, the RX 580 2048SP remains serviceable. Its 1:1 FP16 to FP32 ratio also means it doesn't suffer the half-rate FP16 penalties seen in some architectures, though this does not translate into a benchmark win.

Architecture Differences

The two cards represent fundamentally different architectural approaches. The RX 580 2048SP uses GCN 4.0 on the Polaris 20 chip, manufactured on GlobalFoundries' 14 nm process with 5,700 million transistors on a 232 mm² die. The RX 7700 XT uses RDNA 3.0 on the Navi 32 chip, built on TSMC's 5 nm process with 28,100 million transistors on a 346 mm² die. This process shrink enables a transistor density of 81.2 million transistors per mm² for the newer card, versus just 24.6 million for the older one, a 3.3x density improvement.

Clock speeds tell a similar story of generational progress. The RX 580 2048SP runs at a base clock of 1168 MHz and boosts to 1284 MHz, while the RX 7700 XT operates at 1435 MHz base, 2171 MHz game clock, and 2544 MHz boost. The memory subsystems differ equally dramatically: the RX 580 2048SP uses 4 GB of GDDR5 on a 256-bit bus, while the RX 7700 XT uses 12 GB of GDDR6 on a 192-bit bus. Despite the narrower bus, the newer card achieves nearly double the bandwidth due to faster memory clocks.

Feature support also diverges. The RX 7700 XT supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the RX 580 2048SP is limited to DirectX 12 (12_0) and Vulkan 1.3. The newer card adds 54 ray tracing cores and a USB Type-C display output, alongside HDMI 2.1a and two DisplayPort 2.1 connections. The older card offers one DVI, one HDMI 2.0b, and three DisplayPort 1.4a outputs. The RX 7700 XT also uses PCIe 4.0 x16 versus PCIe 3.0 x16, though both cards have sufficient bandwidth for their respective performance levels.

FAQ

Q: Which card has better raw compute performance?

A: The RX 7700 XT decisively wins with 35.17 TFLOPS of FP32 performance versus 5.259 TFLOPS for the RX 580 2048SP, a difference reflected in the 78.6% Geekbench OpenCL score gap.

Q: How much faster is the RX 7700 XT in DirectX 12 gaming?

A: In 3DMark Steel Nomad DX12, the RX 7700 XT scores 3,316 versus 849 for the RX 580 2048SP, representing a 74.4% advantage in this modern API workload.

Q: Does the RX 580 2048SP have any competitive advantage?

A: Its closest result is in Geekbench Vulkan, where it trails by only 16.7%, suggesting it remains viable for Vulkan-based titles despite being significantly slower overall.

Q: What memory capacities do these cards offer?

A: The RX 580 2048SP has 4 GB of GDDR5, while the RX 7700 XT has 12 GB of GDDR6. The newer card also provides 432.0 GB/s bandwidth versus 224.0 GB/s.

Q: Are there power consumption differences?

A: The RX 580 2048SP carries a 150 W TDP with a 450 W suggested PSU, while the RX 7700 XT has a 245 W TDP and requires a 550 W suggested PSU. The RX 7700 XT needs two 8-pin connectors versus one for the older card.

Q: Which card supports newer display technologies?

A: The RX 7700 XT supports HDMI 2.1a and DisplayPort 2.1, plus a USB Type-C output. The RX 580 2048SP offers HDMI 2.0b and DisplayPort 1.4a, along with a legacy DVI port.

The Verdict

The data presents a clear hierarchy. The RX 7700 XT outperforms the RX 580 2048SP in every head-to-head benchmark, with margins ranging from 16.7% in Vulkan to 78.6% in OpenCL. The RX 580 2048SP is marked as end-of-life production status, released in October 2018, while the RX 7700 XT remains active with a September 2023 release date. For any modern workload, particularly DirectX 12 games or compute-heavy applications, the RX 7700 XT is the only rational choice from this comparison.

However, the RX 580 2048SP's 68th percentile ranking versus the RX 7700 XT's 67th percentile shows that the older card still holds up in the broader GPU landscape, particularly for Vulkan-based workloads where it trails by a relatively modest margin. Its lower TDP of 150 W versus 245 W makes it easier to integrate into existing systems without PSU upgrades, though its 4 GB memory capacity limits its usefulness for modern high-resolution textures.

The RX 7700 XT's launch MSRP of 449 USD positions it as a mid-range card, and its performance data justifies that positioning. For users targeting 1440p gaming or compute workloads with ray tracing requirements, the RX 7700 XT's 54 RT cores and 12 GB memory make it substantially more future-proof. The RX 580 2048SP remains a legacy product suited for budget-conscious builds focused on older games or Vulkan-native applications where its performance deficit narrows.

Specification Differences

| Specification | AMD Radeon RX 580 2048SP | AMD Radeon RX 7700 XT |

|---|---|---|

| Architecture | GCN 4.0 | RDNA 3.0 |

| Process Node | 14 nm | 5 nm |

| Transistors | 5,700 million | 28,100 million |

| Die Size | 232 mm² | 346 mm² |

| Base Clock | 1168 MHz | 1435 MHz |

| Boost Clock | 1284 MHz | 2544 MHz |

| Memory | 4 GB GDDR5 | 12 GB GDDR6 |

| Memory Bus | 256 bit | 192 bit |

| Memory Bandwidth | 224.0 GB/s | 432.0 GB/s |

| Shading Units | 2048 | 3456 |

| TMUs | 128 | 216 |

| ROPs | 32 | 96 |

| RT Cores | N/A | 54 |

| FP32 Performance | 5.259 TFLOPS | 35.17 TFLOPS |

| TDP | 150 W | 245 W |

| Power Connectors | 1x 8-pin | 2x 8-pin |

| Suggested PSU | 450 W | 550 W |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| DirectX Support | 12 (12_0) | 12 Ultimate (12_2) |

| Vulkan Support | 1.3 | 1.4 |

| Display Outputs | 1x DVI, 1x HDMI 2.0b, 3x DisplayPort 1.4a | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C |

| Dimensions | 241 mm (9.5 inches) | 267 mm (10.5 inches) |

| Production Status | End-of-life | Active |