AMD FirePro M6100 vs NVIDIA GeForce GTX 660 Ti Comparison

Head-to-Head Benchmarks

The database contains a single direct comparison between the NVIDIA GeForce GTX 660 Ti and the AMD FirePro M6100: the Geekbench OpenCL test. In this benchmark, the GTX 660 Ti records a score of 15113, while the FirePro M6100 manages 13354. The resulting margin is a 13.2% advantage for the NVIDIA card, a decisive lead in raw compute throughput as measured by OpenCL workloads.

Contextualizing the GTX 660 Ti’s performance, its average benchmark score of 15063 places it in the 57th percentile of all GPUs. Its nearest rivals in the database are tightly clustered around this figure. The AMD Radeon Pro 560X scores 15082, a delta of -0.1% relative to the GTX 660 Ti, meaning the two are effectively identical in this metric. The AMD Radeon RX 7600 posts 15171, a 0.7% gap in the Radeon’s favor. The NVIDIA GeForce RTX 3050 OEM sits at 15199, 0.9% ahead, and the AMD Radeon 680M reaches 15270, a 1.4% lead over the Kepler card.

For the FirePro M6100, the average score of 13354 places it in the 54th percentile of all GPUs. Its closest rival is the AMD Radeon RX 5500M, which scores 13356, a delta of 0.0% that makes them statistical equals. The AMD Radeon HD 8950M scores 13376, a 0.2% edge for that older card, while the AMD Radeon Pro 555X trails by 0.3% at 13321. The AMD Radeon Pro 555 scores higher than the FirePro, reaching 13407, a delta of -0.4% (meaning the FirePro is behind).

The head-to-head result is decisive: the GTX 660 Ti wins the only benchmark where both are present, and it wins by a substantial margin. The 13.2% delta is far larger than the differences the FirePro sees against its own nearest rivals, which are all within 0.4% of its score. In short, on raw compute performance, the NVIDIA card is in a different class.

Where Each One Wins

The data presents a clear winner in raw performance. The NVIDIA GeForce GTX 660 Ti wins 1 out of 1 head-to-head benchmarks, while the AMD FirePro M6100 wins none. There is no benchmark in the database where the FirePro outperforms the GTX 660 Ti.

Looking at the broader performance landscape, the GTX 660 Ti’s average score of 15063 is higher than the FirePro’s 13354 by 12.8% (a difference of 1709 points). This is consistent with the head-to-head result. The NVIDIA card also sits in a higher percentile (57th vs. 54th), meaning it outperforms a larger fraction of the entire GPU population.

For use-case analysis, the data supports the GTX 660 Ti as the stronger choice for compute-heavy tasks, such as OpenCL-accelerated workloads. The FirePro M6100, despite its professional branding, trails significantly. Its only advantage is in its form factor: it is an MXM module, which is a mobile standard, whereas the GTX 660 Ti is a dual-slot desktop card. This means the FirePro is designed for laptops or compact workstations, while the NVIDIA card is a full-size desktop part. If a user requires a GPU for a laptop or an MXM-based system, the FirePro is the only option among the two. Otherwise, the GTX 660 Ti wins every performance comparison that can be made from the data.

Architecture Differences

The two GPUs come from different architectural generations and design philosophies. The NVIDIA GeForce GTX 660 Ti uses the GK104 chip, based on the Kepler architecture, and belongs to the GeForce 600 generation. It is manufactured by TSMC on a 28 nm process, with a die size of 294 mm² and a transistor count of 3,540 million. Its transistor density is 12.0 million per square millimeter.

The AMD FirePro M6100 uses the Emerald chip, based on GCN 2.0 architecture, and is part of the FirePro Mobile (Mx100) generation. It is also built by TSMC on a 28 nm process, but the die is smaller at 160 mm², with 2,080 million transistors. Its transistor density is slightly higher at 13.0 million per square millimeter, which is a small architectural efficiency, but in practice it is a smaller and less powerful chip.

The internal specifications diverge significantly. The GTX 660 Ti has 1344 shading units, 112 texture mapping units (TMUs), and 24 raster operation pipelines (ROPs). The FirePro M6100 has 896 shading units, 56 TMUs, and 16 ROPs. These numbers reflect the NVIDIA card’s larger execution resources.

Memory configurations are different. The GTX 660 Ti has 2 GB of GDDR5, on a 192-bit bus, achieving a bandwidth of 144.2 GB/s. The FirePro has 2 GB of GDDR5, but on a narrower 128-bit bus, giving a bandwidth of only 96.00 GB/s. That is a 50% bandwidth advantage for the NVIDIA card. The effective memory clock is nearly identical: the NVIDIA card uses 6 Gbps effective, while the AMD card uses 6 Gbps effective, but the wider bus is the key differentiator.

The computed throughput figures show NVIDIA dominance. The GTX 660 Ti reaches a pixel rate of 27.44 GPixel/s and a texture rate of 109.8 GTexel/s. The FirePro M6100 achieves 17.60 GPixel/s and 61.60 GTexel/s. The NVIDIA card also offers higher FP32 performance at 2.634 TFLOPS, compared to the FirePro’s 1.971 TFLOPS.

Power and interface details are entirely different. The GTX 660 Ti is a dual-slot card, requiring 2x 6-pin power connectors, with a TDP of 150 W and a suggested PSU of 450 W. It uses a PCIe 3.0 x16 interface. The FirePro M6100 is an MXM module, has no power connectors listed, and uses an MXM-B (3.0) interface. Its TDP is not listed in the database. The NVIDIA card has standard display outputs (2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2), while the FirePro’s outputs are listed as “Portable Device Dependent”. The NVIDIA card is 241 mm long (9.5 inches), while the AMD module has no listed dimensions.

Architecturally, the GTX 660 Ti supports DirectX 12 (11_0), while the FirePro supports DirectX 12 (12_0), meaning the AMD card has a more recent feature level for DirectX 12. Both support OpenGL 4.6. The GTX 660 Ti has Vulkan 1.2.175, while the FirePro has Vulkan 1.2.170, a minor version difference in favor of the NVIDIA.

FAQ

Q: In the only direct benchmark, which GPU wins?

A: The NVIDIA GeForce GTX 660 Ti wins the Geekbench OpenCL test with a score of 15113 against the AMD FirePro M6100’s 13354, a 13.2% margin.

Q: How does the GTX 660 Ti compare to its nearest rivals in the database?

A: The GTX 660 Ti’s average score is 15063. It is 0.1% behind the AMD Radeon Pro 560X (15082), 0.7% behind the AMD Radeon RX 7600 (15171), 0.9% behind the NVIDIA GeForce RTX 3050 OEM (15199), and 1.4% behind the AMD Radeon 680M (15270).

Q: How does the FirePro M6100 compare to its nearest rivals?

A: The FirePro M6100’s average score is 13354. It is exactly matched by the AMD Radeon RX 5500M (0% delta), 0.2% behind the AMD Radeon HD 8950M (13376), 0.3% ahead of the AMD Radeon Pro 555X (13321), and 0.4% behind the AMD Radeon Pro 555 (13407).

Q: Which GPU has more memory bandwidth?

A: The NVIDIA GeForce GTX 660 Ti has a memory bandwidth of 144.2 GB/s, while the AMD FirePro M6100 has only 96.00 GB/s. This is because the GTX 660 Ti uses a 192-bit bus, versus the FirePro’s narrower 128-bit bus.

Q: What are the core counts of each GPU?

A: The GTX 660 Ti has 1344 shading units, 112 TMUs, and 24 ROPs. The FirePro M6100 has 896 shading units, 56 TMUs, and 16 ROPs.

Q: What are the physical form factors of each card?

A: The NVIDIA GTX 660 Ti is a dual-slot desktop card (241 mm long) with 2x 6-pin power connectors and a 150 W TDP. The AMD FirePro M6100 is an MXM module with no power connectors and a device-dependent interface.

The Verdict

The recorded data points to a single conclusion: the NVIDIA GeForce GTX 660 Ti is the superior performer. In the only head-to-head benchmark, it beats the AMD FirePro M6100 by 13.2%. Its average benchmark score of 15060 is higher than the FirePro’s 13354, and it sits in a higher percentile (57th vs 54th). The NVIDIA card also has more shading units, TMUs, ROPs, and higher memory bandwidth, leading to a nearly 50% advantage in texture and pixel rates.

The AMD FirePro M6100 does not win any benchmark in the database. Its only distinguishing trait is its form factor: it is an MXM module, which is required for certain mobile or embedded systems. In that niche, it is the only option between the two. But for any user who can accommodate a full-size desktop GPU, the GTX 660 Ti is the clear pick. Its raw compute, texture, and pixel throughput are decisively ahead, and its nearest rivals in the database are all within 1.4% of its score, indicating it remains competitive in its class. The FirePro M6100, by contrast, is in a lower performance tier, closely matched with mobile Radeon Pro and Radeon RX parts that sit around the 13300-13400 score range.

In the absence of any test where the FirePro wins, the recommendation is direct: select the NVIDIA GeForce GTX 660 Ti for any performance-sensitive workload. The FirePro M6100 is only relevant for users whose system requires an MXM module, and even then, its advantage is limited to its form factor and its support for DirectX 12 (12_0). For all other scenarios, the data shows the GTX 660 Ti is the stronger GPU.