Radeon RX 6900 vs GeForce 8400
Aggregate performance score
We've compared GeForce 8400 and Radeon RX 6900, covering specs and all relevant benchmarks.
RX 6900 outperforms 8400 by a whopping 33232% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1453 | 34 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 0.59 | 19.24 |
| Architecture | Tesla (2006−2010) | RDNA 2.0 (2020−2025) |
| GPU code name | G98 | Navi 21 |
| Market segment | Desktop | Desktop |
| Release date | 4 December 2007 (17 years ago) | 28 October 2020 (5 years ago) |
| Launch price (MSRP) | $69.78 | no data |
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 | 8 | 4608 |
| Core clock speed | 540 MHz | no data |
| Boost clock speed | no data | 2105 MHz |
| Number of transistors | 210 million | 23,000 million |
| Manufacturing process technology | 65 nm | 7 nm |
| Power consumption (TDP) | 25 Watt | 255 Watt |
| Texture fill rate | 4.320 | 606.2 |
| Floating-point processing power | 0.0208 TFLOPS | 19.4 TFLOPS |
| ROPs | 4 | 64 |
| TMUs | 8 | 288 |
| L2 Cache | 16 KB | no data |
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 2.0 x16 | PCIe 4.0 x16 |
| Width | 1-slot | 2-slot |
| Supplementary power connectors | None | 2x 8-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 | DDR2 | GDDR6 |
| Maximum RAM amount | 256 MB | 16 GB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 500 MHz | 16 GB/s |
| Memory bandwidth | 8 GB/s | 512.0 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 DVI, 1x VGA, 1x S-Video | 1x HDMI, 2x DisplayPort, 1x USB Type-C |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11.1 (10_0) | 12 Ultimate (12_2) |
| Shader Model | 4.0 | 6.5 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 2.0 |
| Vulkan | N/A | 1.2 |
| CUDA | 1.1 | - |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 0.19 | 63.33 |
| Recency | 4 December 2007 | 28 October 2020 |
| Maximum RAM amount | 256 MB | 16 GB |
| Chip lithography | 65 nm | 7 nm |
| Power consumption (TDP) | 25 Watt | 255 Watt |
GeForce 8400 has 920% lower power consumption.
RX 6900, on the other hand, has a 33231.6% higher aggregate performance score, an age advantage of 12 years, a 6300% higher maximum VRAM amount, and a 828.6% more advanced lithography process.
The Radeon RX 6900 is our recommended choice as it beats the GeForce 8400 in performance tests.
Other comparisons
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