AMD Radeon RX 7900 XT vs NVIDIA RTX A2000 Mobile Comparison

The NVIDIA RTX A2000 Mobile and AMD Radeon RX 7900 XT occupy opposite ends of the hardware spectrum, yet their average benchmark scores are nearly identical. The data shows a 0.6% difference in average score favoring the RTX A2000 Mobile, with the RX 7900 XT trailing by 0.5% in its own rival list. This statistical tie, however, masks a stark divergence in how each card performs across individual workloads. The benchmark results reveal a split personality: the NVIDIA card dominates a single compute API, while the AMD card wins every other test by substantial margins.

Head-to-Head Benchmarks

The most striking result in the comparison is the Geekbench OpenCL test, where the NVIDIA RTX A2000 Mobile scores 56,518 against the RX 7900 XT's 12,756. That is a 343.1% advantage for NVIDIA, an outlier so large it distorts the average score comparison. No other test comes close to this margin. The RX 7900 XT's Vulkan score of 71,068 versus 53,146 for the RTX A2000 Mobile shows a 25.2% deficit for NVIDIA, but even that is dwarfed by the OpenCL gap.

Across the Passmark suite, the RX 7900 XT is consistently dominant. In DirectX 11, it scores 340 versus 68, an 80% lead. DirectX 10 shows a 63.9% margin (158 vs 57), DirectX 9 a 64.3% margin (322 vs 115), and DirectX 12 a 57.3% margin (110 vs 47). The pattern is clear: the AMD card is roughly two to four times faster in every legacy and modern DirectX workload. The gap narrows somewhat in 2D graphics, where the RX 7900 XT's 1,232 score beats 491 by 60.1%, but it widens again in 3D graphics.

The 3D Mark Steel Nomad DX12 test, exclusive to the RX 7900 XT, records a score of 5,623, though no direct comparison is available. The Passmark G3D score of 29,009 for AMD versus 9,611 for NVIDIA represents a 66.9% difference. Compute workloads show a similar trend: the RX 7900 XT scores 16,828 in Passmark GPU Compute, while the RTX A2000 Mobile manages only 4,334, a 74.2% deficit. Out of nine head-to-head benchmarks, NVIDIA wins exactly one; AMD wins eight.

The Verdict

The data presents a clear split based on workload priorities. The RTX A2000 Mobile is the correct choice for anyone whose primary workload relies on OpenCL compute, as its 343.1% lead in that specific test is overwhelming. The average benchmark scores of both cards are nearly tied — 13,821 for NVIDIA versus 13,745 for AMD — but that average is misleading. The RX 7900 XT wins every DirectX test, every graphics test, and the compute test outside of OpenCL. For general-purpose gaming, 3D rendering, or any DirectX-based application, the RX 7900 XT is the superior part by a wide margin.

The percentile ranking places both cards at the 55th percentile of all GPUs, but this tells only part of the story. Benchmark results indicate that the RX 7900 XT delivers more than triple the performance in most tests, while the RTX A2000 Mobile only wins in a single API. The RX 7900 XT also carries a launch MSRP of 899 USD, which can be stated once for reference. Users should pick the RTX A2000 Mobile only if their software specifically leverages OpenCL; otherwise, the RX 7900 XT is the data-backed winner.

Architecture Differences

The two GPUs come from fundamentally different design philosophies. The RTX A2000 Mobile uses the GA107 chip on NVIDIA's Ampere architecture, fabricated on an 8 nm process at Samsung. The RX 7900 XT uses the Navi 31 chip with AMD's RDNA 3.0 architecture, built on a 5 nm process at TSMC. The manufacturing difference is significant: AMD's node is denser, with 109.1M transistors per mm² versus 43.5M for NVIDIA. Total transistor counts differ enormously — 57,700 million for AMD against 8,700 million for NVIDIA — and the die sizes follow suit at 529 mm² versus 200 mm².

Architecturally, the RX 7900 XT leverages a chiplet design with its "Plum Bonito" codename, while the RTX A2000 Mobile is a monolithic die. The RDNA 3.0 architecture uses a 2:1 FP16 ratio, delivering 103.0 TFLOPS of half-precision compute against 51.48 TFLOPS FP32. The Ampere chip offers FP16 at a 1:1 ratio, meaning both FP32 and FP16 peak at 8.637 TFLOPS. NVIDIA includes 80 tensor cores and 20 ray tracing cores, while AMD lists 84 ray tracing cores and no tensor core count. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical.

The memory subsystem differs in capacity and bandwidth, but the architectural split is more telling: NVIDIA pairs a small die with a small memory bus, while AMD pairs a large die with a wide bus and high-density process. The transistor density advantage (109.1M vs 43.5M per mm²) explains how AMD fits 57,700 million transistors into a die only 2.6 times larger. This architectural gap directly influences the benchmark outcomes, where AMD's wider execution resources dominate throughput-heavy tests.

Specification Differences

The specification sheets diverge on nearly every measurable field. The RTX A2000 Mobile has 2,560 shading units, 80 texture mapping units, and 48 ROPs. The RX 7900 XT has 5,376 shading units, 336 TMUs, and 192 ROPs — roughly double, quadruple, and quadruple the counts, respectively. Clock speeds also favor AMD: base clocks are 1,215 MHz for NVIDIA and 1,387 MHz for AMD, with boost clocks of 1,687 MHz versus 2,394 MHz. The RX 7900 XT also lists a game clock of 2,025 MHz, a figure NVIDIA does not provide.

Memory is a major separator. The RTX A2000 Mobile offers 4 GB of GDDR6 on a 128-bit bus, yielding 192.0 GB/s bandwidth. The RX 7900 XT provides 20 GB of GDDR6 on a 320-bit bus, delivering 800.0 GB/s. Effective memory speeds are 12 Gbps versus 20 Gbps. Pixel and texture rates follow suit: 80.98 GPixel/s and 135.0 GTexel/s for NVIDIA, against 459.6 GPixel/s and 804.4 GTexel/s for AMD. FP32 compute is 8.637 TFLOPS versus 51.48 TFLOPS.

The power envelope shows the trade-off: the RTX A2000 Mobile is rated at 95 W TDP with an IGP slot width and no power connectors, while the RX 7900 XT draws 300 W, uses a dual-slot cooler, and requires 2x 8-pin connectors with a 700 W suggested PSU. The RX 7900 XT measures 276 mm in length, 110 mm in height, and 51 mm in width, while the RTX A2000 Mobile lists no dimensions. Display outputs differ: NVIDIA's are portable-device dependent, while AMD offers 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C. Both use PCIe 4.0 x16.

FAQ

Q: Which card has a higher average benchmark score?

A: The NVIDIA RTX A2000 Mobile has an average score of 13,821, which is 0.6% higher than the AMD Radeon RX 7900 XT's 13,745. The RX 7900 XT's rival list shows a 0.5% deficit to the RTX A2000 Mobile.

Q: Why does the RTX A2000 Mobile win the Geekbench OpenCL test?

A: The RTX A2000 Mobile scores 56,518 in Geekbench OpenCL, while the RX 7900 XT scores 12,756. This represents a 343.1% advantage for NVIDIA, the largest margin in any head-to-head benchmark.

Q: How does the RX 7900 XT perform in DirectX 12?

A: The RX 7900 XT scores 110 in Passmark DirectX 12, compared to 47 for the RTX A2000 Mobile. This is a 57.3% lead for AMD. The RX 7900 XT also has a 3DMark Steel Nomad DX12 score of 5,623.

Q: What is the memory capacity difference?

A: The RX 7900 XT has 20 GB of GDDR6 memory on a 320-bit bus, while the RTX A2000 Mobile has 4 GB of GDDR6 on a 128-bit bus. The bandwidth difference is 800.0 GB/s versus 192.0 GB/s.

Q: Do both cards support the same APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The API lists are identical between the two cards.

Q: Which card has a higher FP32 compute throughput?

A: The RX 7900 XT delivers 51.48 TFLOPS of FP32, while the RTX A2000 Mobile delivers 8.637 TFLOPS. The RX 7900 XT also offers 103.0 TFLOPS of FP16, compared to 8.637 TFLOPS for NVIDIA.

Where Each One Wins

The RTX A2000 Mobile wins exclusively in the Geekbench OpenCL benchmark. Its 56,518 score stands as the single bright spot, and the 343.1% margin over the RX 7900 XT makes it the definitive choice for OpenCL compute tasks. The card's 95 W TDP and IGP form factor also make it suitable for portable or power-constrained systems, though no direct benchmarks validate this advantage.

The RX 7900 XT wins every other benchmark in the comparison. It leads in Vulkan (71,068 vs 53,146), all four DirectX tests (DX9, DX10, DX11, DX12), 2D graphics (1,232 vs 491), 3D graphics (29,009 vs 9,611), and Passmark GPU Compute (16,828 vs 4,334). The margins range from 25.2% in Vulkan to 80% in DirectX 11. For gaming, 3D rendering, or general-purpose compute, the RX 7900 XT is the clear winner. Its 20 GB memory and 800.0 GB/s bandwidth also provide a substantial capacity advantage, though the data does not include memory-specific tests. The use-case split is simple: choose the RTX A2000 Mobile for OpenCL-specific workloads, and the RX 7900 XT for everything else.