NVIDIA RTX A1000 vs NVIDIA RTX PRO 4500 Blackwell Server Comparison

Where Each One Wins

The recorded data splits these two NVIDIA workstation cards into entirely different performance classes, though one of them arrives without any measured benchmark scores. The RTX A1000 carries three recorded benchmark results: a 3DMark Steel Nomad DX12 score of 969, a Geekbench OpenCL score of 52078, and a Geekbench Vulkan score of 49574. Its average benchmark score across all recorded tests sits at 34207, placing it in the 79th percentile of all GPUs in the database. The RTX PRO 4500 Blackwell Server, by contrast, has no benchmark entries, no average score, and sits at the 50th percentile with a zero score. That makes a direct win/loss comparison impossible; the A1000 is the only one with measured results, while the PRO 4500 must be assessed on architecture and specifications alone.

The A1000 wins in the category of having proven, quantifiable performance. Its nearest rivals in the database are the NVIDIA RTX A2000 12 GB with an average score of 34154 (0.2% behind), the AMD Radeon RX 560 XT with 34133 (0.2% behind), the NVIDIA TITAN V with 34355 (0.4% ahead), and the AMD Radeon RX 480 with 33997 (0.6% behind). The A1000 essentially trades blows with these cards, sitting within a fraction of a percent of each. The RTX PRO 4500 wins in every architectural and specification category where numbers exist: it has more shading units, more memory, a wider bus, higher clocks, and a newer process node. But without benchmark data, its wins are theoretical, not measured.

For use-case split, the A1000 serves as a compact, low-power workstation card for professional visualization and entry-level compute, drawing 50 W with no power connectors and fitting a 163 mm length. The PRO 4500 targets server deployments with a 165 W draw, a 16-pin connector, no display outputs, and a 267 mm length. The data indicates the A1000 is for desktop workstations needing display output (four mini-DisplayPort 1.4a connectors), while the PRO 4500 is for headless server environments.

Architecture Differences

The two cards come from different foundries, nodes, and architectures. The A1000 uses the GA107 chip on Samsung's 8 nm process, built on the Ampere architecture, and belongs to the Workstation Ampere (Ax000) generation. The PRO 4500 uses the GB203 chip on TSMC's 5 nm process, built on Blackwell 2.0, and belongs to the Server Blackwell (Bxx) generation. The transistor counts differ massively: the A1000 packs 8,700 million transistors on a 200 mm² die, giving a density of 43.5 million transistors per square millimeter. The PRO 4500 holds 45,600 million transistors on a 378 mm² die, with a density of 120.6 million per square millimeter. That is over five times the transistor count on a die less than twice the size, reflecting the denser 5 nm process.

The A1000 uses GDDR6 memory with 8 GB capacity, a 128-bit bus, and 192.0 GB/s of bandwidth. The PRO 4500 uses GDDR7 memory with 32 GB capacity, a 256-bit bus, and 800.3 GB/s of bandwidth. Memory clock rates follow the same gap: the A1000 runs at 1500 MHz (12 Gbps effective), while the PRO 4500 runs at 1563 MHz (25 Gbps effective). The PRO 4500 has four times the memory capacity and over four times the bandwidth.

Compute resources also diverge sharply. The A1000 has 2304 shading units, 72 texture mapping units, 32 ROPs, 18 RT cores, and 72 tensor cores. The PRO 4500 has 10496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. The PRO 4500 delivers 50.70 TFLOPS FP32 and FP16 (1:1 ratio), while the A1000 delivers 6.737 TFLOPS in both. Pixel rate is 270.5 GPixel/s versus 46.78 GPixel/s, and texture rate is 792.1 GTexel/s versus 105.3 GTexel/s. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The bus interface differs: the A1000 uses PCIe 4.0 x8, while the PRO 4500 uses PCIe 5.0 x16. The A1000 is a single-slot card with no power connectors and a suggested PSU of 250 W. The PRO 4500 is also single-slot but requires one 16-pin connector and a suggested PSU of 450 W. The A1000 has four mini-DisplayPort 1.4a outputs; the PRO 4500 has no display outputs at all.

Head-to-Head Benchmarks

The head-to-head benchmark list in the database is empty. There are no recorded tests where both cards ran the same workload, and the wins count for each card is zero. This is not a case of one card dominating; it is a case of missing data. The A1000 has three standalone scores, and the PRO 4500 has none. Any comparison must therefore rely on the A1000's measured results against its nearest rivals, plus the specification gap between the two cards.

Looking at the A1000's nearest rivals, the data shows it sits in a tight cluster. The NVIDIA RTX A2000 12 GB scores 34154, which is 0.2% behind the A1000's 34207 average. The AMD Radeon RX 560 XT scores 34133, also 0.2% behind. The NVIDIA TITAN V scores 34355, which is 0.4% ahead of the A1000. The AMD Radeon RX 480 scores 33997, 0.6% behind. These deltas are small enough that the A1000 is effectively performance-equivalent to all four cards in average terms, though individual workloads could shift the order.

The A1000's individual scores show its strengths. The Geekbench OpenCL score of 52078 is higher than its Vulkan score of 49574, indicating OpenCL compute performance is roughly 5% stronger in that test. The 3DMark Steel Nomad DX12 score of 969 is a standalone figure with no direct comparison available in the pack. The PRO 4500 has no equivalent numbers, so no head-to-head walkthrough is possible. The specification comparison, however, suggests the PRO 4500 would be dramatically faster in every compute and graphics metric: 7.5 times the FP32 throughput, 4.2 times the bandwidth, 4.6 times the shading units, and 4.6 times the tensor cores.

The only area where the A1000 could plausibly win is power efficiency or physical size, since it draws 50 W versus 165 W and is shorter at 163 mm versus 267 mm. But no efficiency benchmark exists in the data, so that remains an inference from the TDP figures, not a measured result.

FAQ

Q: Which card has a higher average benchmark score?

A: The RTX A1000 has an average benchmark score of 34207 across its recorded tests. The RTX PRO 4500 Blackwell Server has an average benchmark score of 0, with no recorded benchmark entries.

Q: How does the RTX A1000 compare to its nearest rivals in the database?

A: The A1000's average score of 34207 puts it 0.2% ahead of the NVIDIA RTX A2000 12 GB (34154) and the AMD Radeon RX 560 XT (34133), 0.4% behind the NVIDIA TITAN V (34355), and 0.6% ahead of the AMD Radeon RX 480 (33997).

Q: What are the memory specifications for each card?

A: The RTX A1000 has 8 GB of GDDR6 memory on a 128-bit bus with 192.0 GB/s bandwidth. The RTX PRO 4500 has 32 GB of GDDR7 memory on a 256-bit bus with 800.3 GB/s bandwidth.

Q: Do both cards support the same graphics APIs?

A: Yes, both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, according to the recorded data.

Q: Which card has display outputs?

A: The RTX A1000 has four mini-DisplayPort 1.4a outputs. The RTX PRO 4500 has no display outputs, indicating it is intended for headless server use.

Q: What are the power requirements for each card?

A: The RTX A1000 has a TDP of 50 W, uses no power connectors, and requires a suggested PSU of 250 W. The RTX PRO 4500 has a TDP of 165 W, uses one 16-pin connector, and requires a suggested PSU of 450 W.

Specification Differences

The following fields differ between the two cards according to the database:

• Chip: GA107 versus GB203
• Architecture: Ampere versus Blackwell 2.0
• Generation: Workstation Ampere (Ax000) versus Server Blackwell (Bxx)
• Process node: 8 nm (Samsung) versus 5 nm (TSMC)
• Transistors: 8,700 million versus 45,600 million
• Die size: 200 mm² versus 378 mm²
• Transistor density: 43.5M per mm² versus 120.6M per mm²
• Base clock: 727 MHz versus 1215 MHz
• Boost clock: 1462 MHz versus 2415 MHz
• Memory clock: 1500 MHz 12 Gbps effective versus 1563 MHz 25 Gbps effective
• Memory size: 8 GB versus 32 GB
• Memory type: GDDR6 versus GDDR7
• Memory bus width: 128 bit versus 256 bit
• Memory bandwidth: 192.0 GB/s versus 800.3 GB/s
• Shading units: 2304 versus 10496
• Texture mapping units: 72 versus 328
• ROP units: 32 versus 112
• RT cores: 18 versus 82
• Tensor cores: 72 versus 328
• Pixel rate: 46.78 GPixel/s versus 270.5 GPixel/s
• Texture rate: 105.3 GTexel/s versus 792.1 GTexel/s
• FP32 performance: 6.737 TFLOPS versus 50.70 TFLOPS
• FP16 performance: 6.737 TFLOPS (1:1) versus 50.70 TFLOPS (1:1)
• TDP: 50 W versus 165 W
• Power connectors: None versus 1x 16-pin
• Suggested PSU: 250 W versus 450 W
• Bus interface: PCIe 4.0 x8 versus PCIe 5.0 x16
• Display outputs: 4x mini-DisplayPort 1.4a versus No outputs
• Dimensions: 163 mm length, 69 mm height versus 267 mm length, 111 mm height, 40 mm width
• Release date: 2024-04-15 versus 2026-03-16
• Predecessor: Quadro Turing versus Server Hopper
• Successor: Workstation Ada versus Server Rubin

The Verdict

The data paints a clear split. The RTX A1000 is a measured, active, low-power workstation card with a 79th percentile standing and an average benchmark score of 34207, which places it within 0.6% of several established rivals. It is suitable for tasks requiring display output, given its four mini-DisplayPort 1.4a connectors, and its 50 W draw with no power connectors makes it easy to install in modest systems. Its performance class is entry-level professional, competitive with cards like the RTX A2000 12 GB and the TITAN V, though slightly behind the latter.

The RTX PRO 4500 Blackwell Server is a different animal entirely. It has no measured benchmarks, so its performance cannot be stated from the data. What the specifications show is a server-oriented card with 32 GB of GDDR7 memory, 800.3 GB/s of bandwidth, 50.70 TFLOPS FP32, and 10496 shading units. It requires a 16-pin power connector, a 450 W suggested PSU, and has no display outputs. It belongs to the Server Blackwell generation and targets headless compute environments. Its 5 nm TSMC process and 45,600 million transistors indicate a far more advanced design than the A1000's 8 nm Samsung process with 8,700 million transistors.

Who should pick which comes down to the role. The A1000 is the choice for a workstation that needs to drive displays, run OpenCL or Vulkan workloads with measured scores of 52078 and 49574 respectively, and stay within a 50 W power envelope. The PRO 4500 is the choice for a server installation where display output is irrelevant, memory capacity and bandwidth are critical, and the 165 W TDP can be accommodated with a 16-pin connector. The PRO 4500's 32 GB of GDDR7 memory and 800.3 GB/s bandwidth dwarf the A1000's 8 GB and 192.0 GB/s, and its FP32 throughput is 7.5 times higher on paper. But without benchmark scores, that advantage remains a specification-level projection, not a measured outcome. The database records no head-to-head tests, so any direct performance comparison between these two cards is unsupported by the available data.