NVIDIA GeForce 8400
NVIDIA graphics card specifications and benchmark scores
At a Glance
NVIDIANVIDIA GeForce 8400 Specifications
GeForce 8400 GPU Core
Shader units and compute resources
The NVIDIA GeForce 8400 GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.
8400 Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the GeForce 8400's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The GeForce 8400 by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
NVIDIA's GeForce 8400 Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The GeForce 8400's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.
GeForce 8400 by NVIDIA Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the 8400, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.
8400 Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the NVIDIA GeForce 8400 against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.
Tesla Architecture & Process
Manufacturing and design details
The NVIDIA GeForce 8400 is built on NVIDIA's Tesla architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the 8400 will perform in GPU benchmarks compared to previous generations.
NVIDIA's GeForce 8400 Power & Thermal
TDP and power requirements
Power specifications for the NVIDIA GeForce 8400 determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the GeForce 8400 to maintain boost clocks without throttling.
GeForce 8400 by NVIDIA Physical & Connectivity
Dimensions and outputs
Physical dimensions of the NVIDIA GeForce 8400 are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.
NVIDIA API Support
Graphics and compute APIs
API support determines which games and applications can fully utilize the NVIDIA GeForce 8400. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.
GeForce 8400 Product Information
Release and pricing details
The NVIDIA GeForce 8400 is manufactured by NVIDIA as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the GeForce 8400 by NVIDIA represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
GeForce 8400 Benchmark Scores
No benchmark data available for this GPU.
About NVIDIA GeForce 8400
The NVIDIA GeForce 8400 is a low-end graphics card from the GeForce 8 family, built on the Tesla architecture with the G98S chip. It was released on December 3, 2007, and is now marked as end-of-life. The card features 256 MB of DDR2 memory on a 64-bit bus, delivering 8.000 GB/s of bandwidth, and a TDP of 25 W, which makes it a low-power solution that requires no auxiliary power connectors and a suggested PSU of 200 W. With a single-slot design, it fits into compact systems, and its PCIe 2.0 x16 interface ensures broad compatibility. The database lists no nearest rivals for this GPU, so its position is defined by its percentile rank and raw specifications.
How It Compares
The database does not provide any nearest rival data for the GeForce 8400, so a direct head-to-head comparison is not possible. However, the card holds a percentile rank of 50 among all GPUs in the database, placing it exactly at the median. This means that, based on the database’s internal scoring, it outperforms half of the recorded GPUs and underperforms the other half. The average benchmark score is 0, indicating that no benchmark results have been submitted for this card, so the percentile rank is likely a default or placeholder value rather than a reflection of measured performance.
In the absence of rival data, the card can be positioned against its immediate predecessors and successors. Its predecessor is the GeForce 7 PCIe series, and its successor is the GeForce 9 series. This places the 8400 as an early entry in the GeForce 8 lineup, specifically the 8400 model. The chip is fabricated on a 65 nm process at UMC, with 210 million transistors on an 86 mm² die, giving a transistor density of 2.4 million per square millimeter. These figures are modest by modern standards, but they were typical for a low-end part in 2007. The card’s shading units number 8, with 4 texture mapping units and 4 render output units, resulting in a pixel rate of 2.160 GPixel/s and a texture rate of 2.160 GTexel/s. The FP32 compute throughput is 20.80 GFLOPS, which is a low figure that underscores its entry-level positioning.
Ray Tracing and Feature Set
The GeForce 8400 does not include any ray tracing cores or tensor cores; both fields are null in the database. This means the card lacks hardware support for ray-traced lighting, shadows, or reflections, as well as AI-based features like DLSS or tensor-accelerated workloads. Its API support is limited to DirectX 11.1 (with a feature level of 10_0) and OpenGL 3.3. The DirectX 11.1 label indicates that the driver exposes the DirectX 11.1 API, but the hardware’s feature level is only 10_0, meaning it cannot execute the full DirectX 11 feature set. Vulkan is not supported, which further restricts its use in modern applications that rely on this low-level API.
The card’s display outputs are 1x DVI, 1x VGA, and 1x S-Video, which are typical for the era and support older monitors and projectors. The memory clock is 500 MHz, with an effective data rate of 1000 Mbps, and the memory bandwidth is 8.000 GB/s. The card has no base or boost clock listed, only the memory clock, which suggests that the core clock is not a significant differentiator. The lack of RT and tensor cores, combined with the limited API support, makes it clear that this GPU is not intended for modern gaming or compute workloads.
Power and Cooling
The GeForce 8400 has a TDP of 25 W, which is very low. It is a single-slot card and does not require any auxiliary power connectors, as indicated by the “None” entry for power connectors. The suggested PSU is 200 W, which is a modest requirement that can be met by most standard power supplies. The low power draw means that the card generates minimal heat, so a simple passive or low-profile cooler is sufficient. The card uses a PCIe 2.0 x16 interface, which is backward compatible with PCIe 1.0 slots, and the single-slot design ensures it can fit in most cases without obstructing adjacent slots. The absence of a power connector simplifies installation, as no additional cables are needed.
FAQ
Q: What is the memory size and type of the GeForce 8400?
A: The card has 256 MB of DDR2 memory on a 64-bit bus, with a bandwidth of 8.000 GB/s.
Q: Does the GeForce 8400 support ray tracing?
A: No. The card has no ray tracing cores (RT cores) and no tensor cores, so it cannot perform ray tracing or AI-based acceleration.
Q: What is the TDP and PSU requirement?
A: The TDP is 25 W, and the suggested PSU is 200 W. No auxiliary power connectors are required.
Q: Which APIs does the card support?
A: It supports DirectX 11.1 (with a feature level of 10_0) and OpenGL 3.3. Vulkan is not supported.
Q: What is the production status and release date?
A: The card is end-of-life, with a release date of December 3, 2007.
Q: What is the bus interface?
A: The card uses PCIe 2.0 x16, which is compatible with most motherboards.
Who Should Consider It
The GeForce 8400 is a low-end GPU that is best suited for basic computing tasks, such as office work, web browsing, video playback, and legacy games that do not demand high graphics performance. The data shows a card with only 8 shading units, 4 TMUs, and 4 ROPs, delivering a pixel rate of 2.160 GPixel/s and a texture rate of 2.160 GTexel/s. The FP32 performance is 20.80 GFLOPS, which is modest by any standard. The card sits at the 50th percentile of all GPUs in the database, but with no benchmark scores, this rank is not a reliable indicator of real-world performance. Its low TDP of 25 W and lack of power connectors make it an easy drop-in for older systems with a 200 W PSU.
Given its feature set, the card is not suitable for high-end gaming, ray tracing, or compute-intensive tasks. It lacks the hardware for modern APIs like Vulkan, and its DirectX 11.1 support is limited to the 10_0 feature level, which excludes many current titles. The card’s 256 MB memory and 64-bit bus also restrict its ability to handle high-resolution textures. For users seeking a simple display adapter for a legacy system or a secondary machine, the GeForce 8400 can serve as a functional, low-power solution. However, for any modern workload, the data clearly indicates that this GPU is not a viable choice.
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