NVIDIA RTX A4500 Mobile vs NVIDIA TITAN X Pascal Comparison

The Verdict

The data splits these two NVIDIA parts almost perfectly down the middle, with each winning exactly one of the two head-to-head benchmark comparisons. The RTX A4500 Mobile takes the Geekbench OpenCL test decisively, scoring 105,307 against the TITAN X Pascal’s 66,696, a 57.9% advantage. However, the TITAN X Pascal edges ahead in Geekbench Vulkan with 77,499 versus 76,960, a slim 0.7% margin. This is not a case of one card being universally faster; it is a case of two very different architectures excelling under different workloads. The RTX A4500 Mobile’s aggregate benchmark score of 91,134 places it in the 93rd percentile of all GPUs, while the TITAN X Pascal’s 72,098 sits in the 91st percentile. The average score gap of roughly 26% favors the mobile workstation part, but the Vulkan result proves the older card still has fight left in it. For compute-heavy OpenCL tasks, the A4500 Mobile is the clear choice; for Vulkan-based rendering or gaming, the TITAN X Pascal holds its ground. The A4500 Mobile is also the more modern and feature-rich option, with ray tracing and tensor cores that the Pascal card lacks entirely.

Architecture Differences

The two GPUs come from different fabrication generations and process nodes. The RTX A4500 Mobile uses the GA104 chip built on Ampere architecture, manufactured by Samsung on an 8 nm process. It packs 17,400 million transistors into a 392 mm² die, yielding a transistor density of 44.4 million per mm². The TITAN X Pascal, in contrast, uses the GP102 chip on the older Pascal architecture, fabricated by TSMC on a 16 nm node. It contains 11,800 million transistors spread across a larger 471 mm² die, giving a lower density of 25.1 million per mm². The Ampere chip is denser and more modern, while the Pascal chip is physically larger but less packed. This architectural shift explains many of the performance differences.

The A4500 Mobile includes 46 ray tracing cores and 184 tensor cores, hardware that is entirely absent from the TITAN X Pascal. These enable hardware-accelerated ray tracing and AI-based tensor operations. The Pascal card has no such dedicated units, meaning any ray tracing or tensor work falls back to standard shader processing. The shading unit count also differs dramatically: the A4500 Mobile has 5,888 shading units, while the TITAN X Pascal has only 3,584. However, the TITAN X Pascal has more texture mapping units (224 vs 184) and the same number of raster output units (96). The A4500 Mobile’s FP32 throughput is 17.66 TFLOPS, compared to the TITAN X Pascal’s 10.97 TFLOPS. The FP16 story is even more lopsided: the A4500 Mobile achieves 17.66 TFLOPS at a 1:1 ratio, while the TITAN X Pascal manages only 171.5 GFLOPS at a 1:64 ratio. That is a fundamental difference in compute philosophy, with Ampere treating FP16 as a first-class citizen and Pascal relegating it to a minor feature.

Head-to-Head Benchmarks

The Geekbench OpenCL result is the single largest performance gap in this comparison. The RTX A4500 Mobile scores 105,307, which is 57.9% higher than the TITAN X Pascal’s 66,696. This is a massive margin that aligns with the raw compute specifications: the A4500 Mobile has 61% more shading units (5,888 vs 3,584) and 61% higher FP32 throughput (17.66 vs 10.97 TFLOPS). The OpenCL benchmark appears to scale well with shader count and raw FP32 performance, which is why the Ampere part dominates so thoroughly. The A4500 Mobile’s 512.0 GB/s of memory bandwidth also exceeds the TITAN X Pascal’s 480.4 GB/s, though the difference is modest. In this test, the mobile workstation GPU is simply in a different class.

The Vulkan benchmark tells a much closer story. The TITAN X Pascal scores 77,499, narrowly beating the A4500 Mobile’s 76,960. The 0.7% margin is within typical run-to-run variance, but the winner is the older Pascal card. This is surprising given the A4500 Mobile’s newer architecture and higher raw specs. The TITAN X Pascal has a higher base clock (1,417 MHz vs 930 MHz) and a slightly higher boost clock (1,531 MHz vs 1,500 MHz), which may help in latency-sensitive Vulkan workloads. Its texture rate of 342.9 GTexel/s is also significantly higher than the A4500 Mobile’s 276.0 GTexel/s, thanks to its 224 TMUs. The pixel rates are nearly identical (147.0 vs 144.0 GPixel/s), suggesting rasterization is not the deciding factor. The Vulkan result may reflect driver maturity for the older architecture or the TITAN X Pascal’s desktop-class power envelope of 250 W versus the A4500 Mobile’s 140 W mobile TDP. The data does not specify the cause, only the outcome.

Specification Differences

The two cards differ in nearly every measurable specification except for ROP count and OpenGL version. The RTX A4500 Mobile uses GDDR6 memory with 16 GB capacity on a 256-bit bus, achieving 512.0 GB/s bandwidth. The TITAN X Pascal uses GDDR5X with 12 GB on a wider 384-bit bus, achieving 480.4 GB/s. The A4500 Mobile has more memory and higher bandwidth despite the narrower bus. The A4500 Mobile’s base clock is 930 MHz with a boost of 1,500 MHz, while the TITAN X Pascal runs at 1,417 MHz base and 1,531 MHz boost. The TITAN X Pascal has higher clocks but fewer cores. The A4500 Mobile draws 140 W with no external power connectors, while the TITAN X Pascal draws 250 W and requires both a 6-pin and an 8-pin power connector, with a suggested 600 W power supply. The bus interface differs as well: PCIe 4.0 x16 on the A4500 Mobile versus PCIe 3.0 x16 on the TITAN X Pascal. Display outputs are also distinct: the A4500 Mobile is described as “Portable Device Dependent,” while the TITAN X Pascal offers 1x DVI, 1x HDMI 2.0, and 3x DisplayPort 1.4a. The TITAN X Pascal is a dual-slot card measuring 267 mm in length, 112 mm in height, and 40 mm in width; the A4500 Mobile has no listed dimensions. The A4500 Mobile supports DirectX 12 Ultimate (12_2), while the TITAN X Pascal supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The A4500 Mobile was released in March 2022, while the TITAN X Pascal launched in August 2016. The TITAN X Pascal had a launch MSRP of 1,199 USD.

FAQ

Q: Which GPU is faster in OpenCL compute workloads?

A: The NVIDIA RTX A4500 Mobile is significantly faster, scoring 105,307 in Geekbench OpenCL compared to the TITAN X Pascal’s 66,696. This represents a 57.9% performance advantage.

Q: Does the older TITAN X Pascal win any benchmarks?

A: Yes, the TITAN X Pascal wins the Geekbench Vulkan test with a score of 77,499, edging out the RTX A4500 Mobile’s 76,960 by a slim 0.7% margin.

Q: What architectural features does the RTX A4500 Mobile have that the TITAN X Pascal lacks?

A: The RTX A4500 Mobile includes 46 ray tracing cores and 184 tensor cores, both of which are entirely absent from the TITAN X Pascal. The A4500 Mobile also uses a newer 8 nm process, while the TITAN X Pascal uses a 16 nm process.

Q: How do the memory configurations compare?

A: The RTX A4500 Mobile has 16 GB of GDDR6 memory on a 256-bit bus with 512.0 GB/s bandwidth. The TITAN X Pascal has 12 GB of GDDR5X on a 384-bit bus with 480.4 GB/s bandwidth.

Q: Which card has higher clock speeds?

A: The TITAN X Pascal has higher clocks, with a base of 1,417 MHz and boost of 1,531 MHz. The RTX A4500 Mobile has a base of 930 MHz and boost of 1,500 MHz.

Q: What is the power consumption difference?

A: The RTX A4500 Mobile has a TDP of 140 W with no external power connectors, while the TITAN X Pascal has a TDP of 250 W and requires a 6-pin and 8-pin power connector.

Where Each One Wins

The RTX A4500 Mobile wins in raw compute throughput and modern feature support. Its 17.66 TFLOPS FP32 and FP16 performance is 61% higher than the TITAN X Pascal’s 10.97 TFLOPS FP32. The OpenCL benchmark shows a 57.9% lead, making it the obvious choice for compute-heavy applications like scientific simulation, machine learning inference, or any workload that leverages OpenCL. The presence of tensor cores and ray tracing cores opens up AI acceleration and real-time ray tracing that the TITAN X Pascal simply cannot do in hardware. Its 16 GB of memory and 512.0 GB/s bandwidth provide more capacity and higher throughput for large datasets. The 140 W power draw means it can fit in more power-constrained environments, especially mobile workstations. Its 93rd percentile ranking across all GPUs places it above the TITAN X Pascal’s 91st percentile.

The TITAN X Pascal wins in Vulkan-based workloads, as demonstrated by its 77,499 score versus the A4500 Mobile’s 76,960. Its higher base and boost clocks, combined with 224 TMUs, give it an edge in texture-heavy rendering. The 342.9 GTexel/s texture rate is 24% higher than the A4500 Mobile’s 276.0 GTexel/s. The Pascal card also offers a wider 384-bit memory bus, which can help in certain bandwidth-latency-sensitive scenarios despite the lower overall bandwidth. Its dual-slot desktop form factor with 3x DisplayPort 1.4a, 1x HDMI 2.0, and 1x DVI output makes it more flexible for multi-monitor desktop setups. The higher 250 W power budget allows for more sustained performance in a desktop chassis with adequate cooling. For users running Vulkan APIs, particularly in gaming or real-time graphics, the TITAN X Pascal’s narrow victory suggests it remains a viable option despite being six years older. The data shows a split decision: compute workloads favor the Ampere mobile part, while Vulkan graphics favor the Pascal desktop part.