NVIDIA RTX A1000 vs NVIDIA RTX PRO 4500 Blackwell Workstation Comparison

Where Each One Wins

The recorded data separates these two workstation cards into completely different performance tiers. The NVIDIA RTX A1000, built on the Ampere architecture, posts an average benchmark score of 34207 across its three recorded tests. That places it in the 79th percentile of all GPUs in the database. Its nearest rivals include the NVIDIA RTX A2000 12 GB at an average score of 34154, a delta of 0.2 percent, and the AMD Radeon RX 560 XT at 34133, also a 0.2 percent delta. The NVIDIA TITAN V sits slightly above at 34355, a negative delta of 0.4 percent from the A1000, while the AMD Radeon RX 480 trails at 33997, a positive delta of 0.6 percent.

The NVIDIA RTX PRO 4500 Blackwell Workstation has no recorded benchmark scores in the database. Its average benchmark score is listed as 0, and it holds the 50th percentile position among all GPUs. This absence of measured data means the database cannot directly quantify its wins in any specific workload. The wins for the RTX PRO 4500 are therefore structural, based on its specification sheet rather than measured results.

In terms of direct benchmark wins, the A1000 has three recorded tests. It scores 969 in 3DMark Steel Nomad DX12, 52078 in Geekbench OpenCL, and 49574 in Geekbench Vulkan. These are the only measurable victories in the current database entry. The RTX PRO 4500 has zero recorded wins because no benchmark results exist for it yet.

The use-case split is clear from the available data. The A1000 wins in any scenario where measured performance is required, simply because it has measurements. The RTX PRO 4500 wins in scenarios where the specification sheet matters more, particularly memory capacity, bandwidth, and raw compute resources. Any workload that demands more than 8 GB of video memory falls outside the A1000's capability, while the RTX PRO 4500 offers 32 GB.

Architecture Differences

The two cards come from different foundries and process nodes. The RTX A1000 uses the GA107 chip on an 8 nm process from Samsung. It contains 8,700 million transistors on a 200 mm² die, giving a transistor density of 43.5 million per mm². The RTX PRO 4500 Blackwell Workstation uses the GB203 chip on a 5 nm process from TSMC. That chip packs 45,600 million transistors onto a 378 mm² die, a density of 120.6 million per mm². The transistor count difference is substantial, with the Blackwell chip holding over five times more transistors.

The architecture generation differs as well. The A1000 belongs to the Workstation Ampere generation, while the RTX PRO 4500 belongs to the Blackwell PRO W generation. The A1000's predecessor is Quadro Turing, and its successor is Workstation Ada. The RTX PRO 4500's predecessor is Workstation Ada, and it has no listed successor. This places the two cards on opposite sides of the Ada generation.

Core configuration differences are pronounced. The A1000 has 2304 shading units, 72 texture mapping units, and 32 raster output units. The RTX PRO 4500 has 10496 shading units, 328 TMUs, and 112 ROPs. The Blackwell card has roughly 4.5 times the shading units, over 4.5 times the TMUs, and 3.5 times the ROPs. Ray tracing cores number 18 on the A1000 versus 82 on the RTX PRO 4500. Tensor cores follow the same pattern, with 72 on the A1000 and 328 on the RTX PRO 4500.

Clock behavior also differs. The A1000 runs at a base clock of 727 MHz and boosts to 1462 MHz. The RTX PRO 4500 has a base clock of 1635 MHz and boosts to 2407 MHz. The memory clocks are 1500 MHz with 12 Gbps effective on the A1000, versus 1750 MHz with 28 Gbps effective on the RTX PRO 4500. The Blackwell card's boost clock is over 64 percent higher than the A1000's boost clock.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries comparing these two cards. The headToHeadBenchmarks field is empty. This means no single test result pits the A1000 against the RTX PRO 4500 in a side-by-side measurement. The comparison must instead rely on the A1000's absolute scores and the RTX PRO 4500's specification-derived capabilities.

The A1000's best recorded score is in Geekbench OpenCL at 52078. Its Geekbench Vulkan score is 49574, which is 2504 points lower, a drop of roughly 4.8 percent. The 3DMark Steel Nomad DX12 score of 969 is far lower in absolute terms, but that test measures a different workload and uses a different scale. The A1000's average benchmark score of 34207 sits between its OpenCL and Vulkan results, indicating the 3DMark result pulls the average down.

For the RTX PRO 4500, the absence of benchmark scores means no direct numerical comparison exists. The data shows its FP32 compute is listed at 50.53 TFLOPS, its texture rate at 789.5 GTexel/s, and its pixel rate at 269.6 GPixel/s. The A1000 lists FP32 at 6.737 TFLOPS, texture rate at 105.3 GTexel/s, and pixel rate at 46.78 GPixel/s. These are specification-level figures, not benchmark results, but they indicate the RTX PRO 4500 has roughly 7.5 times the FP32 throughput, 7.5 times the texture fill rate, and 5.8 times the pixel fill rate.

Memory bandwidth shows a similar gap. The A1000 delivers 192.0 GB/s over a 128 bit bus with GDDR6 memory. The RTX PRO 4500 delivers 896.0 GB/s over a 256 bit bus with GDDR7 memory. That is 4.7 times the bandwidth, which directly affects workloads that stream large datasets. The A1000's 8 GB capacity versus the RTX PRO 4500's 32 GB capacity further separates them in memory-bound tasks.

Specification Differences

The physical dimensions differ. The A1000 measures 163 mm in length and 69 mm in height, with no width listed. The RTX PRO 4500 measures 267 mm in length, 111 mm in height, and 40 mm in width. The Blackwell card is substantially larger in every dimension. Slot width differs too, with the A1000 being single-slot and the RTX PRO 4500 being dual-slot.

Power requirements diverge significantly. The A1000 has a TDP of 50 W and requires no power connectors. Its suggested PSU is 250 W. The RTX PRO 4500 has a TDP of 200 W and requires a single 16-pin connector. Its suggested PSU is 550 W. The A1000 draws its power entirely from the PCIe slot, while the RTX PRO 4500 needs a dedicated power cable.

The bus interface differs. The A1000 uses PCIe 4.0 x8, while the RTX PRO 4500 uses PCIe 5.0 x16. The Blackwell card has double the lane count and a newer PCIe generation, which affects host transfer speeds for data-heavy workloads. Display outputs also differ, with the A1000 providing 4x mini-DisplayPort 1.4a and the RTX PRO 4500 providing 4x DisplayPort 2.1b. The newer DisplayPort version supports higher resolutions and refresh rates.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical. The release dates differ by roughly 11 months, with the A1000 releasing on 2024-04-15 and the RTX PRO 4500 releasing on 2025-03-17. Both are listed as Active in production status.

Memory type and bus width separate them cleanly. The A1000 uses 8 GB of GDDR6 on a 128 bit bus. The RTX PRO 4500 uses 32 GB of GDDR7 on a 256 bit bus. The memory clock is 1500 MHz (12 Gbps effective) versus 1750 MHz (28 Gbps effective). The RTX PRO 4500 has 4 times the capacity, double the bus width, and a newer memory standard.

FAQ

Q: Which card has more shading units?

A: The NVIDIA RTX PRO 4500 Blackwell Workstation has 10496 shading units. The NVIDIA RTX A1000 has 2304 shading units. The Blackwell card holds roughly 4.5 times as many.

Q: What is the memory capacity difference?

A: The RTX A1000 has 8 GB of GDDR6 memory. The RTX PRO 4500 has 32 GB of GDDR7 memory, which is four times the capacity. The bus width also doubles from 128 bit to 256 bit.

Q: How do the power requirements compare?

A: The RTX A1000 has a 50 W TDP and requires no power connectors, with a suggested PSU of 250 W. The RTX PRO 4500 has a 200 W TDP and requires a single 16-pin connector, with a suggested PSU of 550 W.

Q: Which card has a higher boost clock?

A: The RTX PRO 4500 boosts to 2407 MHz, while the RTX A1000 boosts to 1462 MHz. The Blackwell card's boost clock is higher by 945 MHz.

Q: Are the API feature levels the same?

A: Yes. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. There is no difference in the listed API support.

Q: Which card has recorded benchmark scores?

A: Only the RTX A1000 has recorded benchmark scores in the database. It scores 969 in 3DMark Steel Nomad DX12, 52078 in Geekbench OpenCL, and 49574 in Geekbench Vulkan. The RTX PRO 4500 has no recorded benchmark scores, with an average of 0.