NVIDIA GeForce GT 420 OEM
NVIDIA graphics card specifications and benchmark scores
At a Glance
NVIDIANVIDIA GeForce GT 420 OEM Specifications
GeForce GT 420 OEM GPU Core
Shader units and compute resources
The NVIDIA GeForce GT 420 OEM 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.
GT 420 OEM Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the GeForce GT 420 OEM'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 GT 420 OEM by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
NVIDIA's GeForce GT 420 OEM Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The GeForce GT 420 OEM'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 GT 420 OEM by NVIDIA Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the GT 420 OEM, 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.
GT 420 OEM Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the NVIDIA GeForce GT 420 OEM 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.
Fermi Architecture & Process
Manufacturing and design details
The NVIDIA GeForce GT 420 OEM is built on NVIDIA's Fermi 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 GT 420 OEM will perform in GPU benchmarks compared to previous generations.
NVIDIA's GeForce GT 420 OEM Power & Thermal
TDP and power requirements
Power specifications for the NVIDIA GeForce GT 420 OEM 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 GT 420 OEM to maintain boost clocks without throttling.
GeForce GT 420 OEM by NVIDIA Physical & Connectivity
Dimensions and outputs
Physical dimensions of the NVIDIA GeForce GT 420 OEM 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 GT 420 OEM. 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 GT 420 OEM Product Information
Release and pricing details
The NVIDIA GeForce GT 420 OEM 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 GT 420 OEM by NVIDIA represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
GeForce GT 420 OEM Benchmark Scores
No benchmark data available for this GPU.
About NVIDIA GeForce GT 420 OEM
The NVIDIA GeForce GT 420 OEM is a 40 nm Fermi-architecture part built by TSMC, featuring 585 million transistors on a 116 mm² die with a transistor density of 5.0M per mm². It was released on September 2, 2010, as part of the GeForce 400 generation, positioned between the GeForce 200 predecessor and the GeForce 500 successor. The card is end-of-life and carries a 50th percentile rank among all GPUs in the database, though no benchmark scores are recorded for it. Its memory configuration consists of 1024 MB of DDR3 on a 128-bit bus, running at 900 MHz (1800 Mbps effective), yielding a bandwidth of 28.80 GB/s. The GPU packs 48 shading units, 4 texture mapping units, and 4 ROPs, with peak rates of 1.400 GPixel/s and 2.800 GTexel/s. Its FP32 compute throughput is 134.4 GFLOPS. The card has a TDP of 50 W, requires no power connectors, and is rated for a 250 W power supply. It occupies a single slot, measures 145 mm (5.7 inches) in length, and connects via PCIe 2.0 x16. Display outputs include one DVI, one HDMI 1.3a, and one VGA. The API support includes DirectX 12 (feature level 11_0) and OpenGL 4.6, but no Vulkan support is listed.
How It Compares
The database contains no nearest-rival entries for the GeForce GT 420 OEM, so direct percentage comparisons against specific competing GPUs are unavailable. The only positional indicator is its 50th percentile rank across all GPUs tracked, which places it exactly at the median of the performance distribution. This means an equal number of GPUs in the database are faster and slower than this card. Because no benchmark scores are recorded, the percentile rank is derived from the card's specifications rather than measured performance, but it still offers a relative sense of its standing. As a member of the GeForce 400 family, it sits below the higher-end parts of that generation, and its modest compute and memory figures align with an entry-level positioning. Without rival data, the card cannot be expressed as a percentage ahead of or behind any specific product, but its median percentile indicates it is neither a standout nor a bottom-tier part in the overall landscape.
Ray Tracing and Feature Set
The GeForce GT 420 OEM does not include any dedicated ray tracing cores or tensor cores; both fields are null in the specification. This is consistent with its Fermi architecture, which predates the introduction of such hardware. The card does support DirectX 12, but only at feature level 11_0, meaning it can run DirectX 12 applications that are designed for that feature level, but it lacks the full DirectX 12 feature set. OpenGL 4.6 is supported, providing compatibility with modern OpenGL titles. Vulkan support is not listed, so the card is limited to DirectX and OpenGL for graphics APIs. The display outputs are a single DVI, a single HDMI 1.3a, and a single VGA, allowing connection to a variety of monitors. The HDMI 1.3a standard supports 1080p video output, but the card's compute capabilities are far below what would be needed for high-refresh or high-resolution gaming. The lack of power connectors and the 50 W TDP indicate that the card is designed for low-power systems, drawing all its power from the PCIe slot. The absence of tensor cores also means that any AI-accelerated features are not available, and the card relies entirely on its fixed-function shading units for all processing.
Benchmark Performance
No benchmark scores are recorded for the GeForce GT 420 OEM, so the analysis must rely on the card's theoretical specifications and its percentile rank. The FP32 compute throughput is 134.4 GFLOPS, a figure that is low by modern standards but reflects the card's entry-level positioning. The pixel rate of 1.400 GPixel/s and texture rate of 2.800 GTexel/s further indicate a very limited fillrate, which would constrain performance in any resolution above 720p or with high texture detail. The memory bandwidth of 28.80 GB/s, derived from a 128-bit bus and DDR3 at 1800 Mbps effective, is similarly modest. The 48 shading units and 4 ROPs suggest that the card can handle basic 3D rendering, but its throughput is insufficient for demanding workloads. The 50th percentile rank implies that it sits in the middle of all GPUs in the database, but given the absence of measured scores, this rank is likely based on a combination of specifications and historical data. In practice, the card would be expected to deliver playable frame rates only in older or less demanding titles at low resolutions and settings. The data shows a clear gap between this card and even mid-range GPUs of its own generation, as evidenced by the low fillrate and compute numbers. Without rival deltas, no percentage advantage or disadvantage can be quantified, but the raw specifications paint a picture of a part that is best suited for basic desktop use or as a fallback display adapter rather than for gaming.
FAQ
Q: What is the process node and foundry for the GeForce GT 420 OEM?
A: The card is built on a 40 nm process at TSMC, with a die size of 116 mm² and 585 million transistors.
Q: How much memory does the GT 420 OEM have, and what type is it?
A: It has 1024 MB of DDR3 memory on a 128-bit bus, running at 900 MHz (1800 Mbps effective), providing a bandwidth of 28.80 GB/s.
Q: Does the card support DirectX 12?
A: Yes, it supports DirectX 12, but only at feature level 11_0, which is a reduced set of features compared to full DirectX 12.
Q: What is the TDP and power requirement for this card?
A: The TDP is 50 W, it requires no power connectors, and the suggested power supply is 250 W.
Q: What is the release date of the GeForce GT 420 OEM?
A: It was released on September 2, 2010.
Q: What display outputs are available?
A: The card has one DVI, one HDMI 1.3a, and one VGA output.
Who Should Consider It
The GeForce GT 420 OEM is a card that, based on its specifications, is best suited for users who need a basic display output for a legacy system or a low-power build. Its 50th percentile rank places it at the median of all GPUs in the database, but that rank is not accompanied by any benchmark scores, indicating that its practical performance is likely limited. The FP32 throughput of 134.4 GFLOPS and a memory bandwidth of 28.80 GB/s are sufficient for 2D desktop applications, video playback, and very light 3D workloads. For gaming, the card would be constrained to older titles or extremely low settings at 720p or below, though no specific resolution figures are provided in the data. The lack of ray tracing and tensor cores, combined with the absence of Vulkan support, further narrows its appeal to users who do not require modern graphics features. The 50 W TDP and lack of power connectors make it an easy drop-in for systems with a 250 W power supply, and its single-slot, 145 mm length allows it to fit in compact cases. However, given its end-of-life status and the availability of more capable integrated graphics in many modern CPUs, the GT 420 OEM is primarily relevant for maintaining older systems or for use as a secondary output card. Users seeking any level of modern gaming performance would need to look at GPUs with higher compute and memory bandwidth, as the data shows this card is far below the thresholds required for contemporary 3D applications.
The AMD Equivalent of GeForce GT 420 OEM
Looking for a similar graphics card from AMD? The AMD Radeon RX 480 offers comparable performance and features in the AMD lineup.
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