H100 CNX vs Radeon Graphics 128SP
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | RDNA 2.0 (2020−2025) | Hopper (2022−2024) |
| GPU code name | Raphael | GH100 |
| Market segment | Desktop | Workstation |
| Release date | 27 September 2022 (3 years ago) | 21 March 2023 (2 years ago) |
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 | 128 | 14592 |
| Core clock speed | 400 MHz | 690 MHz |
| Boost clock speed | 2200 MHz | 1845 MHz |
| Number of transistors | 3,400 million | 80,000 million |
| Manufacturing process technology | 5 nm | 4 nm |
| Power consumption (TDP) | 15 Watt | 350 Watt |
| Texture fill rate | 17.60 | 841.3 |
| Floating-point processing power | 0.5632 TFLOPS | 53.84 TFLOPS |
| ROPs | 8 | 24 |
| TMUs | 8 | 456 |
| Tensor Cores | no data | 456 |
| Ray Tracing Cores | 2 | no data |
| L0 Cache | 32 KB | no data |
| L1 Cache | 64 KB | 28.5 MB |
| L2 Cache | 2 MB | 50 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 | PCIe 4.0 x8 | PCIe 5.0 x16 |
| Length | no data | 267 mm |
| Width | IGP | 2-slot |
| Supplementary power connectors | None | 8-pin EPS |
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 | HBM2e |
| Maximum RAM amount | System Shared | 80 GB |
| Memory bus width | System Shared | 5120 Bit |
| Memory clock speed | System Shared | 1593 MHz |
| Memory bandwidth | no data | 2,039 GB/s |
| Shared memory | + | - |
| Resizable BAR | - | + |
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 | Motherboard Dependent | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | N/A |
| Shader Model | 6.7 | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.3 | N/A |
| CUDA | - | 9.0 |
| DLSS | - | + |
Pros & cons summary
| Recency | 27 September 2022 | 21 March 2023 |
| Chip lithography | 5 nm | 4 nm |
| Power consumption (TDP) | 15 Watt | 350 Watt |
Graphics 128SP has 2233.3% lower power consumption.
H100 CNX, on the other hand, has an age advantage of 5 months, and a 25% more advanced lithography process.
We couldn't decide between Radeon Graphics 128SP and H100 CNX. We've got no test results to judge.
Be aware that Radeon Graphics 128SP is a desktop graphics card while H100 CNX is a workstation one.
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