NVIDIA GeForce RTX 4080 Mobile vs NVIDIA RTX PRO 4500 Blackwell Comparison

# NVIDIA GeForce RTX 4080 Mobile vs NVIDIA RTX PRO 4500 Blackwell

The database places these two NVIDIA parts in different tiers of the current GPU landscape. The GeForce RTX 4080 Mobile is a laptop-oriented Ada Lovelace part, while the RTX PRO 4500 Blackwell is a workstation-class accelerator built on the newer Blackwell 2.0 architecture. The recorded benchmark aggregate places the RTX 4080 Mobile at the 81st percentile of all GPUs, with an average benchmark score of 38,135. The RTX PRO 4500 Blackwell sits at the 76th percentile, with an average score of 31,532. The raw score gap is meaningful, but the architectural differences explain why these parts are not direct substitutes.

The most important observation from the database is the spread in synthetic workloads. The RTX 4080 Mobile wins 0 of the 8 head-to-head tests, while the RTX PRO 4500 Blackwell wins all 8. The largest deltas appear in compute-oriented tests: Passmark GPU Compute shows the RTX PRO 4500 ahead by 41.9%, and the GeForce part trails by a similar margin in 3DMark Steel Nomad DX12, where the RTX PRO 4500 Blackwell leads by 25.3%. These are not small margins, and they point to a fundamental difference in compute and render throughput.

FAQ

Q: What is the architecture of the NVIDIA GeForce RTX 4080 Mobile?

A: The GeForce RTX 4080 Mobile is built on the Ada Lovelace architecture, using the AD104 chip, and is fabricated on a 5 nm process node at TSMC. The die measures 294 mm² and packs 35,800 million transistors, for a density of 121.8 million transistors per mm².

Q: What memory configuration does the RTX 4080 Mobile use?

A: It ships with 12 GB of GDDR6 memory on a 192-bit bus, producing 432.0 GB/s of bandwidth. Memory clocks run at 2250 MHz, which translates to a 18 Gbps effective data rate.

Q: What are the clock speeds of the RTX 4080 Mobile?

A: The base clock is 1290 MHz with a boost clock of 1665 MHz. The memory operates at 2250 MHz.

Q: What API support does the RTX 4080 Mobile include?

A: It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the RTX 4080 Mobile shading and compute configuration?

A: It has 7424 shader units, 232 TMUs, 80 ROPs, 58 RT cores, and 232 tensor cores. Pixel fill rate is 133.2 GPixel/s, texture rate is 386.3 GTexel/s. FP32 and FP16 are both 24.72 TFLOPS.

Q: What is the power draw and physical size of the RTX 4080 Mobile?

A: It is rated at 110 W TDP and is an IGP (integrated GPU) solution, so it requires no power connectors. It uses a PCIe 4.0 x16 interface and relies on the host device for display outputs.

Q: What is the release and predecessor of the RTX 4080 Mobile?

A: The production status is Active, and it was released on 2023-01-02. Its predecessor is the GeForce 30 Mobile series, and its successor is the GeForce 50 Mobile.

Q: What is the RTX PRO 4500 Blackwell architecture and memory?

A: The RTX PRO 4500 Blackwell uses the GB203 chip, built on the Blackwell 2.0 architecture, and is also fabricated on a 5 nm process at TSMC. The die measures 378 mm² with 45,600 million transistors, giving a density of 120.6M per mm².

Q: What memory does the RTX PRO 4500 Blackwell carry?

A: It has 32 GB of GDDR7 memory on a 256-bit bus, with 896.0 GB/s of bandwidth, and memory clocked at 1750 MHz with an effective 28 Gbps data rate.

Q: What are the RTX PRO 4500 Blackwell clocks and compute?

A: The base clock is 1635 MHz, the boost clock is 2407 MHz, and the memory is 1750 MHz. FP32 is rated 50.53 TFLOPS and FP16 is 50.53 TFLOPS (1:1).

Q: What is the shading and output configuration of the 4500?

A: It includes 10496 shading units, 328 tensor cores, 112 ROPs, 82 RT cores, and 328 tensor cores. Pixel rate is 269.6 GPixel/s, texture rate is 789.5 GTexel/s.

Q: What is the physical and electrical design of the 4500?

A: It is a dual-slot card, 267 mm long, 111 mm high, 40 mm wide. It uses one 16-pin power connector, and the suggested power supply is 550 W. The bus interface is PCIe 5.0 x16 and it has 4x DisplayPort 2.1b outputs. It is an active product released on 2025-03-17. The predecessor is the Workstation Ada series, and there is no successor listed.

Architecture Differences

The two chips belong to different architectural generations. The RTX 4080 Mobile is based on AD104, an Ada Lovelace design, while the RTX PRO 4500 Blackwell is built around GB203 and the newer Blackwell 2.0 design. The fabrication process for both is 5 nm at TSMC, but the physical implementation is quite different: the mobile AD104 die measures 294 mm², whereas the workstation GB203 die is 378 mm². Transistor counts differ accordingly, with the RTX 4080 Mobile integrating 35,800 million and the RTX PRO 4500 Blackwell integrating 45,600 million. The newer Blackwell design pushes transistor density to 120.6M per mm², versus the Ada part’s 121.8M per mm². The RTX PRO 4500 Blackwell has a larger memory pool, more memory bandwidth, and considerably more execution units.

The shading and compute resources are the largest differentiator. The RTX PRO 4500 Blackwell integrates 10496 shading units, 328 tensor cores, 328 TMUs, and 82 RT cores. The RTX 4080 Mobile contains a smaller array: 7424 shading units, 232 tensor cores, 58 RT cores, and 80 TMUs. The Blackwell part also has a higher memory configuration with 32 GB GDDR7 on a 256-bit bus, versus 12 GB GDDR6 on a 192-bit bus on the mobile GeForce. The memory bandwidth difference is 896.0 GB/s versus 432.0 GB/s, more than double for the workstation part.

The board power and physical design also differ. The RTX 4080 Mobile is rated at 110 W and is a slotless design, while the RTX PRO 4500 Blackwell is rated at 200 W and uses a dual-slot with one 16-pin power connector. The RTX 4080 Mobile has no external power connector because it is an IGP. The RTX PRO 4500 requires a 550 W power supply, while the RTX 4080 Mobile depends on the host system.

The API support also differs slightly. Both are current, but the RTX PRO 4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6 and Vulkan 1.4. The RTX 4080 Mobile lists the same set: DirectX 12 Ultimate (12_2), OpenGL 4.6 and Vulkan 1.4. Maximum display output is also different: the mobile part says Portable Device Dependent, while the PRO part lists 4x DisplayPort 2.1b.

Head-to-Head Benchmarks

The benchmark suite shows a clear hierarchy, and in every recorded test the RTX PRO 4500 Blackwell is ahead. The most spectacular win is in Passmark GPU Compute, where the workstation card scores 19,255 versus 11,191 for the mobile chip, a delta of 41.9%. This fits the large difference in tensor core count and power envelope between the two.

In Geekbench Vulkan, the RTX 4500 PRO Blackwell scores 221,768 versus 145,807 for the RTX 4080 Mobile, a 34.3% advantage. The same trend appears in synthetic DirectX tests. In Passmark DirectX 10, the RTX PRO 4500 Blackwell scores 204 vs 157 (23.0% delta), and in DirectX 11 it scores 320 vs 244 (23.7% delta). These are consistent wins across API generations.

The RTX PRO 4500 Blackwell is also ahead in legacy DirectX 9 and 2D tests. In Passmark G2D the delta is 30.5% (1336 vs 929), and in Passmark G3D it is 25.3% (33,360 vs 24,926). DirectX 12 also favors the Blackwell part: 119 vs 96, a 19.3% delta.

The largest gap in the entire suite is Passmark GPU Compute, where the RTX PRO 4500 Blackwell leads by 41.9%. The smallest lead is in Passmark DirectX 12, where the RTX PRO 4500 Blackwell beats the RTX 4080 Mobile by 19.3%.

Specification Differences

The two cards have different memory capacity. The RTX 4080 Mobile has 12 GB GDDR6 on a 192-bit bus, while the RTX PRO 4500 Blackwell has 64 GB GDDR7 on a 256-bit bus. Memory bandwidth is 432.0 GB/s vs 896.0 GB/s in favor of the Blackwell card. The memory clock is also different: the RTX 4080 Mobile runs at 2250 MHz effective 18 Gbps, and the PRO 4500 runs at 1750 MHz effective 28 Gbps.

The shading and compute resources differ in counts. The RTX 4080 Mobile has 7424 shading units, 80 ROPs, 232 TMUs, 58 RT cores, and 232 tensor cores. The PRO 4500 has 10496 shading units, 112 ROPs, 328 TMUs, 82 RT cores, and 328 tensor cores. The Blackwell card has higher values in every column.

The two cards also have different power and physical profiles. The RTX 4080 Mobile has a 110 W TDP and is an IGP with no power connectors. The RTX PRO 4500 Blackwell has a 200 W TDP, a dual-slot cooler, and one 16-pin power connector, with a recommended 550 W PSU. The bus interface is also different: PCIe 4.0 x16 on the mobile part, PCIe 5.0 x16 on the PRO.

The RTX PRO 4500 Blackwell has 4x DisplayPort 2.1b outputs. The RTX 4080 Mobile does not list fixed outputs, instead saying "portable device dependent".

The Verdict

The database is clear: the NVIDIA RTX PRO 4500 Blackwell is the better part on every recorded test, with 10 wins out of 10 head-to-head matches and significant margins. It is also more than the RTX 4080 Mobile in every execution resource: more shading units, more ROPs, more TMUs, more RT cores, more tensor cores, more memory, and memory bandwidth. The RTX 4080 Mobile’s only advantages are a smaller die and a lower power target, but those are not performance advantages. If you have a workload that can use the Blackwell 2.0 architecture, the RTX PRO 4500 Blackwell is the stronger pick. If you need an IGP with modest power draw and a compact die, the RTX 4080 Mobile is the viable choice, but the data indicates it is not the performance leader.