Radeon RX 6400 vs Riva 128ZX
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 329 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 44.53 |
| Power efficiency | no data | 26.57 |
| Architecture | no data | RDNA 2.0 (2020−2025) |
| GPU code name | NV3 | Navi 24 |
| Market segment | Desktop | Desktop |
| Release date | 23 February 1998 (27 years ago) | 19 January 2022 (3 years ago) |
| Launch price (MSRP) | no data | $159 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
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 | no data | 768 |
| Core clock speed | 100 MHz | 1923 MHz |
| Boost clock speed | no data | 2321 MHz |
| Number of transistors | 4 million | 5,400 million |
| Manufacturing process technology | 350 nm | 6 nm |
| Power consumption (TDP) | no data | 53 Watt |
| Texture fill rate | 0.1 | 111.4 |
| Floating-point processing power | no data | 3.565 TFLOPS |
| ROPs | 1 | 32 |
| TMUs | 1 | 48 |
| Ray Tracing Cores | no data | 12 |
| L0 Cache | no data | 192 KB |
| L1 Cache | no data | 256 KB |
| L2 Cache | no data | 1024 KB |
| L3 Cache | no data | 16 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 | AGP 2x | PCIe 4.0 x4 |
| Width | 1-slot | 1-slot |
| Supplementary power connectors | None | None |
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 | SDR | GDDR6 |
| Maximum RAM amount | 8 MB | 4 GB |
| Memory bus width | 128 Bit | 64 Bit |
| Memory clock speed | 100 MHz | 2000 MHz |
| Memory bandwidth | 1.6 GB/s | 128.0 GB/s |
| 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 | 1x VGA | 1x HDMI 2.1, 1x DisplayPort 1.4a |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 5.0 | 12 Ultimate (12_2) |
| Shader Model | no data | 6.7 |
| OpenGL | 1.0 | 4.6 |
| OpenCL | N/A | 2.2 |
| Vulkan | N/A | 1.3 |
Pros & cons summary
| Recency | 23 February 1998 | 19 January 2022 |
| Maximum RAM amount | 8 MB | 4 GB |
| Chip lithography | 350 nm | 6 nm |
RX 6400 has an age advantage of 23 years, a 51100% higher maximum VRAM amount, and a 5733.3% more advanced lithography process.
We couldn't decide between Riva 128ZX and Radeon RX 6400. We've got no test results to judge.
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