NVIDIA RTX 6000D vs NVIDIA RTX A4500 Comparison

NVIDIA’s RTX 6000D and RTX A4500 represent two distinct generations of professional workstation graphics. The RTX 6000D, built on the Blackwell 2.0 architecture and GB202 chip, is a current-generation powerhouse, while the RTX A4500, based on the older Ampere architecture and GA102 chip, has reached end-of-life status. The recorded data shows a substantial performance gap, driven by fundamental differences in chip design, memory subsystem, and processing resources. This analysis breaks down the architectural, benchmark, and specification differences between these two professional GPUs.

FAQ

Q: How much faster is the RTX 6000D than the RTX A4500 in the recorded benchmarks?

A: The RTX 6000D leads by 10.2% in the 3DMark Steel Nomad DX12 test (3522 vs. 3196) and by a much larger 173.8% in Geekbench OpenCL (388405 vs. 141837). Across both recorded tests, the RTX 6000D wins 2 out of 2 comparisons.

Q: What is the memory capacity difference between the two cards?

A: The RTX 6000D features 84 GB of GDDR7 memory on a 448-bit bus, delivering 1.40 TB/s of bandwidth. The RTX A4500 has 20 GB of GDDR6 memory on a 320-bit bus, providing 640.0 GB/s of bandwidth. The RTX 6000D offers 4.2 times the memory capacity and more than double the bandwidth.

Q: Which card has a higher transistor density?

A: The RTX 6000D, fabricated on TSMC's 5 nm process, has a transistor density of 122.9M per mm². The RTX A4500, using Samsung's 8 nm process, has a density of 45.1M per mm². The RTX 6000D integrates 92,200 million transistors on a 750 mm² die, versus 28,300 million on a 628 mm² die for the RTX A4500.

Q: What are the power requirements for each GPU?

A: The RTX 6000D has a 600 W TDP and requires a 1000 W suggested PSU with a single 16-pin connector. The RTX A4500 has a 200 W TDP, a 550 W suggested PSU, and uses a single 8-pin connector. The RTX 6000D consumes three times the power of the RTX A4500.

Q: How do the two cards compare in compute throughput (FP32)?

A: The RTX 6000D delivers 97.04 TFLOPS of FP32 compute, while the RTX A4500 delivers 23.65 TFLOPS. This represents a 4.1x advantage for the RTX 6000D in raw single-precision floating-point performance.

Q: What is the difference in their production status?

A: The RTX 6000D is listed as "Active" production, having been released in 2025. The RTX A4500 is "End-of-life" production, released in 2021, with its successor being the Workstation Ada generation.

Architecture Differences

The architectural gap between the RTX 6000D and RTX A4500 is generational and profound. The RTX 6000D is built on the Blackwell 2.0 architecture using the GB202 chip, fabricated on TSMC's 5 nm process. In contrast, the RTX A4500 uses the Ampere architecture with the GA102 chip, manufactured on Samsung's 8 nm process. This process node difference is a primary driver of the performance disparity, allowing the RTX 6000D to pack 92,200 million transistors into a 750 mm² die, compared to the RTX A4500's 28,300 million transistors on a slightly smaller 628 mm² die. The resulting transistor density is 122.9M per mm² for the RTX 6000D versus 45.1M per mm² for the RTX A4500, a 2.7x density advantage.

Core configuration differences are equally stark. The RTX 6000D features 19,968 shading units, 624 texture mapping units (TMUs), and 192 render output units (ROPs). The RTX A4500 has 7,168 shading units, 224 TMUs, and 96 ROPs. The RTX 6000D also packs 156 ray tracing cores and 624 tensor cores, compared to 56 RT cores and 224 tensor cores on the RTX A4500. These raw resource advantages translate directly into the compute rates: the RTX 6000D achieves 97.04 TFLOPS FP32 and FP16, while the RTX A4500 manages 23.65 TFLOPS in both precision formats. The memory architecture differs as well: the RTX 6000D uses GDDR7 memory with a 448-bit bus, while the RTX A4500 uses GDDR6 with a 320-bit bus. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, but the RTX 6000D offers DisplayPort 2.1b outputs versus the RTX A4500's DisplayPort 1.4a. The bus interface also advances from PCIe 4.0 x16 on the RTX A4500 to PCIe 5.0 x16 on the RTX 6000D.

Head-to-Head Benchmarks

The recorded head-to-head benchmark data shows a clear overall winner in the RTX 6000D, with 2 wins and 0 losses against the RTX A4500. The first test, 3DMark Steel Nomad DX12, is the closer of the two. The RTX 6000D scores 3522, while the RTX A4500 scores 3196, yielding a 10.2% advantage for the newer card. This modest margin suggests that in certain gaming or DirectX 12 workload scenarios, the architectural differences do not translate to an overwhelming lead. However, the RTX 6000D's raw resource advantage still secures the win.

The second benchmark, Geekbench OpenCL, reveals a massive performance gap. The RTX 6000D scores 388405, versus 141837 for the RTX A4500, representing a 173.8% delta in favor of the RTX 6000D. This is more than a 2.7x improvement in raw compute performance, aligning closely with the 4.1x difference in FP32 TFLOPS. The OpenCL test appears to scale heavily with shading core count and memory bandwidth, both of which favor the RTX 6000D. Notably, the RTX A4500 has an additional Geekbench Vulkan score of 129980, but no comparable Vulkan score is recorded for the RTX 6000D, so a direct comparison on that API cannot be made from the data.

When placed in the broader context of the database, the RTX 6000D's average benchmark score of 195964 places it in the 98th percentile of all GPUs. Its nearest rivals include the NVIDIA A100 PCIe 80 GB (207124, 5.4% higher), the NVIDIA RTX 5000 Ada Generation (184664, 6.1% lower), the NVIDIA Tesla V100S PCIe 32 GB (194415, 0.8% lower), and the NVIDIA A100 SXM4 40 GB (187147, 4.7% lower). The RTX A4500, with an average score of 91671, sits in the 93rd percentile, with nearest rivals being the RTX A4500 Mobile (91134, 0.6% higher), AMD Radeon Instinct MI60 (92466, 0.9% higher), NVIDIA Quadro GP100 (87445, 4.8% lower), and AMD Radeon PRO W7600 (87108, 5.2% lower). This data shows that the RTX 6000D competes in a much higher performance tier, sitting near the top of the database, while the RTX A4500 occupies a mid-to-high tier.

Specification Differences

The specification comparison between the two cards reveals differences in nearly every measurable category. The RTX 6000D uses the GB202 chip with Blackwell 2.0 architecture, while the RTX A4500 uses GA102 with Ampere. Process nodes differ at 5 nm (TSMC) versus 8 nm (Samsung). Transistor count is 92,200 million versus 28,300 million, and die size is 750 mm² versus 628 mm². Clock speeds show the RTX 6000D running at a base of 1992 MHz and boost of 2430 MHz, compared to 1050 MHz base and 1650 MHz boost for the RTX A4500. Memory speed is 1560 MHz (25 Gbps effective) for GDDR7 versus 2000 MHz (16 Gbps effective) for GDDR6.

Memory capacity is 84 GB versus 20 GB, with bus widths of 448 bit versus 320 bit, and bandwidth of 1.40 TB/s versus 640.0 GB/s. Core counts diverge sharply: 19,968 shading units, 624 TMUs, 192 ROPs, 156 RT cores, and 624 tensor cores on the RTX 6000D, versus 7,168 shading units, 224 TMUs, 96 ROPs, 56 RT cores, and 224 tensor cores on the RTX A4500. Pixel rate is 466.6 GPixel/s versus 158.4 GPixel/s, and texture rate is 1,516.3 GTexel/s versus 369.6 GTexel/s. FP32 and FP16 compute are both 97.04 TFLOPS versus 23.65 TFLOPS.

Power and physical specifications also differ: TDP is 600 W versus 200 W, power connector is 1x 16-pin versus 1x 8-pin, and suggested PSU is 1000 W versus 550 W. The RTX 6000D measures 304 mm in length and 137 mm in height, while the RTX A4500 is 267 mm long and 112 mm high. Both are dual-slot cards, but the RTX 6000D has a width of 40 mm, while the RTX A4500's width is not recorded. Bus interface is PCIe 5.0 x16 versus PCIe 4.0 x16, and display outputs are 4x DisplayPort 2.1b versus 4x DisplayPort 1.4a. The release dates are 2025 for the RTX 6000D and 2021 for the RTX A4500. The RTX 6000D has a launch MSRP of 8,565 USD; no launch MSRP is recorded for the RTX A4500.

The Verdict

The data positions the NVIDIA RTX 6000D as the overwhelmingly superior performer, winning both recorded head-to-head benchmarks with an average score of 195964 versus 91671 for the RTX A4500. The RTX 6000D is the clear choice for workloads that demand maximum compute throughput, as evidenced by its 173.8% lead in Geekbench OpenCL. Its 84 GB of GDDR7 memory, 448-bit bus, and 1.40 TB/s bandwidth make it suitable for large dataset processing, while the 97.04 TFLOPS FP32 performance handles heavy simulation and rendering tasks. The 98th percentile standing among all GPUs confirms its top-tier status. Its nearest rival, the A100 PCIe 80 GB, is only 5.4% higher in average score, indicating the RTX 6000D sits at the very edge of current workstation performance.

The RTX A4500, while now end-of-life, remains a competent mid-range option with a 93rd percentile ranking. Its 20 GB of GDDR6 memory and 23.65 TFLOPS FP32 are sufficient for lighter professional workloads, and its 200 W TDP makes it far more power-efficient than the 600 W RTX 6000D. However, the benchmark results show it is 10.2% slower in 3DMark Steel Nomad DX12 and 173.8% slower in OpenCL than the RTX 6000D. For users who require the highest level of compute performance, the RTX 6000D is the only choice from this comparison. For those with legacy system constraints or lower power budgets, the RTX A4500 still delivers acceptable performance, but it is clearly outclassed by the newer card in every measured metric. The RTX 6000D's 2-0 record in head-to-head tests leaves no ambiguity about which GPU holds the performance crown in this pair.