AMD Radeon RX 580 vs AMD Radeon RX 7900 XT Comparison

The AMD Radeon RX 7900 XT and AMD Radeon RX 580 represent two very different eras of AMD GPU design, separated by a full architectural generation and a significant process node leap. The benchmark data shows a decisive overall victory for the newer card, with the RX 7900 XT winning 9 of the 10 head-to-head comparisons. However, the single loss for the RX 7900 XT is a stark anomaly that highlights the importance of workload-specific testing. The average benchmark score for the RX 7900 XT is 13,745, placing it in the 55th percentile of all GPUs, while the RX 580 averages 12,928, sitting in the 53rd percentile. These aggregate scores are closer than the individual test results suggest, but the distribution of wins reveals where each card excels.

Head-to-Head Benchmarks

The most dramatic disparity appears in the 3DMark Steel Nomad DX12 test, where the RX 7900 XT scores 5,623 against the RX 580's 1,005. This represents a delta of 459.5%, meaning the newer card is over five times faster in this modern DirectX 12 workload. This is the largest single-test margin in the entire comparison and underscores the architectural gulf between the two. Similarly, in Passmark's DirectX 11 test, the RX 7900 XT achieves 340 points versus the RX 580's 60, a 466.7% advantage. The RX 7900 XT also dominates in Passmark's GPU Compute test with a score of 16,828 compared to 3,488, yielding a 382.5% lead.

The RX 7900 XT's superiority extends to legacy DirectX APIs as well. In Passmark's DirectX 10 test, it scores 158 against 46, a 243.5% delta. The DirectX 9 test shows a 159.7% lead (322 vs. 124), and even the DirectX 12 test, which is less lopsided than Steel Nomad, shows a 155.8% advantage (110 vs. 43). In the comprehensive Passmark G3D test, the RX 7900 XT scores 29,009 versus 8,813, a 229.2% improvement. The 2D graphics test also favors the newer card, with a 60.2% delta (1,232 vs. 769). In Vulkan, the RX 7900 XT posts 71,068 points versus 45,173 for the RX 580, a 57.3% lead.

The single exception is the Geekbench OpenCL test, where the RX 580 scores 37,453, which is 65.9% higher than the RX 7900 XT's 12,756. This is a remarkable reversal. The RX 580 also has a Geekbench Metal score of 45,235 and a Geekbench Vulkan score of 45,173, while the RX 7900 XT has no Metal score listed. This OpenCL result is the only data point where the older architecture wins, and it is a significant outlier given the RX 7900 XT's massive leads elsewhere. This suggests the OpenCL benchmark may favor the RX 580's specific compute characteristics or that the RX 7900 XT's drivers are not optimized for this particular test.

FAQ

Q: Which card wins the overall benchmark comparison?

A: The AMD Radeon RX 7900 XT wins 9 out of 10 head-to-head benchmarks. Its only loss is in the Geekbench OpenCL test, where the RX 580 leads by 65.9%. The RX 7900 XT's average benchmark score is 13,745, which is 6.3% higher than the RX 580's 12,928.

Q: How large is the performance gap in modern DirectX 12 workloads?

A: In the 3DMark Steel Nomad DX12 test, the RX 7900 XT scores 5,623 versus the RX 580's 1,005, a delta of 459.5%. In the Passmark DirectX 12 test, the RX 7900 XT leads by 155.8% with a score of 110 versus 43. The RX 7900 XT also supports DirectX 12 Ultimate (12_2), while the RX 580 only supports DirectX 12 (12_0).

Q: Does the RX 580 have any advantage in compute performance?

A: Yes, in the Geekbench OpenCL test, the RX 580 scores 37,453, which is 65.9% higher than the RX 7900 XT's 12,756. However, in the Passmark GPU Compute test, the RX 7900 XT wins decisively with a score of 16,828 versus 3,488, a 382.5% advantage. The results are inconsistent across different compute benchmarks.

Q: What are the percentile rankings for each card?

A: The RX 7900 XT is in the 55th percentile of all GPUs, while the RX 580 is in the 53rd percentile. This indicates that despite the RX 7900 XT's large wins in most tests, both cards sit in a similar overall performance tier when compared to the entire GPU market.

Q: How do the cards compare in Vulkan performance?

A: The RX 7900 XT scores 71,068 in the Geekbench Vulkan test, which is 57.3% higher than the RX 580's 45,173. The RX 7900 XT supports Vulkan 1.4, while the RX 580 supports Vulkan 1.3.

Q: Are both cards still in production?

A: No, both cards are listed as "End-of-life" in their production status. The RX 7900 XT was released on 2022-11-02, and the RX 580 was released on 2017-04-17.

Architecture Differences

The fundamental architectural split is between RDNA 3.0 and GCN 4.0. The RX 7900 XT uses the Navi 31 chip on a 5 nm process from TSMC, while the RX 580 uses the Polaris 20 chip on a 14 nm process from GlobalFoundries. This process node difference is immense: the RX 7900 XT packs 57,700 million transistors into a 529 mm² die, achieving a transistor density of 109.1M per mm². The RX 580 has only 5,700 million transistors on a 232 mm² die, giving it a density of 24.6M per mm². The RX 7900 XT has over ten times the transistor count.

The compute resources scale accordingly. The RX 7900 XT has 5,376 shading units, 336 TMUs, and 192 ROPs, while the RX 580 has 2,304 shading units, 144 TMUs, and only 32 ROPs. The RX 7900 XT also includes 84 ray tracing cores, a feature entirely absent from the RX 580. This explains the RX 7900 XT's pixel rate of 459.6 GPixel/s versus the RX 580's 42.88 GPixel/s, and its texture rate of 804.4 GTexel/s versus 193.0 GTexel/s. The FP32 throughput is 51.48 TFLOPS for the RX 7900 XT versus 6.175 TFLOPS for the RX 580, an 8.3x difference. The RX 7900 XT also has FP16 performance of 103.0 TFLOPS (2:1), while the RX 580's FP16 is equal to its FP32 at 6.175 TFLOPS (1:1).

Memory architecture also diverges sharply. The RX 7900 XT has 20 GB of GDDR6 memory on a 320-bit bus, delivering 800.0 GB/s of bandwidth. The RX 580 has 8 GB of GDDR5 memory on a 256-bit bus, providing 256.0 GB/s. The clock speeds differ as well: the RX 7900 XT has a base clock of 1387 MHz, a boost of 2394 MHz, and a game clock of 2025 MHz, with memory at 2500 MHz (20 Gbps effective). The RX 580 has a base of 1257 MHz and a boost of 1340 MHz, with memory at 2000 MHz (8 Gbps effective).

The Verdict

The data is unambiguous for gaming and general GPU workloads: the RX 7900 XT is the superior card. Its wins in every DirectX test, Vulkan, and Passmark G3D are by margins ranging from 57.3% to 466.7%. The only scenario where the RX 580 wins is the Geekbench OpenCL test, and even then, the RX 7900 XT counters with a 382.5% win in Passmark GPU Compute. Users needing maximum performance in modern DirectX 12 titles, ray tracing workloads, or high-resolution texture-heavy applications should choose the RX 7900 XT. Its 20 GB memory capacity and 800.0 GB/s bandwidth are far more suited to current and future game requirements than the RX 580's 8 GB and 256.0 GB/s.

The RX 580 is not without merit, but its advantages are narrow. Its win in Geekbench OpenCL suggests specific compute scenarios might favor it, though this is contradicted by the Passmark GPU Compute result. For users running legacy software that relies on OpenCL performance, the RX 580 might be a viable option. However, the RX 7900 XT's support for newer APIs like DirectX 12 Ultimate and Vulkan 1.4, along with its ray tracing cores, makes it the forward-looking choice. The RX 580's 53rd percentile ranking versus the RX 7900 XT's 55th percentile shows the newer card is also better positioned relative to the entire GPU market.

Specification Differences

The two cards differ in nearly every measurable specification. The process node is 5 nm for the RX 7900 XT versus 14 nm for the RX 580, and the foundries are TSMC and GlobalFoundries, respectively. The RX 7900 XT has 57,700 million transistors on a 529 mm² die, while the RX 580 has 5,700 million on 232 mm². The RX 7900 XT's base clock is 1387 MHz with a boost of 2394 MHz, while the RX 580 runs at 1257 MHz base and 1340 MHz boost. The RX 7900 XT has a game clock of 2025 MHz; the RX 580 has none listed.

Memory specifications are starkly different: the RX 7900 XT has 20 GB of GDDR6 on a 320-bit bus with 800.0 GB/s bandwidth, while the RX 580 has 8 GB of GDDR5 on a 256-bit bus with 256.0 GB/s. The RX 7900 XT's memory clock is 2500 MHz (20 Gbps effective), versus the RX 580's 2000 MHz (8 Gbps effective). The shading units are 5,376 versus 2,304, TMUs are 336 versus 144, and ROPs are 192 versus 32. The RX 7900 XT has 84 ray tracing cores; the RX 580 has none. Pixel rates are 459.6 GPixel/s versus 42.88 GPixel/s, and texture rates are 804.4 GTexel/s versus 193.0 GTexel/s. FP32 is 51.48 TFLOPS versus 6.175 TFLOPS, and FP16 is 103.0 TFLOPS (2:1) versus 6.175 TFLOPS (1:1).

The power delivery requirements also differ: the RX 7900 XT has a TDP of 300 W with two 8-pin connectors and a suggested 700 W PSU, while the RX 580 has a TDP of 185 W with one 8-pin connector and a suggested 450 W PSU. The bus interface is PCIe 4.0 x16 for the RX 7900 XT versus PCIe 3.0 x16 for the RX 580. Display outputs vary, with the RX 7900 XT offering 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C, while the RX 580 has 1x HDMI 2.0b and 3x DisplayPort 1.4a. The RX 7900 XT measures 276 mm in length, 110 mm in height, and 51 mm in width, while the RX 580 is 241 mm long with no listed height or width. The RX 580 is also a dual-slot card, as is the RX 7900 XT.