AMD FirePro M6100 vs AMD Radeon RX 7900 XT Comparison

# AMD Radeon RX 7900 XT vs AMD FirePro M6100

The AMD Radeon RX 7900 XT and AMD FirePro M6100 represent two vastly different eras of AMD graphics hardware. The RX 7900 XT, built on the RDNA 3.0 architecture with a 5 nm process, is a modern desktop flagship-class card, while the FirePro M6100, based on GCN 2.0 and a 28 nm process, is a legacy mobile workstation part from 2014. The benchmark data shows a single shared test result—Geekbench OpenCL—where the older FirePro card actually edges out the newer RX 7900 XT by 4.5%. However, this narrow result belies the massive architectural and specification gulf between the two, which this analysis will quantify using the available data.

FAQ

Q: Which GPU wins in the only shared benchmark, Geekbench OpenCL?

A: The AMD FirePro M6100 wins with a score of 13354, compared to the RX 7900 XT's 12756. The delta is -4.5% from the RX 7900 XT's perspective, meaning the FirePro M6100 is 4.5% ahead in this specific workload.

Q: What is the average benchmark score difference between the two cards?

A: The RX 7900 XT has an average benchmark score of 13745, while the FirePro M6100 averages 13354. The RX 7900 XT holds a lead of approximately 391 points, or about 2.9% higher average.

Q: How do their transistor counts and process nodes compare?

A: The RX 7900 XT uses 57,700 million transistors on a 5 nm TSMC process with a die size of 529 mm². The FirePro M6100 uses 2,080 million transistors on a 28 nm process with a die size of 160 mm². This gives the RX 7900 XT a transistor density of 109.1M/mm² versus 13.0M/mm².

Q: What memory configurations do the two GPUs feature?

A: The RX 7900 XT has 20 GB of GDDR6 memory on a 320-bit bus, delivering 800.0 GB/s bandwidth. The FirePro M6100 has 2 GB of GDDR5 on a 128-bit bus, providing 96.00 GB/s bandwidth.

Q: Which card supports ray tracing cores?

A: Only the RX 7900 XT has dedicated ray tracing cores, with 84 RT cores. The FirePro M6100 has no RT cores listed in the data.

Q: What are the DirectX and Vulkan API support levels?

A: The RX 7900 XT supports DirectX 12 Ultimate (12_2) and Vulkan 1.4. The FirePro M6100 supports DirectX 12 (12_0) and Vulkan 1.2.170.

The Verdict

From the data, the choice between these two GPUs is starkly clear for most workloads. The RX 7900 XT dominates in nearly every measurable specification and in the broader benchmark context. It offers 5376 shading units versus 896, 336 TMUs versus 56, and 192 ROPs versus 16. Its FP32 compute of 51.48 TFLOPS is over 26 times that of the FirePro M6100's 1.971 TFLOPS. Memory bandwidth is 800.0 GB/s versus 96.00 GB/s, and the RX 7900 XT carries 20 GB of GDDR6 versus 2 GB of GDDR5.

The FirePro M6100's only victory is the single Geekbench OpenCL result where it scores 13354 against 12756. This suggests that in this specific OpenCL compute test, the older GCN architecture and its 28 nm process manage to outperform the newer card by 4.5%. However, this is a single data point among many. The RX 7900 XT has a full suite of benchmarks including 3DMark Steel Nomad DX12 at 5623, Passmark G3D at 29009, and Passmark GPU Compute at 16828, while the FirePro M6100 only has the one OpenCL result.

For any modern gaming, rendering, or compute workload, the RX 7900 XT is the clear choice based on its massive compute, memory, and feature advantages. The FirePro M6100 might be considered only in legacy mobile workstation scenarios where its 2 GB memory and GCN 2.0 feature set are sufficient, but the data shows it is vastly outclassed in raw specifications. The RX 7900 XT also sits in the 55th percentile of all GPUs versus the FirePro M6100's 54th, a small but consistent edge.

Head-to-Head Benchmarks

The only direct head-to-head benchmark in the data is Geekbench OpenCL. Here, the AMD FirePro M6100 scores 13354, while the AMD Radeon RX 7900 XT scores 12756. The delta is -4.5% for the RX 7900 XT, meaning the FirePro M6100 is 4.5% faster in this test. This is notable because the RX 7900 XT has over 27 times the transistor count and a 5 nm process versus 28 nm, yet it loses this specific workload.

The broader benchmark picture shows the RX 7900 XT's strengths. In 3DMark Steel Nomad DX12, it scores 5623. In Geekbench Vulkan, it scores 71068, which is dramatically higher than its OpenCL score. Passmark results show a G3D score of 29009 and a GPU Compute score of 16828. These numbers indicate that the RX 7900 XT excels in graphics-centric and Vulkan workloads, which are more representative of modern gaming and professional rendering.

The nearest rivals for the RX 7900 XT include the AMD Radeon 660M (avg score 13812, delta -0.5%), NVIDIA RTX A2000 Mobile (13821, -0.5%), AMD Radeon RX 570X (13871, -0.9%), and AMD Radeon RX 9070 XT (13543, +1.5%). For the FirePro M6100, its nearest rivals are the AMD Radeon RX 5500M (13356, 0% delta), AMD Radeon HD 8950M (13376, -0.2%), AMD Radeon Pro 555X (13321, +0.3%), and AMD Radeon Pro 555 (13407, -0.4%). These rival comparisons show that both cards are positioned in similar average-score bands, despite the RX 7900 XT having a much higher peak performance in specific tests.

The wins tally is 0 for the RX 7900 XT and 1 for the FirePro M6100 in the head-to-head, but this only reflects the single shared test. The RX 7900 XT's additional benchmarks, while not directly comparable, demonstrate a much broader performance envelope.

Specification Differences

The two GPUs differ in nearly every specification field. The RX 7900 XT has a base clock of 1387 MHz, a boost clock of 2394 MHz, and a game clock of 2025 MHz. The FirePro M6100 has no base, boost, or game clock listed. Memory clocks are 2500 MHz (20 Gbps effective) for the RX 7900 XT versus 1500 MHz (6 Gbps effective) for the FirePro M6100.

Memory capacity is 20 GB vs 2 GB, with bus widths of 320 bit vs 128 bit. Bandwidth is 800.0 GB/s vs 96.00 GB/s. Shading units are 5376 vs 896, TMUs are 336 vs 56, and ROPs are 192 vs 16. The RX 7900 XT has 84 RT cores; the FirePro M6100 has none. Pixel rate is 459.6 GPixel/s vs 17.60 GPixel/s, and texture rate is 804.4 GTexel/s vs 61.60 GTexel/s. FP32 compute is 51.48 TFLOPS vs 1.971 TFLOPS.

The RX 7900 XT has a TDP of 300 W, requires a 700 W suggested PSU, uses 2x 8-pin power connectors, and is a dual-slot card measuring 276 mm x 110 mm x 51 mm. The FirePro M6100 has no TDP listed, no power connectors, and is an MXM Module with portable-device-dependent outputs. The RX 7900 XT uses PCIe 4.0 x16, while the FirePro M6100 uses MXM-B (3.0). Display outputs are 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C for the RX 7900 XT versus portable-device-dependent for the FirePro M6100.

Architecture Differences

The architectural gap is fundamental. The RX 7900 XT uses the Navi 31 chip with RDNA 3.0 architecture, codename Plum Bonito, from the Navi III (RX 7000) generation. The FirePro M6100 uses the Emerald chip with GCN 2.0, from the FirePro Mobile (Mx100) generation. The RX 7900 XT is built on a 5 nm TSMC process with 57,700 million transistors on a 529 mm² die, yielding a transistor density of 109.1M/mm². The FirePro M6100 uses 28 nm TSMC with 2,080 million transistors on a 160 mm² die, giving 13.0M/mm² density.

The RX 7900 XT supports FP16 with 103.0 TFLOPS (2:1 ratio), while the FirePro M6100 has no FP16 data listed. The RX 7900 XT has 84 dedicated RT cores, a feature entirely absent from the FirePro M6100. API support differs: DirectX 12 Ultimate (12_2) and Vulkan 1.4 for the RX 7900 XT versus DirectX 12 (12_0) and Vulkan 1.2.170 for the FirePro M6100. Both support OpenGL 4.6.

Release dates are far apart—the RX 7900 XT launched on 2022-11-02, while the FirePro M6100 launched on 2014-05-26. The RX 7900 XT's predecessor is Navi II and successor is Navi IV; the FirePro M6100's predecessor is FirePro Mobility and successor is Radeon Pro Mobile. Both are end-of-life products. The RX 7900 XT has a launch MSRP of 899 USD; the FirePro M6100 has no launch MSRP listed.

The data shows a generational leap in every architectural metric. The RDNA 3.0 design with its chiplet-based Navi 31 and 5 nm process delivers orders of magnitude more compute density and capability than the monolithic GCN 2.0 Emerald chip. The FirePro M6100's only edge—a 4.5% higher OpenCL score—may stem from driver optimizations or the specific workload's compatibility with GCN's compute units, but the architectural evidence points to the RX 7900 XT being the superior hardware in nearly all respects.