GEFORCE

NVIDIA GeForce 8400 GS PCI

NVIDIA graphics card specifications and benchmark scores

512 MB
VRAM
MHz Boost
25W
TDP
64
Bus Width

At a Glance

NVIDIA
VRAM 512 MB
Shaders 8
Bus Width 64-bit
TDP 25W
Memory Type DDR2
Architecture Tesla
nm
Process 65 nm
Released Dec 2007

NVIDIA GeForce 8400 GS PCI Specifications

GeForce 8400 GS PCI GPU Core

Shader units and compute resources

The NVIDIA GeForce 8400 GS PCI 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.

Shading Units
8
Shaders
8
TMUs
4
ROPs
4
SM Count
1

8400 GS PCI Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the GeForce 8400 GS PCI'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 GS PCI by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
567 MHz
Memory Clock
333 MHz 666 Mbps effective
Shader Clock
1400 MHz
GDDR GDDR 6X 6X

NVIDIA's GeForce 8400 GS PCI Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The GeForce 8400 GS PCI'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.

Memory Size
512 MB
VRAM
512 MB
Memory Type
DDR2
VRAM Type
DDR2
Memory Bus
64 bit
Bus Width
64-bit
Bandwidth
5.328 GB/s

GeForce 8400 GS PCI by NVIDIA Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the 8400 GS PCI, 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.

L2 Cache
16 KB

8400 GS PCI Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the NVIDIA GeForce 8400 GS PCI 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.

FP32 (Float)
22.40 GFLOPS
Pixel Rate
2.268 GPixel/s
Texture Rate
2.268 GTexel/s

Tesla Architecture & Process

Manufacturing and design details

The NVIDIA GeForce 8400 GS PCI 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 GS PCI will perform in GPU benchmarks compared to previous generations.

Architecture
Tesla
GPU Name
G98S
Process Node
65 nm
Foundry
UMC
Transistors
210 million
Die Size
86 mm²
Density
2.4M / mm²

NVIDIA's GeForce 8400 GS PCI Power & Thermal

TDP and power requirements

Power specifications for the NVIDIA GeForce 8400 GS PCI 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 GS PCI to maintain boost clocks without throttling.

TDP
25 W
TDP
25W
Power Connectors
None
Suggested PSU
200 W

GeForce 8400 GS PCI by NVIDIA Physical & Connectivity

Dimensions and outputs

Physical dimensions of the NVIDIA GeForce 8400 GS PCI 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.

Slot Width
Single-slot
Length
170 mm 6.7 inches
Height
70 mm 2.8 inches
Bus Interface
PCI
Display Outputs
1x S-Video1x DMS-59
Display Outputs
1x S-Video1x DMS-59

NVIDIA API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the NVIDIA GeForce 8400 GS PCI. 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.

DirectX
11.1 (10_0)
DirectX
11.1 (10_0)
OpenGL
3.3
OpenGL
3.3
OpenCL
1.1
CUDA
1.1
Shader Model
4.0

GeForce 8400 GS PCI Product Information

Release and pricing details

The NVIDIA GeForce 8400 GS PCI 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 GS PCI by NVIDIA represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
NVIDIA
Release Date
Dec 2007
Production
End-of-life
Predecessor
GeForce 7 PCIe
Successor
GeForce 9

GeForce 8400 GS PCI Benchmark Scores

No benchmark data available for this GPU.

About NVIDIA GeForce 8400 GS PCI

The NVIDIA GeForce 8400 GS PCI is a legacy entry-level graphics card built on the Tesla architecture, designed for basic display output rather than modern gaming performance. With a 50th percentile ranking among all GPUs, an average benchmark score of 0, and no benchmark entries or nearest rivals listed, the data indicates this card occupies a purely functional niche in the database, defined entirely by its specifications rather than measured performance.

Benchmark Performance

The benchmark data for the GeForce 8400 GS PCI is stark: it holds an average benchmark score of 0, placing it at the 50th percentile among all GPUs tracked. This score is not a measure of competitive failure but rather a reflection of its classification; the card produces no recorded benchmark results, meaning any performance analysis must rely entirely on its architectural characteristics. The shading throughput is rated at 22.40 GFLOPS for FP32 operations, which is a theoretical ceiling that modern integrated graphics would eclipse by orders of magnitude, though no direct rival percentages exist in the data to quantify this gap.

The pixel rate of 2.268 GPixel/s and texture rate of 2.268 GTexel/s are identical, indicating a balanced but severely limited pipeline. With 8 shading units, 4 texture mapping units (TMUs), and 4 render output units (ROPs), the card is architecturally constrained to handle resolutions and detail levels from an era when 1024x768 was standard. In practice, the data suggests this card cannot sustain playable frame rates in any title released after its 2007 generation, and its lack of any benchmark percentile information relative to peers means the database treats it as a non-entity for comparative scoring.

Memory Subsystem

The memory configuration is a clear bottleneck: 512 MB of DDR2 VRAM on a 64-bit bus, yielding a bandwidth of 5.328 GB/s. The memory clock runs at 333 MHz, translating to 666 Mbps effective. This bandwidth is minuscule by any modern standard, and it severely limits the card’s ability to handle high-resolution textures or large frame buffers. At 1080p or higher, the 512 MB capacity would be exhausted by modern game assets, forcing constant swapping to system memory over the PCI bus, which would cripple performance.

For high-resolution workloads, the data indicates this card is unsuitable; the 64-bit bus width means memory transactions are halved compared to even 128-bit counterparts of the same era. The 5.328 GB/s bandwidth is roughly sufficient for 720p or lower resolutions with legacy titles, but the lack of any benchmark entries means there is no empirical evidence to suggest it can manage even those scenarios without significant stutter. The DDR2 type further compounds latency issues, making the memory subsystem the primary reason this card is relegated to 2D desktop duties rather than 3D acceleration.

Ray Tracing and Feature Set

The GeForce 8400 GS PCI has no dedicated ray tracing cores and no tensor cores, as these technologies were introduced over a decade later. Its feature set is limited to the Tesla architecture’s capabilities, which include DirectX 11.1 support at the 10_0 feature level and OpenGL 3.3. There is no Vulkan support listed, meaning the card cannot run any modern graphics API that relies on explicit multi-threading or lower-level hardware control.

The DirectX 11.1 (10_0) designation is notable: it indicates the card supports the DirectX 11 runtime but only with feature level 10_0 hardware, which omits tessellation, compute shaders, and other DX11-era effects. This means even if a game could technically launch under DX11, it would run with the feature set of a DirectX 10 card, lacking the graphical enhancements that define later titles. The absence of Vulkan support further isolates the card from any current cross-platform titles, and the lack of RT cores means hardware-accelerated ray tracing is entirely out of the question.

Power and Cooling

The thermal design power (TDP) is rated at 25 W, which is exceptionally low even for the era. This low power draw allows the card to be entirely passive-capable, though the data lists no specific cooler type. The card requires no power connectors, drawing all its power from the PCI slot itself, and the suggested PSU is a modest 200 W unit. This makes it one of the least power-hungry discrete GPUs ever produced, suitable for legacy office machines with weak power supplies.

The physical dimensions are 170 mm in length, 70 mm in height, and 19 mm in width, occupying a single slot. The slot width and lack of power connectors mean installation is straightforward in almost any desktop chassis from the mid-2000s onward. The 25 W TDP also means cooling is trivial; a simple heatsink without a fan would suffice, though the data does not specify whether such a passive solution is standard. The PCI bus interface further limits power delivery, but the card’s modest requirements are well within those constraints.

How It Compares

The data provides no nearest rivals, benchmark scores, or deltaPct values for the GeForce 8400 GS PCI. This absence is itself a statement: the card does not compete with any other product in the database on a performance basis. Its predecessor, the GeForce 7 PCIe series, and its successor, the GeForce 9 series, are listed in the data but without any comparative metrics. The card’s 50th percentile ranking is a statistical artifact of having no benchmark entries, not a measure of mid-pack performance.

Without rival comparisons, the only contextual anchors are its release date of December 2007 and its end-of-life production status. The card exists in a vacuum, outperformed by every subsequent integrated GPU and discrete card released in the intervening years. The lack of any nearestRivals data suggests the database has classified it as a unique, non-competitive entity, and therefore any attempt to position it against peers would be speculative. The data simply show a card that was entry-level at launch and has since been superseded by every product that followed.

Who Should Consider It

The GeForce 8400 GS PCI is not suitable for any modern gaming workload. The 22.40 GFLOPS FP32 throughput and 5.328 GB/s memory bandwidth cannot handle 1080p resolution in any title from the past decade, and the absence of benchmark entries confirms no measurable gaming performance exists. The card is appropriate only for basic 2D desktop environments, legacy operating systems, or as a display output device for servers that require a video signal but no 3D acceleration.

For users with a 2007-era system running Windows XP or earlier, the card could serve as a replacement for failed integrated graphics, providing output at resolutions up to 1024x768 or 1280x1024 for office productivity. The DirectX 10_0 feature level means it can run very old games from the early 2000s at low settings, but the data does not support any claim of playable frame rates. The 50th percentile ranking, while meaningless for performance, does indicate the card is not an outlier in the database—it is one of many legacy parts that have been retired from active consideration.

FAQ

Q: What is the maximum supported DirectX version?

A: The card supports DirectX 11.1 but only at the 10_0 feature level, which excludes tessellation and compute shaders.

Q: Does the card support Vulkan?

A: No, Vulkan support is not listed in the data; the only graphics APIs are DirectX 11.1 (10_0) and OpenGL 3.3.

Q: How much power does the card require?

A: The TDP is 25 W, with a suggested PSU of 200 W, and it requires no external power connectors.

Q: What is the memory bandwidth?

A: The memory bandwidth is 5.328 GB/s, derived from 512 MB of DDR2 on a 64-bit bus at 333 MHz (666 Mbps effective).

Q: Can this card handle 1080p gaming?

A: The data shows no benchmark entries and a peak FP32 throughput of 22.40 GFLOPS, which is insufficient for 1080p in any modern title; it is suited only for low-resolution 2D output.

Q: What is the release date and production status?

A: The card was released on December 3, 2007, and is now marked as end-of-life, with a successor in the GeForce 9 series.

The AMD Equivalent of GeForce 8400 GS PCI

Looking for a similar graphics card from AMD? The AMD Radeon RX 480 offers comparable performance and features in the AMD lineup.

AMD Radeon RX 480

AMD • 8 GB VRAM

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