AMD Radeon Pro WX 7100 vs NVIDIA GeForce RTX 4090 Mobile Comparison

# NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon Pro WX 7100

The NVIDIA GeForce RTX 4090 Mobile and AMD Radeon Pro WX 7100 represent two very different eras of GPU design, and the benchmark data reflects that gap clearly. The RTX 4090 Mobile posts an average benchmark score of 43,667, placing it in the 84th percentile of all GPUs, while the Radeon Pro WX 7100 averages 40,063, sitting in the 82nd percentile. Though the percentile difference appears small, the head-to-head results show the NVIDIA part winning both available tests by margins exceeding 330%. The RTX 4090 Mobile is an active, current-generation part built on a 5 nm process, while the WX 7100 is an end-of-life product from 2016 built on 14 nm. These are not close competitors in raw capability, but the data reveals distinct use cases where each card's characteristics matter.

Where Each One Wins

The RTX 4090 Mobile wins every benchmark test in which both cards were measured. In Geekbench OpenCL, it scores 180,831 against the WX 7100's 40,148, a 350.4% advantage. In Geekbench Vulkan, it scores 170,774 versus 39,683, a 330.3% lead. These are overwhelming margins, indicating that for any compute workload using OpenCL or Vulkan, the NVIDIA part is in a different performance class entirely.

The Radeon Pro WX 7100's strengths lie elsewhere. It is the only card of the two with a dedicated workstation feature set: four DisplayPort 1.4a outputs, a single-slot form factor, and a 300 W suggested PSU requirement. The RTX 4090 Mobile, by contrast, is an IGP (integrated graphics processor) with no power connectors and display outputs described as "Portable Device Dependent," meaning it is designed for laptops where the display path is determined by the system integrator. The WX 7100 also carries a launch MSRP of 799 USD, which can be stated once for context, whereas the RTX 4090 Mobile has no listed launch MSRP.

For professional environments requiring multiple simultaneous display outputs in a desktop workstation, the WX 7100's four DisplayPort 1.4a connections and single-slot profile are practical advantages. For any performance-sensitive task, the RTX 4090 Mobile dominates.

Architecture Differences

The architectural gap between these two GPUs is generational. The RTX 4090 Mobile uses the AD103 chip built on TSMC's 5 nm process, with 45,900 million transistors packed into a 379 mm² die, yielding a transistor density of 121.1 million per mm². The WX 7100 uses the Ellesmere chip built on GlobalFoundries' 14 nm process, with 5,700 million transistors on a 232 mm² die, for a density of 24.6 million per mm². That is a density difference of roughly five times, and it shows in every performance metric.

The RTX 4090 Mobile is based on Ada Lovelace architecture, which includes 76 ray-tracing cores and 304 tensor cores. The WX 7100, based on GCN 4.0, has neither ray-tracing nor tensor cores — those fields are null in the data. The NVIDIA part also supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the AMD card supports DirectX 12 (12_0) and Vulkan 1.3. Both cards support OpenGL 4.6, but the feature-level difference in DirectX means the RTX 4090 Mobile can handle newer rendering features that the WX 7100 cannot.

The shader configuration is similarly lopsided. The RTX 4090 Mobile has 9,728 shading units, 304 texture mapping units, and 112 ROPs. The WX 7100 has 2,304 shading units, 144 TMUs, and 32 ROPs. That is roughly 4.2 times the shading units, 2.1 times the TMUs, and 3.5 times the ROPs on the NVIDIA side.

Head-to-Head Benchmarks

The two head-to-head benchmarks available are Geekbench OpenCL and Geekbench Vulkan, and both go decisively to the RTX 4090 Mobile.

In Geekbench OpenCL, the RTX 4090 Mobile scores 180,831 against the WX 7100's 40,148. The delta is 350.4%, meaning the NVIDIA part is roughly 4.5 times faster in this compute test. This is the largest single margin in the comparison. The OpenCL test exercises general-purpose compute across the GPU's shader array, and the RTX 4090 Mobile's 32.98 TFLOPS of FP32 performance dwarfs the WX 7100's 5.728 TFLOPS.

In Geekbench Vulkan, the RTX 4090 Mobile scores 170,774 against 39,683, a 330.3% delta. The margin is slightly smaller than OpenCL but still enormous. Vulkan tests often stress driver overhead and draw-call throughput, and the Ada Lovelace architecture with its newer API support (Vulkan 1.4 versus 1.3) appears to handle the workload more efficiently.

The RTX 4090 Mobile also has additional benchmark results not available for the WX 7100: Passmark DirectX 10 (173), DirectX 11 (262), DirectX 12 (107), DirectX 9 (310), G2D (984), G3D (27,212), and GPU Compute (12,347). The WX 7100 has a Geekbench Metal score of 40,357, which the NVIDIA card cannot be tested on since Metal is Apple's API and the RTX 4090 Mobile is a Windows/Linux-oriented part. The absence of overlapping tests in these areas means the head-to-head comparison is limited to OpenCL and Vulkan, but those two tests tell a consistent story.

Specification Differences

The specification sheets reveal how far apart these products are in design philosophy and capability.

Process node: The RTX 4090 Mobile is built on 5 nm (TSMC); the WX 7100 is on 14 nm (GlobalFoundries).

Transistors: 45,900 million versus 5,700 million — an eight-fold difference.

Die size: 379 mm² versus 232 mm².

Memory: The RTX 4090 Mobile has 16 GB of GDDR6 on a 256-bit bus, delivering 576.0 GB/s bandwidth. The WX 7100 has 8 GB of GDDR5 on a 256-bit bus, delivering 224.0 GB/s. Both use the same bus width, but the NVIDIA part has twice the capacity and roughly 2.6 times the bandwidth.

Clock speeds: The RTX 4090 Mobile runs at a 1335 MHz base and 1695 MHz boost, with memory at 2250 MHz (18 Gbps effective). The WX 7100 runs at 1188 MHz base and 1243 MHz boost, with memory at 1750 MHz (7 Gbps effective).

Compute rates: The RTX 4090 Mobile delivers 32.98 TFLOPS FP32 and FP16 (1:1), a pixel rate of 189.8 GPixel/s, and a texture rate of 515.3 GTexel/s. The WX 7100 delivers 5.728 TFLOPS FP32 and FP16 (1:1), 39.78 GPixel/s, and 179.0 GTexel/s.

Power and form factor: The RTX 4090 Mobile has a 120 W TDP, is IGP slot width, and uses no power connectors. The WX 7100 has a 130 W TDP, is single-slot, uses one 6-pin power connector, and has a suggested PSU of 300 W.

Bus interface: PCIe 4.0 x16 for the NVIDIA part; PCIe 3.0 x16 for the AMD part.

Display outputs: The RTX 4090 Mobile is "Portable Device Dependent"; the WX 7100 has 4x DisplayPort 1.4a.

Physical dimensions: The WX 7100 is 241 mm (9.5 inches) long and 112 mm (4.4 inches) high; the RTX 4090 Mobile has no listed dimensions.

Release status: The RTX 4090 Mobile was released 2023-01-02 and is Active; the WX 7100 was released 2016-11-09 and is End-of-life.

FAQ

Q: Which GPU has higher raw compute performance?

A: The RTX 4090 Mobile delivers 32.98 TFLOPS FP32 versus the WX 7100's 5.728 TFLOPS. In Geekbench OpenCL, the RTX 4090 Mobile scores 180,831 versus 40,148, a 350.4% lead.

Q: Does the AMD Radeon Pro WX 7100 support ray tracing?

A: No. The WX 7100 has null entries for both ray-tracing cores and tensor cores, whereas the RTX 4090 Mobile has 76 ray-tracing cores and 304 tensor cores.

Q: Which card has more memory and bandwidth?

A: The RTX 4090 Mobile has 16 GB of GDDR6 with 576.0 GB/s bandwidth. The WX 7100 has 8 GB of GDDR5 with 224.0 GB/s bandwidth. Both use a 256-bit bus.

Q: Are these cards comparable in power consumption?

A: The RTX 4090 Mobile has a 120 W TDP and requires no power connectors. The WX 7100 has a 130 W TDP, uses one 6-pin connector, and suggests a 300 W PSU. The power draw is similar, but the form factors differ: the NVIDIA part is an IGP, while the AMD part is single-slot.

Q: Which card supports newer graphics APIs?

A: The RTX 4090 Mobile supports DirectX 12 Ultimate (12_2) and Vulkan 1.4. The WX 7100 supports DirectX 12 (12_0) and Vulkan 1.3. Both support OpenGL 4.6.

Q: Can the Radeon Pro WX 7100 compete in Vulkan performance?

A: No. In Geekbench Vulkan, the RTX 4090 Mobile scores 170,774 versus the WX 7100's 39,683, a 330.3% difference in NVIDIA's favor.

The Verdict

The data is unambiguous: the NVIDIA GeForce RTX 4090 Mobile is a far more capable GPU than the AMD Radeon Pro WX 7100 in every measured compute benchmark. The RTX 4090 Mobile wins both head-to-head tests by margins of 330% or more, has 5.76 times the FP32 throughput, 2.57 times the memory bandwidth, and supports newer API versions across the board. It also has ray-tracing and tensor cores, which the WX 7100 lacks entirely.

However, the WX 7100 is not without a niche. Its four DisplayPort 1.4a outputs, single-slot form factor, and 300 W suggested PSU make it a straightforward drop-in for workstation desktops that need multiple high-resolution displays. The RTX 4090 Mobile, being an IGP with portable-device-dependent outputs, is not designed for that role. The WX 7100's end-of-life status and 2016 release date mean it is a legacy product, but for a fixed-function multi-display workstation, it remains a viable option where raw compute is not the priority.

For anyone choosing between these two based on performance, the RTX 4090 Mobile is the only rational pick. The 84th percentile ranking versus the 82nd percentile understates the true gap, because the average benchmark score difference (43,667 versus 40,063) is compressed by the fact that the WX 7100's only benchmarks are Geekbench tests where it scores near 40,000, while the RTX 4090 Mobile's Passmark scores pull its average down. The head-to-head deltas of 350.4% and 330.3% are the more honest representation of their relative performance. The RTX 4090 Mobile is a current-generation, active product with a 5 nm process, 16 GB of memory, and Ada Lovelace features. The WX 7100 is a 14 nm, end-of-life workstation card from 2016. The verdict is straightforward: choose the RTX 4090 Mobile for compute, rendering, or gaming workloads, and consider the WX 7100 only if the specific requirement is a multi-display, single-slot desktop workstation with AMD's DisplayPort 1.4a outputs.