AMD Radeon RX 6800 XT vs NVIDIA RTX 5880 Ada Generation Comparison

AMD Radeon RX 6800 XT and NVIDIA RTX 5880 Ada Generation are both high-performance GPUs, but they serve fundamentally different roles. The RX 6800 XT is an end-of-life gaming card from the Radeon RX 6000 series, while the RTX 5880 Ada Generation is an active workstation GPU built on the Ada Lovelace architecture. Benchmark results show a near-tie in overall graphics scores, yet the two diverge sharply in compute and legacy API performance. The data indicates that the RX 6800 XT holds advantages in DirectX 11, DirectX 12, and 2D tests, whereas the RTX 5880 Ada dominates in OpenCL compute, DirectX 9, and DirectX 10. Both cards sit at the 85th percentile among all GPUs, with average benchmark scores of 48,477 for AMD and 45,972 for NVIDIA, a difference of about 5.2%.

The Verdict

The choice between these two cards comes down to workload priorities, strictly from the benchmark data. For gaming-oriented tasks using DirectX 12, the AMD Radeon RX 6800 XT is the clear pick—it posts a 42.9% higher score in Passmark DirectX 12 (100 vs 70). It also wins Passmark DirectX 11 by 15.8% (264 vs 228) and Passmark G2D by 32.6% (1030 vs 777). If your primary concern is modern gaming APIs and 2D desktop performance, the RX 6800 XT is the better performer in these specific tests.

For compute-heavy professional workloads, the NVIDIA RTX 5880 Ada Generation is the obvious choice. Its Geekbench OpenCL score of 326,898 crushes the AMD card's 171,304, a 47.6% deficit for the RX 6800 XT. The RTX 5880 also wins Passmark GPU Compute (14,208 vs 13,245, a 6.8% advantage) and Passmark DirectX 10 (167 vs 155, a 7.2% lead). Additionally, it leads in Passmark DirectX 9 by 20.9% (335 vs 265). The RTX 5880 wins 5 of the 8 head-to-head benchmarks, while the RX 6800 XT wins 3.

The aggregate scores tell a slightly different story. The RX 6800 XT has a higher average benchmark score (48,477 vs 45,972), but its nearest rivals include the Intel Arc A550M and NVIDIA GeForce RTX 5070 Ti, with deltas of -2.5% and -3% respectively. The RTX 5880 Ada's nearest rival is the NVIDIA RTX A2000, which is only 0.2% faster, and the Intel Arc A730M at 0.8% slower. This suggests the RX 6800 XT competes in a slightly faster tier on average, despite losing the majority of direct comparisons.

Architecture Differences

The architectural gap is substantial. The RX 6800 XT uses the Navi 21 chip on TSMC's 7 nm process, with 26,800 million transistors on a 520 mm² die, giving a transistor density of 51.5M per mm². It is based on RDNA 2.0 architecture from the Navi II generation. The RTX 5880 Ada uses the AD102 chip on TSMC's 5 nm process, packing 76,300 million transistors into a 609 mm² die, achieving 125.3M transistors per mm²—more than double the density. The Ada Lovelace architecture is from the Workstation Ada generation.

Memory configurations differ markedly. The RX 6800 XT has 16 GB of GDDR6 on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The RTX 5880 Ada offers 48 GB of GDDR6 on a 384-bit bus, with 864.0 GB/s of bandwidth—68.8% more bandwidth and three times the capacity. Clock speeds also vary: the RX 6800 XT runs at a 1825 MHz base and 2250 MHz boost, while the RTX 5880 Ada has a much lower 975 MHz base but a higher 2460 MHz boost. Memory clocks are 2000 MHz (16 Gbps effective) for AMD and 2250 MHz (18 Gbps effective) for NVIDIA.

Compute resources are heavily stacked toward NVIDIA. The RTX 5880 Ada has 14,080 shading units, 440 TMUs, 176 ROPs, 110 RT cores, and 440 tensor cores. The RX 6800 XT has 4,608 shading units, 288 TMUs, 128 ROPs, and 72 RT cores, with no tensor cores listed. This translates to 69.27 TFLOPS FP32 for NVIDIA versus 20.74 TFLOPS for AMD—a 3.3x advantage. The FP16 performance is identical to FP32 on the RTX 5880 (69.27 TFLOPS, 1:1 ratio), while the RX 6800 XT reaches 41.47 TFLOPS FP16 via a 2:1 ratio.

Power and physical specs also differ. The RX 6800 XT has a 300 W TDP with 2x 8-pin connectors and a 700 W suggested PSU. The RTX 5880 Ada has a 285 W TDP with a single 16-pin connector and a 600 W suggested PSU. Both are dual-slot cards with PCIe 4.0 x16 interfaces, and both are 267 mm long. The RX 6800 XT is slightly taller at 120 mm versus 112 mm, and it includes a USB Type-C output alongside 1x HDMI 2.1 and 2x DisplayPort 1.4a, while the RTX 5880 Ada has 4x DisplayPort 1.4a.

Where Each One Wins

The RX 6800 XT wins decisively in DirectX 11 and DirectX 12 tests. The 15.8% lead in DirectX 11 (264 vs 228) and 42.9% lead in DirectX 12 (100 vs 70) indicate stronger performance in modern gaming APIs. Its Passmark G2D score of 1030 versus 777 (32.6% higher) suggests better 2D rendering and desktop compositing performance. These wins point to gaming and general graphics use cases where DirectX 11/12 titles are dominant.

The RTX 5880 Ada Generation wins in compute and legacy DirectX tests. The 47.6% advantage in Geekbench OpenCL (326,898 vs 171,304) is the largest margin in any benchmark, indicating massive compute throughput advantage—consistent with its 69.27 TFLOPS FP32 versus 20.74 TFLOPS for AMD. It also wins Passmark GPU Compute (14,208 vs 13,245, 6.8% ahead), DirectX 9 (335 vs 265, 20.9% ahead), and DirectX 10 (167 vs 155, 7.2% ahead). The DirectX 9 and 10 wins suggest better compatibility with older software, while the compute wins point to professional applications like rendering, simulation, and scientific workloads.

The only near-tie is Passmark G3D, where the RTX 5880 Ada edges out the RX 6800 XT by just 0.5% (25,096 vs 24,980). This indicates that raw 3D rendering performance is essentially equivalent between the two, despite the massive compute gap. The RTX 5880 Ada also has 48 GB of VRAM versus 16 GB, which is critical for large datasets, but the benchmark data does not directly test memory capacity.

FAQ

Q: Which card has better overall compute performance?

A: The NVIDIA RTX 5880 Ada Generation wins Geekbench OpenCL by 47.6% (326,898 vs 171,304) and Passmark GPU Compute by 6.8% (14,208 vs 13,245). Its FP32 throughput of 69.27 TFLOPS is 3.3x higher than the RX 6800 XT's 20.74 TFLOPS.

Q: Which card performs better in DirectX 12 gaming benchmarks?

A: The AMD Radeon RX 6800 XT wins Passmark DirectX 12 with a score of 100 versus 70 for the RTX 5880 Ada, a 42.9% advantage. It also wins DirectX 11 by 15.8% (264 vs 228).

Q: What is the memory capacity difference?

A: The RTX 5880 Ada has 48 GB of GDDR6 on a 384-bit bus with 864.0 GB/s bandwidth. The RX 6800 XT has 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth.

Q: How close are the overall 3D graphics scores?

A: In Passmark G3D, the RTX 5880 Ada scores 25,096 versus 24,980 for the RX 6800 XT—a mere 0.5% difference. Both cards sit at the 85th percentile among all GPUs.

Q: Which card is better for legacy DirectX 9 applications?

A: The RTX 5880 Ada wins Passmark DirectX 9 with 335 points versus 265, a 20.9% lead. It also wins DirectX 10 by 7.2% (167 vs 155).

Q: What are the launch statuses and dates?

A: The RX 6800 XT is end-of-life, released on 2020-10-27 with a launch MSRP of 649 USD. The RTX 5880 Ada is active, released on 2024-01-04, with no launch MSRP listed.

Head-to-Head Benchmarks

The largest single win for the RTX 5880 Ada is Geekbench OpenCL. Its score of 326,898 is 47.6% higher than the RX 6800 XT's 171,304. This massive delta reflects the architecture's compute focus and is the clearest differentiator in the entire benchmark suite. The RX 6800 XT cannot compete in this metric, which heavily favors NVIDIA's 69.27 TFLOPS FP32 output.

The largest win for the RX 6800 XT is Passmark DirectX 12, where it scores 100 versus 70 for the RTX 5880 Ada—a 42.9% advantage. This is a surprising result given the RTX 5880 Ada's newer architecture, but the data shows AMD's card is far stronger in this modern API. The RX 6800 XT also wins Passmark G2D by 32.6% (1030 vs 777), indicating superior 2D performance.

In DirectX 11, the RX 6800 XT wins by 15.8% (264 vs 228), while in DirectX 9 the RTX 5880 Ada wins by 20.9% (335 vs 265). The DirectX 10 result is closer, with the RTX 5880 Ada ahead by 7.2% (167 vs 155). Passmark GPU Compute shows a modest 6.8% win for NVIDIA (14,208 vs 13,245), and Passmark G3D is essentially a tie at 0.5% in NVIDIA's favor (25,096 vs 24,980).

Overall, the RTX 5880 Ada wins 5 benchmarks to the RX 6800 XT's 3. However, the RX 6800 XT's average benchmark score of 48,477 is higher than the RTX 5880 Ada's 45,972, indicating that its wins are concentrated in higher-weighted tests or that its loss margins are smaller in aggregate. The nearest rivals data confirms the RX 6800 XT sits alongside the NVIDIA GeForce RTX 5070 Ti (delta -3%) and Intel Arc A550M (delta -2.5%), while the RTX 5880 Ada competes with the NVIDIA RTX A2000 (delta -0.2%) and AMD Radeon Pro 5500 XT (delta 1.3%).

Specification Differences

The two cards differ in nearly every major specification. The RX 6800 XT uses a 7 nm process, while the RTX 5880 Ada uses 5 nm. Transistor counts are 26,800 million versus 76,300 million, with die sizes of 520 mm² and 609 mm² respectively. Transistor density is 51.5M per mm² for AMD and 125.3M per mm² for NVIDIA.

Clock speeds show different strategies: the RX 6800 XT has a 1825 MHz base and 2250 MHz boost, while the RTX 5880 Ada has a 975 MHz base and 2460 MHz boost. Memory configurations are 16 GB GDDR6 on a 256-bit bus for AMD versus 48 GB GDDR6 on a 384-bit bus for NVIDIA. Bandwidth is 512.0 GB/s versus 864.0 GB/s.

Compute resources differ dramatically: 4,608 shading units, 288 TMUs, 128 ROPs, and 72 RT cores for AMD versus 14,080 shading units, 440 TMUs, 176 ROPs, 110 RT cores, and 440 tensor cores for NVIDIA. FP32 performance is 20.74 TFLOPS versus 69.27 TFLOPS, and FP16 is 41.47 TFLOPS (2:1) versus 69.27 TFLOPS (1:1).

Power requirements are 300 W TDP with 2x 8-pin connectors and a 700 W suggested PSU for AMD, versus 285 W TDP with 1x 16-pin connector and a 600 W suggested PSU for NVIDIA. Display outputs are 1x HDMI 2.1, 2x DisplayPort 1.4a, and 1x USB Type-C for AMD, versus 4x DisplayPort 1.4a for NVIDIA. Dimensions are similar in length (267 mm both), but the RX 6800 XT is 120 mm tall and 50 mm wide, while the RTX 5880 Ada is 112 mm tall with no width listed. The RX 6800 XT is end-of-life with a launch MSRP of 649 USD, while the RTX 5880 Ada is active with no MSRP listed.