NVIDIA GeForce GT 745A
NVIDIA graphics card specifications and benchmark scores
At a Glance
NVIDIANVIDIA GeForce GT 745A Specifications
GeForce GT 745A GPU Core
Shader units and compute resources
The NVIDIA GeForce GT 745A 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 745A Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the GeForce GT 745A'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 745A by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
NVIDIA's GeForce GT 745A Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The GeForce GT 745A'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 745A by NVIDIA Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the GT 745A, 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 745A Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the NVIDIA GeForce GT 745A 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.
Kepler Architecture & Process
Manufacturing and design details
The NVIDIA GeForce GT 745A is built on NVIDIA's Kepler 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 745A will perform in GPU benchmarks compared to previous generations.
NVIDIA's GeForce GT 745A Power & Thermal
TDP and power requirements
Power specifications for the NVIDIA GeForce GT 745A 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 745A to maintain boost clocks without throttling.
GeForce GT 745A by NVIDIA Physical & Connectivity
Dimensions and outputs
Physical dimensions of the NVIDIA GeForce GT 745A 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 745A. 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 745A Product Information
Release and pricing details
The NVIDIA GeForce GT 745A 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 745A by NVIDIA represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
GeForce GT 745A Benchmark Scores
No benchmark data available for this GPU.
About NVIDIA GeForce GT 745A
How It Compares
The NVIDIA GeForce GT 745A occupies a peculiar position in the database: it has no nearest rivals listed, no benchmark scores, and an average benchmark score of zero. This places it at the 50th percentile of all GPUs, which is a statistical midpoint that suggests it is neither a dominant performer nor a complete outlier. The absence of rival data means the comparison must be drawn from its architectural lineage and raw specifications rather than direct head-to-head measurements.
Without nearestRivals entries, the GT 745A stands alone in the current dataset. Its position at the 50th percentile is notable because it implies that half of all GPUs tracked are slower and half are faster — a neutral standing that aligns with its modest specifications. The GK107 chip is a small Kepler die, and the 28 nm process from TSMC is a mature node for its era. The transistor density of 10.8M per square millimeter across a 118 mm² die yields 1,270 million transistors, which is a compact design by modern standards but was typical for a mobile-oriented part in its generation.
The GT 745A is an end-of-life product, succeeded by the GeForce 800A and preceded by the GeForce 600A. Its release in August 2013 places it in the mid-cycle of the GeForce 700A series. The lack of benchmark data is unusual — most GPUs in the database have at least some measured scores — and this absence means the percentile ranking is derived from specification-based estimation rather than observed performance. For a database user, this signals that the GT 745A is a legacy part with limited empirical coverage.
Ray Tracing and Feature Set
The GT 745A does not include ray tracing cores or tensor cores — these fields are null in the fact pack. This is expected for a Kepler-based GPU from 2013, as hardware-accelerated ray tracing and AI tensor operations were introduced several generations later. The absence of these features means the card relies entirely on traditional rasterization for graphics rendering.
In terms of API support, the GT 745A supports DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175. The DirectX 12 support is qualified with the "(11_0)" notation, which indicates feature level 11_0 rather than full DirectX 12 feature levels. This is a crucial distinction — the card can run DirectX 12 applications but only at the feature set defined by the earlier DirectX 11 specification. For modern games that require higher feature levels, this could be a limitation.
Vulkan 1.2.175 support is relatively recent, which is interesting for a GPU from 2013. This suggests that driver updates have extended the API compatibility beyond what was originally available at launch. OpenGL 4.6 is also a current version, indicating ongoing driver maintenance despite the card's end-of-life status. However, the lack of ray tracing and tensor cores means any workload relying on those technologies will not run on this hardware.
Benchmark Performance
The GT 745A has no benchmark scores in the fact pack — the benchmarks array is empty, and the average benchmark score is zero. This is a significant data gap. The percentile ranking of 50 is therefore based on the card's specifications relative to other GPUs in the database, not on measured performance. Without nearest rivals or percentage deltas, there is no way to quantify how it compares to specific competing products.
What can be inferred comes from the raw compute metrics. The card delivers 702.7 GFLOPS of FP32 performance, which is a modest figure for a GPU with 384 shading units running at a base clock of 837 MHz and a boost clock of 915 MHz. The pixel rate is 7.320 GPixel/s, and the texture rate is 29.28 GTexel/s. These numbers suggest a card that handles 1080p gaming at low to medium settings in titles from its era, but would struggle with modern workloads.
The lack of benchmark data is itself a finding. It indicates that the GT 745A was not widely tested or that its performance was not notable enough to warrant inclusion in the database's benchmark suite. For a database user, this means any performance claims must be derived from the specification sheet rather than observed results. The 50th percentile ranking provides a rough anchor point, but without delta percentages or rival scores, the precision of that ranking is questionable.
FAQ
Q: Does the GT 745A support hardware ray tracing?
A: No. The rtCores field is null, meaning the card has no dedicated ray tracing cores. Ray tracing would need to be performed in software, which is impractical for a GPU of this performance class.
Q: What is the maximum DirectX feature level supported?
A: The card supports DirectX 12 but only at feature level 11_0. This means it can run DirectX 12 applications that are compatible with the older DirectX 11 feature set, but not those requiring newer features.
Q: How much memory does the GT 745A have and what type is it?
A: It has 2 GB of DDR3 memory on a 128-bit bus, providing a memory bandwidth of 28.80 GB/s. The memory clock is 900 MHz, which translates to 1800 Mbps effective.
Q: What is the transistor count and die size?
A: The GK107 chip contains 1,270 million transistors on a die size of 118 mm², manufactured on TSMC's 28 nm process. This yields a transistor density of 10.8M per square millimeter.
Q: Is the GT 745A still in production?
A: No. The production status is listed as "End-of-life." It was released on August 25, 2013, and has since been succeeded by the GeForce 800A.
Q: What is the power consumption and connector requirement?
A: The TDP is 33 W, and the card requires no power connectors. It uses an MXM Module slot width, which is a laptop-oriented form factor.
Memory Subsystem
The GT 745A is equipped with 2 GB of DDR3 memory, which is a critical specification for understanding its performance ceiling. The 128-bit memory bus is narrow by modern standards, and the resulting bandwidth of 28.80 GB/s is the single most limiting factor for high-resolution gaming. The memory clock runs at 900 MHz, or 1800 Mbps effective, which is typical for DDR3 but far below the speeds of GDDR5 or newer memory types.
For 1080p gaming, 2 GB of VRAM is barely sufficient for modern titles, and the low bandwidth means texture streaming and high-resolution assets will cause stuttering. At 1440p or 4K, the memory subsystem would become a severe bottleneck, likely rendering most modern games unplayable at acceptable frame rates. The 28.80 GB/s bandwidth is a fraction of what even entry-level GPUs offer today, and this disparity grows as resolution increases.
The DDR3 memory type also affects power efficiency. While the 33 W TDP is low, the memory subsystem requires more power per byte transferred compared to newer standards. The 128-bit bus width means the card can only address so much data per clock cycle, and with a modest memory clock, the total throughput is constrained. For a card from 2013, this was acceptable for its intended mobile use case, but it is a clear weakness in any modern context.
Power and Cooling
The GT 745A has a TDP of 33 W, which is exceptionally low and reflects its mobile-oriented design as an MXM Module. This power draw requires no external power connectors — the card draws all its power from the PCIe 3.0 x16 slot. The fact pack lists no suggested PSU wattage, which is unsurprising given that the card is designed for laptop or small-form-factor systems where power delivery is handled by the host platform.
The low TDP has implications for cooling. A 33 W GPU can be cooled by a passive heatsink or a small low-profile fan, which makes it suitable for thin and light laptops. The MXM Module form factor is standardized for mobile workstations and gaming laptops, allowing for replacement or upgrade in compatible systems. The absence of power connectors simplifies installation, as there is no need to route additional cabling.
The PCIe 3.0 x16 interface provides sufficient bandwidth for the card's memory and compute capabilities. The fact that the card has no suggested PSU recommendation reinforces that it is not intended for desktop builds where power supply sizing is a consideration. For a database user, this means the GT 745A is best understood as a component of a larger mobile system, not as a standalone desktop GPU.
Who Should Consider It
The GT 745A is a card for a very specific audience: users of older laptops or small-form-factor systems that need a basic discrete GPU for light gaming or media playback. The 50th percentile ranking and the 33 W TDP suggest that this card is not a performance part, but it is not a complete budget placeholder either. The 2 GB DDR3 memory and 28.80 GB/s bandwidth limit it to 720p or 1080p gaming at low settings, and only for titles from its release era or earlier.
For modern gaming, the card is inadequate. The DirectX 12 (11_0) feature level and the lack of ray tracing cores mean it cannot run many current games, and those that do run will require reduced resolutions and graphical settings. The 702.7 GFLOPS of FP32 performance is dwarfed by even entry-level GPUs from the last several years, and the 7.320 GPixel/s pixel rate caps fill-rate-intensive effects.
The card's strengths lie in its efficiency and simplicity. The 33 W TDP means it generates minimal heat and requires no power connectors, making it a drop-in solution for compatible MXM slots. For users who have a laptop with a failed or inadequate integrated GPU and need a replacement, the GT 745A could serve as a stopgap. For anyone else, the absence of benchmark scores and the modest specifications make it difficult to recommend for any workload beyond basic 2D acceleration or video playback. The 50th percentile ranking is a statistical middle ground, but the real-world performance is firmly anchored in the past.
The AMD Equivalent of GeForce GT 745A
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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