NVIDIA RTX A4500 vs NVIDIA TITAN X Pascal Comparison

The NVIDIA RTX A4500 and NVIDIA TITAN X Pascal represent two distinct eras of GPU design, with the former built on the Ampere architecture for professional workstations and the latter a Pascal-based enthusiast card from the GeForce 10 generation. The benchmark data shows a clear generational gap: the RTX A4500 secures 2 wins out of 2 head-to-head comparisons, with an average benchmark score of 91,671 compared to the TITAN X Pascal’s 72,098. While both cards are end-of-life products, the RTX A4500 delivers significantly higher raw compute performance, particularly in compute-oriented workloads, making it the more capable option for modern professional tasks despite its older release date in late 2021 versus the TITAN X’s 2016 debut.

Where Each One Wins

The RTX A4500 dominates every shared benchmark in this comparison, making it the unequivocal winner for compute-heavy applications. In Geekbench OpenCL, the A4500 scores 141,837 against the TITAN X Pascal’s 66,696, a staggering 112.7% advantage. This massive lead stems from the A4500’s 7,168 shading units, 224 tensor cores, and 56 RT cores, which enable far higher parallel throughput than the TITAN X’s 3,584 shading units and lack of dedicated tensor or RT hardware. For users running GPU-accelerated rendering, scientific simulations, or machine learning inference, the A4500’s FP32 performance of 23.65 TFLOPS versus the TITAN X’s 10.97 TFLOPS means it can process roughly twice as many floating-point operations per second, directly translating to faster completion times for compute-bound workloads.

The TITAN X Pascal, however, retains a niche advantage in legacy compatibility and raw clock speed. Its base clock of 1417 MHz and boost clock of 1531 MHz are higher than the A4500’s 1050 MHz base and 1650 MHz boost, but this does not translate into benchmark wins because the A4500 compensates with far more cores and a newer architecture. The TITAN X’s 12 GB of GDDR5X memory on a 384-bit bus provides 480.4 GB/s of bandwidth, which is respectable, but the A4500’s 20 GB of GDDR6 on a 320-bit bus delivers 640.0 GB/s, offering both more capacity and higher bandwidth. For workloads that fit within 12 GB, the TITAN X can still function adequately, but any task exceeding that capacity will either fail or spill to system memory, whereas the A4500’s 20 GB buffer handles larger datasets without such penalties.

In Vulkan workloads, the A4500 again wins decisively, scoring 129,980 versus the TITAN X’s 77,499, a 67.7% margin. This suggests the A4500 is better suited for modern graphics APIs that leverage asynchronous compute and explicit multi-GPU features. The TITAN X supports DirectX 12 (12_1) and Vulkan 1.4, but its Pascal architecture lacks the hardware-accelerated ray tracing and variable-rate shading features found in the A4500’s DirectX 12 Ultimate (12_2) support. For users who prioritize gaming-style workloads or older DirectX 11 titles, the TITAN X’s higher base clock might offer competitive frame rates, but the benchmark data does not include any gaming tests to substantiate this.

The Verdict

The data overwhelmingly favors the NVIDIA RTX A4500 for any professional or compute-oriented use case. With a 27.1% higher average benchmark score (91,671 vs 72,098) and wins in both OpenCL and Vulkan tests, the A4500 is the clear choice for users running GPU-accelerated applications that leverage FP32 compute, ray tracing, or tensor operations. The A4500’s 20 GB memory capacity is also a decisive factor for workloads like 8K video editing, large-scale 3D scene rendering, or training deep learning models that require substantial VRAM. Its 93rd percentile ranking among all GPUs, compared to the TITAN X’s 91st, reinforces its position as a more capable overall part, even though both are end-of-life products.

The TITAN X Pascal, despite being the older card, still holds relevance for users with legacy software that does not benefit from newer architecture features. Its 12 GB memory and 480.4 GB/s bandwidth are sufficient for many 1080p and 1440p professional tasks, and its higher base clock of 1417 MHz can provide snappy responsiveness in lightly threaded applications. However, the data shows no benchmark where the TITAN X wins against the A4500, and its 250 W TDP is higher than the A4500’s 200 W, meaning it consumes more power while delivering less performance. For any new purchase, the RTX A4500 is the rational choice, but for users who already own a TITAN X and run software that does not require the A4500’s features, upgrading is not justified by the benchmark results alone.

Head-to-Head Benchmarks

The largest margin of victory comes in Geekbench OpenCL, where the RTX A4500 scores 141,837 against the TITAN X Pascal’s 66,696, a 112.7% difference. This test measures raw compute throughput across a wide range of workloads, including integer and floating-point operations. The A4500’s 23.65 TFLOPS FP32 performance is more than double the TITAN X’s 10.97 TFLOPS, and its 224 tensor cores provide additional acceleration for AI-related tasks that the TITAN X cannot utilize at all. The A4500 also benefits from 28,300 million transistors on a 628 mm² die, versus 11,800 million transistors on a 471 mm² die, giving it more than twice the transistor count for parallel work.

In Geekbench Vulkan, the A4500 wins by a smaller but still substantial margin, scoring 129,980 versus 77,499, a 67.7% difference. This test evaluates graphics API performance, including draw call overhead, memory bandwidth utilization, and shader compilation. The A4500’s 56 RT cores and 224 tensor cores allow it to offload specific workloads, while its 640.0 GB/s memory bandwidth outpaces the TITAN X’s 480.4 GB/s. The TITAN X’s 384-bit memory bus is wider than the A4500’s 320-bit bus, but the A4500’s faster GDDR6 memory at 16 Gbps effective speed compensates, resulting in higher overall bandwidth.

The only benchmark where the TITAN X comes close is in terms of pixel and texture rates. The A4500 achieves 158.4 GPixel/s and 369.6 GTexel/s, while the TITAN X achieves 147.0 GPixel/s and 342.9 GTexel/s. These differences are modest (7.8% and 7.8%, respectively), but they do not appear in the head-to-head benchmark list, which only includes compute tests. For pure rasterization tasks that are fill-rate limited, the TITAN X is nearly competitive, but the A4500 still holds a slight edge, and its superior compute performance makes it the better all-around card.

FAQ

Q: Which card has higher FP32 performance?

A: The NVIDIA RTX A4500 delivers 23.65 TFLOPS FP32, while the NVIDIA TITAN X Pascal delivers 10.97 TFLOPS, making the A4500 more than twice as fast in single-precision compute.

Q: How much memory bandwidth do these cards offer?

A: The RTX A4500 provides 640.0 GB/s over a 320-bit bus, while the TITAN X Pascal provides 480.4 GB/s over a 384-bit bus. The A4500’s GDDR6 memory at 16 Gbps effective speed gives it higher bandwidth despite a narrower bus.

Q: Does the TITAN X Pascal support ray tracing?

A: No. The TITAN X Pascal has no RT cores (listed as null), whereas the RTX A4500 includes 56 RT cores, enabling hardware-accelerated ray tracing.

Q: What is the memory capacity difference?

A: The RTX A4500 has 20 GB of GDDR6 memory, while the TITAN X Pascal has 12 GB of GDDR5X memory, giving the A4500 8 GB more capacity for large datasets.

Q: Which card has a higher benchmark percentile ranking?

A: The RTX A4500 ranks in the 93rd percentile among all GPUs, while the TITAN X Pascal ranks in the 91st percentile, indicating the A4500 outperforms a larger share of the GPU population.

Q: How do their power requirements compare?

A: The RTX A4500 has a TDP of 200 W and requires a 550 W suggested PSU, while the TITAN X Pascal has a TDP of 250 W and requires a 600 W suggested PSU, meaning the A4500 is more power-efficient.

Architecture Differences

The NVIDIA RTX A4500 is built on the GA102 chip using Ampere architecture, fabricated on an 8 nm process by Samsung, with 28,300 million transistors on a 628 mm² die. In contrast, the NVIDIA TITAN X Pascal uses the GP102 chip with Pascal architecture, fabricated on a 16 nm process by TSMC, with 11,800 million transistors on a 471 mm² die. The A4500’s transistor density of 45.1M per mm² is significantly higher than the TITAN X’s 25.1M per mm², reflecting the newer manufacturing process and architectural improvements.

The A4500 features 7,168 shading units, 224 TMUs, and 96 ROPs, alongside 56 RT cores and 224 tensor cores, which are absent from the TITAN X Pascal (both listed as null). The TITAN X has 3,584 shading units, 224 TMUs, and 96 ROPs, meaning the A4500 has exactly twice the shader count. The A4500’s FP16 performance matches its FP32 at 23.65 TFLOPS (1:1 ratio), while the TITAN X’s FP16 is severely limited at 171.5 GFLOPS (1:64 ratio), making the A4500 vastly superior for mixed-precision workloads.

Memory architecture also differs substantially. The A4500 uses 20 GB of GDDR6 on a 320-bit bus with 640.0 GB/s bandwidth, while the TITAN X uses 12 GB of GDDR5X on a 384-bit bus with 480.4 GB/s bandwidth. The A4500 supports PCIe 4.0 x16, whereas the TITAN X is limited to PCIe 3.0 x16, doubling the potential host-to-device transfer bandwidth for large data sets. Display outputs differ as well: the A4500 offers 4x DisplayPort 1.4a, while the TITAN X offers 1x DVI, 1x HDMI 2.0, and 3x DisplayPort 1.4a, giving the A4500 a cleaner multi-monitor professional setup without legacy ports.

API support is another differentiator. The A4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the TITAN X supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. The A4500’s DirectX 12 Ultimate certification ensures compatibility with the latest features like ray tracing and mesh shaders, which the TITAN X cannot accelerate in hardware. Power delivery also reflects the generational gap: the A4500 uses a single 8-pin connector with a 200 W TDP, while the TITAN X uses a 6-pin plus 8-pin configuration with a 250 W TDP, making the A4500 more efficient per watt. The A4500’s release date of 2021-11-22 versus the TITAN X’s 2016-08-01 shows a five-year gap, during which NVIDIA moved from the GeForce 10 generation to the Workstation Ampere line, with the TITAN X listing its predecessor as GeForce 900 and successor as GeForce 20, while the A4500 lists its predecessor as Quadro Turing and successor as Workstation Ada.