AMD FirePro W5000 vs NVIDIA GRID K2 Comparison

Where Each One Wins

The benchmark data splits these two cards along clear lines, and the winner depends entirely on the workload and the API in question. The NVIDIA GRID K2 takes the only direct head-to-head victory recorded in the database, winning the Geekbench OpenCL test with a score of 10,602 against the AMD FirePro W5000's 9,803, a margin of 7.5%. That is a decisive win in a compute-oriented, cross-platform benchmark, and it reflects the GRID K2's design as a virtualized server-side compute card rather than a traditional workstation adapter.

However, the AMD FirePro W5000 holds its ground in a different arena: graphics API compatibility. While the GRID K2 supports DirectX 12 (11_0) and Vulkan 1.2.175, the FirePro W5000 supports DirectX 12 (11_1) and Vulkan 1.2.170. The FirePro also carries physical display outputs (1x DVI, 2x DisplayPort 1.2), whereas the GRID K2 has no outputs at all. For a workstation user who needs to drive monitors directly, the FirePro W5000 is the only functional choice between the two. The GRID K2 is a compute or virtualized desktop card that requires a host system to pass video through, so in a traditional desktop workstation context, the FirePro wins by default on connectivity.

The percentile rankings reinforce the split. The FirePro W5000 sits at the 47th percentile against all GPUs, while the GRID K2 sits at the 42nd percentile, based on their average benchmark scores (9,803 for the FirePro, 8,080 for the GRID K2). Note that the GRID K2's average is dragged down by its Geekbench Metal score of 5,557, which is not a test the FirePro appears in. In OpenCL specifically, the GRID K2 is the stronger card. In terms of peer comparison, the FirePro W5000's nearest rival is the NVIDIA Quadro 6000 (9,846, a 0.4% gap) and the NVIDIA Quadro M2000M (9,832, a 0.3% gap), showing it trades blows with professional cards in the same performance class. The GRID K2, by contrast, sits alongside consumer GeForce parts like the GTX 650 Ti Boost (8,067, a 0.2% gap) and the GTX 880M (8,040, a 0.5% gap), which places its average performance in a lower tier than the FirePro's.

The practical takeaway: the GRID K2 wins raw compute throughput, while the FirePro W5000 wins desktop usability and API feature level. For a headless server or virtualized environment, the GRID K2 is the pick. For a physical workstation with monitors attached, the FirePro W5000 is the only option that works out of the box.

Architecture Differences

The two cards come from different architectural schools, and that shows up in every major specification. The AMD FirePro W5000 uses the Pitcairn chip built on GCN 1.0, a 28 nm design from TSMC with 2,800 million transistors on a 212 mm² die, yielding a transistor density of 13.2 million per square millimeter. The NVIDIA GRID K2 uses the GK104 chip built on Kepler, also 28 nm from TSMC, but with 3,540 million transistors on a 294 mm² die, giving a lower density of 12.0 million per square millimeter. The GRID K2 packs 26% more transistors into a 39% larger die, which explains its higher compute resources.

The compute configuration diverges sharply. The FirePro W5000 has 768 shading units, 48 texture mapping units (TMUs), and 32 raster operation units (ROPs). The GRID K2 doubles the shading units to 1,536 and nearly triples the TMUs to 128, while keeping ROPs at 32. This gives the GRID K2 a theoretical texture rate of 95.36 GTexel/s versus the FirePro's 39.60 GTexel/s, a massive 2.4x advantage in texture fill. The pixel rates are closer: 23.84 GPixel/s for the GRID K2 versus 26.40 GPixel/s for the FirePro, with the FirePro actually leading by 11% in pixel throughput due to its higher effective clock behavior.

The FP32 compute numbers tell the same story as the texture rates. The GRID K2 delivers 2.289 TFLOPS of single-precision compute, while the FirePro W5000 delivers 1,267.2 GFLOPS (1.267 TFLOPS). The GRID K2 is 81% ahead in raw floating-point throughput. Neither card has any ray tracing or tensor cores, as both predate those technologies.

Memory architecture also differs. The FirePro W5000 has 2 GB of GDDR5 on a 256-bit bus, running at 800 MHz (3.2 Gbps effective), for 102.4 GB/s of bandwidth. The GRID K2 has 4 GB of GDDR5 on the same 256-bit bus, but at 1,250 MHz (5 Gbps effective), yielding 160.0 GB/s. That is a 56% bandwidth advantage for the GRID K2, plus double the capacity, which matters for large datasets in virtualized workloads.

Power and physical design are polar opposites. The FirePro W5000 is a single-slot card with a 75 W TDP, no power connectors, and a suggested 250 W power supply. The GRID K2 is a dual-slot card with a 225 W TDP, requiring one 6-pin and one 8-pin power connector, and a suggested 550 W power supply. The GRID K2 is also physically longer at 267 mm (10.5 inches) versus the FirePro's 183 mm (7.2 inches). The FirePro has display outputs; the GRID K2 has none.

Head-to-Head Benchmarks

The database records one direct comparison between the two cards, and it is a clear win for the NVIDIA GRID K2. In the Geekbench OpenCL test, the GRID K2 scores 10,602 against the FirePro W5000's 9,803, a delta of 7.5% in favor of the GRID K2. This is not a marginal victory; it is a solid margin that reflects the GRID K2's higher shading unit count, higher texture rate, and greater memory bandwidth.

The GRID K2's OpenCL win is consistent with its hardware advantages. With 1,536 shading units versus 768, double the TMUs, and 160 GB/s versus 102.4 GB/s of bandwidth, the GRID K2 should outperform in compute-heavy OpenCL workloads. The fact that it wins by only 7.5% rather than by the 81% FP32 gap suggests that the FirePro W5000's GCN architecture is more efficient per FLOP, or that the benchmark is not purely compute-bound. The FirePro's higher pixel rate (26.40 versus 23.84 GPixel/s) may also help in certain OpenCL kernels that touch rasterization paths.

The GRID K2 also has a second benchmark recorded: Geekbench Metal, where it scores 5,557. The FirePro W5000 has no Metal result in the database, so this is not a direct comparison. However, this Metal score is significantly lower than the GRID K2's OpenCL score, which highlights how API selection can change performance characteristics. On Apple platforms, the GRID K2 would be substantially slower in Metal than in OpenCL, a factor that matters for any cross-platform deployment.

In terms of peer positioning, the FirePro W5000's 9,803 OpenCL score places it within 0.4% of the NVIDIA Quadro 6000 (9,846) and within 0.3% of the Quadro M2000M (9,832), while also edging past the GeForce GTX 1070 (9,780) by 0.2%. The GRID K2's average score of 8,080, which blends its OpenCL and Metal results, places it within 0.2% of the GeForce GTX 650 Ti Boost (8,067) and within 0.3% of the GTX 650 Ti (8,053). This shows that while the GRID K2 wins the head-to-head OpenCL test, its average performance across all recorded benchmarks is in a lower tier than the FirePro's.

Specification Differences

The two cards differ in nearly every measurable specification. The most significant gaps are in memory capacity (2 GB versus 4 GB), memory bandwidth (102.4 GB/s versus 160.0 GB/s), shading units (768 versus 1,536), TMUs (48 versus 128), FP32 compute (1,267.2 GFLOPS versus 2.289 TFLOPS), and TDP (75 W versus 225 W). The GRID K2 wins all of these except TDP, where the FirePro is far more power-efficient.

The FirePro W5000 leads in pixel rate (26.40 GPixel/s versus 23.84 GPixel/s), a 10.7% advantage that comes from its clock behavior. The FirePro also leads in API feature level for DirectX (11_1 versus 11_0) and has physical display outputs, while the GRID K2 has none. The Vulkan versions are close, with the GRID K2 at 1.2.175 and the FirePro at 1.2.170, a negligible difference.

Physical dimensions differ substantially. The FirePro W5000 is 183 mm long (7.2 inches) and 111 mm tall (4.4 inches), while the GRID K2 is 267 mm long (10.5 inches) with no recorded height. The FirePro is single-slot with no power connectors; the GRID K2 is dual-slot with one 6-pin and one 8-pin connector. The suggested power supply ratings are 250 W for the FirePro and 550 W for the GRID K2.

Release timing and status also differ. The FirePro W5000 was released on August 6, 2012, with a launch MSRP of 599 USD, and has a recorded predecessor (FirePro Terascale) and successor (Radeon Pro Polaris). The GRID K2 was released on May 10, 2013, with a launch MSRP of 5,199 USD, and has no recorded predecessor or successor. Both cards are end-of-life. The GRID K2's launch MSRP was over eight times higher than the FirePro's, reflecting its enterprise virtualization positioning rather than desktop workstation use.

FAQ

Q: Which card is faster in OpenCL compute?

A: The NVIDIA GRID K2 wins the Geekbench OpenCL test with a score of 10,602 versus the AMD FirePro W5000's 9,803, a 7.5% advantage for the GRID K2.

Q: Can the NVIDIA GRID K2 drive a monitor directly?

A: No. The GRID K2 has no display outputs, while the FirePro W5000 has 1x DVI and 2x DisplayPort 1.2. The FirePro is the only one of the two that can connect directly to a display.

Q: How do their average benchmark scores compare?

A: The FirePro W5000 has an average benchmark score of 9,803, placing it at the 47th percentile of all GPUs. The GRID K2 has an average score of 8,080, placing it at the 42nd percentile, due in part to its lower Metal score of 5,557.

Q: Which card has more memory and bandwidth?

A: The GRID K2 has 4 GB of GDDR5 with 160.0 GB/s of bandwidth, while the FirePro W5000 has 2 GB of GDDR5 with 102.4 GB/s. The GRID K2 offers double the capacity and 56% more bandwidth.

Q: What are the TDP and power requirements for each card?

A: The FirePro W5000 has a 75 W TDP with no power connectors and a suggested 250 W power supply. The GRID K2 has a 225 W TDP with one 6-pin and one 8-pin connector and a suggested 550 W power supply.

Q: How does the GRID K2's DirectX support compare to the FirePro W5000's?

A: The FirePro W5000 supports DirectX 12 (11_1), while the GRID K2 supports DirectX 12 (11_0). The FirePro has a slightly higher feature level, while both support OpenGL 4.6 and similar Vulkan versions (1.2.170 for the FirePro, 1.2.175 for the GRID K2).