AMD FirePro D700 vs AMD Radeon RX 6600M Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive victory for the AMD Radeon RX 6600M in every shared benchmark test. The AMD FirePro D700 does not win a single head-to-head comparison, with the Radeon RX 6600M taking both available tests. In Geekbench OpenCL, the RX 6600M scores 67,765 against the FirePro D700's 23,716, a margin of 65% in favor of the newer mobile part. The gap is nearly as large in Geekbench Vulkan, where the RX 6600M posts 73,740 versus the FirePro D700's 27,968, a 62.1% advantage.

These are not marginal differences. The OpenCL result places the RX 6600M at nearly three times the raw compute score of the FirePro D700, and the Vulkan result shows a similar pattern. The FirePro D700's average benchmark score across its two recorded tests is 25,842, while the RX 6600M averages 23,273 across a much broader suite of eleven tests. That broader test set matters: the RX 6600M's average is pulled down by several low-scoring Passmark sub-tests (DirectX 9 at 184, DirectX 12 at 52, and G2D at 728), yet its overall average still lands within 10% of the FirePro D700's narrower average.

Looking at the percentile rankings, the FirePro D700 sits at the 71st percentile of all GPUs in the database, while the RX 6600M ranks at the 68th percentile. This is a curious inversion: despite losing every head-to-head test, the FirePro D700 holds a slightly higher overall percentile because its limited benchmark set (only two tests) may not capture the same workload diversity as the RX 6600M's eleven tests. The nearest rivals for the FirePro D700 include the AMD FirePro W7100 (average score 25,856, delta -0.1%), the AMD Radeon R9 M395X (25,891, -0.2%), and the NVIDIA GeForce RTX 3080 Ti Mobile (25,740, +0.4%). The RX 6600M's nearest rivals are the AMD Radeon R9 M290X (23,276, delta 0%), the AMD Radeon Pro Vega 16 (23,250, +0.1%), and the NVIDIA P106-100 (23,249, +0.1%).

The RX 6600M's OpenCL score of 67,765 is not just ahead of the FirePro D700; it is roughly 2.6 times the FirePro D700's nearest rival average. The Vulkan gap is similarly stark: 73,740 versus 27,968. For context, the FirePro D700's Vulkan score is only 20% higher than its own OpenCL score, while the RX 6600M's Vulkan score is 8.8% higher than its OpenCL score, indicating the newer architecture scales better across different API workloads.

The Verdict

The data points to one clear conclusion: the AMD Radeon RX 6600M is the superior performer in every measured category shared between the two cards. It wins the OpenCL and Vulkan benchmarks by margins of 65% and 62.1% respectively, and it does so while operating at a significantly lower thermal envelope. The RX 6600M has a TDP of 100 W compared to the FirePro D700's 274 W, meaning it delivers over double the OpenCL performance at roughly one-third the power draw. The FirePro D700's only statistical advantage is its 71st percentile ranking versus the RX 6600M's 68th, but that ranking is based on just two tests and does not reflect the head-to-head results.

For anyone choosing between these two cards based on the database measurements, the RX 6600M is the clear pick for general compute and graphics workloads. The FirePro D700 retains relevance only in very specific legacy professional contexts, and even then, the performance deficit is difficult to justify. The RX 6600M's higher transistor count (11,060 million versus 4,313 million), smaller die size (237 mm² versus 352 mm²), and dramatically higher transistor density (46.7M per mm² versus 12.3M per mm²) all point to a more modern and efficient design.

Where Each One Wins

The AMD Radeon RX 6600M wins in raw compute throughput. Its FP32 performance is 8.659 TFLOPS versus the FirePro D700's 3.482 TFLOPS, a 148.7% advantage. Its texture rate is 270.6 GTexel/s versus 108.8 GTexel/s, and its pixel rate is 154.6 GPixel/s versus 27.20 GPixel/s. The RX 6600M also supports FP16 at 17.32 TFLOPS (2:1 ratio), a feature entirely absent from the FirePro D700's specifications. In memory technology, the RX 6600M uses 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth, while the FirePro D700 uses 6 GB of GDDR5 on a 384-bit bus with 263.0 GB/s bandwidth. The FirePro D700 actually has a bandwidth advantage here (263.0 GB/s versus 224.0 GB/s), but that does not translate into benchmark wins.

The FirePro D700's wins are limited to its higher memory bandwidth and its dual-slot form factor with six mini-DisplayPort outputs and one SDI output, which supports multi-display professional setups. It also has a wider memory bus (384-bit versus 128-bit) and more shading units (2048 versus 1792), though the RX 6600M compensates with higher clock speeds: base 2068 MHz, boost 2416 MHz, and game 2177 MHz, versus no recorded base or boost clocks for the FirePro D700. The RX 6600M also supports PCIe 4.0 x8, while the FirePro D700 is limited to PCIe 3.0 x16.

FAQ

Q: Which GPU has a higher OpenCL benchmark score?

A: The AMD Radeon RX 6600M scores 67,765 in Geekbench OpenCL, compared to the AMD FirePro D700's 23,716, a 65% difference in favor of the RX 6600M.

Q: How do the two compare in Vulkan performance?

A: The RX 6600M scores 73,740 in Geekbench Vulkan versus the FirePro D700's 27,968, giving the RX 6600M a 62.1% lead.

Q: What is the power consumption difference?

A: The FirePro D700 has a TDP of 274 W, while the RX 6600M has a TDP of 100 W. This means the RX 6600M delivers higher benchmark scores while using 174 W less power.

Q: Which card has more memory bandwidth?

A: The FirePro D700 has 263.0 GB/s bandwidth from 6 GB of GDDR5 on a 384-bit bus, while the RX 6600M has 224.0 GB/s from 8 GB of GDDR6 on a 128-bit bus.

Q: Do both cards support the same DirectX version?

A: No. The RX 6600M supports DirectX 12 Ultimate (12_2), while the FirePro D700 supports DirectX 12 (11_1). Both support OpenGL 4.6, but the RX 6600M supports Vulkan 1.4 versus the FirePro D700's Vulkan 1.2.170.

Q: What are the release dates for these GPUs?

A: The FirePro D700 was released on 2014-01-17, and the RX 6600M was released on 2021-05-30. Both are now end-of-life products.

Architecture Differences

The two GPUs come from entirely different architectural generations. The FirePro D700 is built on GCN 1.0 with the Tahiti chip, fabricated on a 28 nm process at TSMC. It contains 4,313 million transistors on a 352 mm² die, yielding a transistor density of 12.3 million per mm². The Radeon RX 6600M uses RDNA 2.0 with the Navi 23 chip, also fabricated at TSMC but on a 7 nm process. It packs 11,060 million transistors onto a much smaller 237 mm² die, achieving 46.7 million transistors per mm². This represents a massive efficiency improvement: roughly 2.6 times more transistors in a 33% smaller area.

The FirePro D700 belongs to the FirePro Data Center (Dx00) generation, with a predecessor in the FirePro Terascale line and a successor in the Radeon Instinct line. The RX 6600M belongs to the Navi Mobile (RX 6000M) generation, with its predecessor being Polaris Mobile. The RX 6600M includes 28 ray tracing cores, a feature completely absent from the FirePro D700, which has no RT cores or tensor cores. The RX 6600M also has a higher ROP count (64 versus 32) and a slightly lower shading unit count (1792 versus 2048) but compensates with much higher clock speeds.

The memory subsystems differ fundamentally. The FirePro D700 uses 6 GB of GDDR5 with a 384-bit bus and 263.0 GB/s bandwidth. The RX 6600M uses 8 GB of GDDR6 with a 128-bit bus and 224.0 GB/s bandwidth. The FirePro D700's wider bus gives it higher raw bandwidth, but the RX 6600M's newer memory type and higher effective speed (14 Gbps versus 5.5 Gbps) partially offset this. The FirePro D700 has a memory clock of 1370 MHz (5.5 Gbps effective), while the RX 6600M has a memory clock of 1750 MHz (14 Gbps effective).

Specification Differences

The key specification differences between the two cards are numerous. The process node differs: 28 nm for the FirePro D700 versus 7 nm for the RX 6600M. Transistor count is 4,313 million versus 11,060 million, die size is 352 mm² versus 237 mm², and transistor density is 12.3M per mm² versus 46.7M per mm². The FirePro D700 has no recorded base or boost clocks, while the RX 6600M has a base clock of 2068 MHz, boost clock of 2416 MHz, and game clock of 2177 MHz.

Memory configurations differ: 6 GB GDDR5 with a 384-bit bus and 263.0 GB/s bandwidth for the FirePro D700, versus 8 GB GDDR6 with a 128-bit bus and 224.0 GB/s bandwidth for the RX 6600M. The shading unit count is 2048 versus 1792, TMUs are 128 versus 112, and ROPs are 32 versus 64. The RX 6600M adds 28 ray tracing cores. FP32 performance is 3.482 TFLOPS versus 8.659 TFLOPS, and the RX 6600M also offers FP16 at 17.32 TFLOPS (2:1), which the FirePro D700 lacks.

Power and form factor differ substantially: the FirePro D700 has a TDP of 274 W, is dual-slot, and has a suggested PSU of 600 W, while the RX 6600M has a TDP of 100 W and is an IGP (integrated graphics processor) form factor with no power connectors and no suggested PSU listed. The bus interface is PCIe 3.0 x16 for the FirePro D700 versus PCIe 4.0 x8 for the RX 6600M. Display outputs are 6x mini-DisplayPort 1.2 and 1x SDI for the FirePro D700, while the RX 6600M's outputs are portable device dependent. The FirePro D700 has a length of 279 mm (11 inches), while the RX 6600M has no recorded dimensions. DirectX support is 12 (11_1) for the FirePro D700 versus 12 Ultimate (12_2) for the RX 6600M, with Vulkan support at 1.2.170 versus 1.4 respectively. Both support OpenGL 4.6.