RTX PRO 5000 72 GB Blackwell vs Iris Plus Graphics 645
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 715 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 21.31 | no data |
| Architecture | Generation 9.5 (2016−2020) | Blackwell 2.0 (2025−2026) |
| GPU code name | Coffee Lake GT3e | GB202 |
| Market segment | Laptop | Workstation |
| Release date | 7 October 2019 (6 years ago) | 21 October 2025 (recently) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 384 | 14080 |
| Core clock speed | 300 MHz | 1740 MHz |
| Boost clock speed | 1050 MHz | 2377 MHz |
| Number of transistors | no data | 92,200 million |
| Manufacturing process technology | 14 nm+++ | 5 nm |
| Power consumption (TDP) | 15 Watt | 300 Watt |
| Texture fill rate | 50.40 | 1,045.9 |
| Floating-point processing power | 0.8064 TFLOPS | 66.94 TFLOPS |
| ROPs | 6 | 176 |
| TMUs | 48 | 440 |
| Tensor Cores | no data | 440 |
| Ray Tracing Cores | no data | 110 |
| L1 Cache | no data | 13.8 MB |
| L2 Cache | no data | 96 MB |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | Ring Bus | PCIe 5.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 1x 16-pin |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | System Shared | GDDR7 |
| Maximum RAM amount | System Shared | 72 GB |
| Memory bus width | System Shared | 384 Bit |
| Memory clock speed | System Shared | 1750 MHz |
| Memory bandwidth | no data | 1.34 TB/s |
| Shared memory | + | - |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | Portable Device Dependent | 4x DisplayPort 2.1b |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Quick Sync | + | no data |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 Ultimate (12_2) |
| Shader Model | 6.4 | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.3 | 1.4 |
| CUDA | - | 12.0 |
| DLSS | - | + |
Pros & cons summary
| Recency | 7 October 2019 | 21 October 2025 |
| Chip lithography | 14 nm | 5 nm |
| Power consumption (TDP) | 15 Watt | 300 Watt |
Iris Plus Graphics 645 has 1900% lower power consumption.
RTX PRO 5000 72 GB Blackwell, on the other hand, has an age advantage of 6 years, and a 180% more advanced lithography process.
We couldn't decide between Iris Plus Graphics 645 and RTX PRO 5000 72 GB Blackwell. We've got no test results to judge.
Be aware that Iris Plus Graphics 645 is a notebook graphics card while RTX PRO 5000 72 GB Blackwell is a workstation one.
Other comparisons
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