NVIDIA GeForce GTX 850A
The NVIDIA GeForce GTX 850A is a popular choice for gamers and professionals who require robust graphics processing capabilities on their mobile devices. With a base clock speed of 902MHz and a boost clock of 936MHz, this GPU delivers impressive performance for demanding applications and games.
The 2GB DDR3 memory provides ample capacity for handling high-resolution textures and complex 3D models, while the 900MHz memory clock ensures snappy performance. The 640 shading units allow for detailed and realistic rendering of visual effects, making the GTX 850A suitable for gaming and content creation tasks.
The 2MB L2 cache helps to minimize latency and keep data flowing smoothly, contributing to the overall responsiveness and efficiency of the GPU. With a TDP of 45W, the GTX 850A strikes a good balance between performance and power efficiency, making it a practical choice for mobile devices.
In terms of theoretical performance, the GTX 850A is capable of delivering up to 1.198 TFLOPS, further underscoring its suitability for demanding workloads.
Overall, the NVIDIA GeForce GTX 850A is a solid choice for users who want to experience seamless graphics performance on their mobile devices. Whether for gaming, design, or video editing, this GPU delivers the power and efficiency required to handle modern applications with ease.
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Basic
Label Name
NVIDIA
Platform
Mobile
Launch Date
March 2014
Model Name
GeForce GTX 850A
Generation
GeForce 800A
Base Clock
902MHz
Boost Clock
936MHz
Bus Interface
PCIe 3.0 x16
Transistors
1,870 million
TMUs
?
Texture Mapping Units (TMUs) serve as components of the GPU, which are capable of rotating, scaling, and distorting binary images, and then placing them as textures onto any plane of a given 3D model. This process is called texture mapping.
40
Foundry
TSMC
Process Size
28 nm
Architecture
Maxwell
Memory Specifications
Memory Size
2GB
Memory Type
DDR3
Memory Bus
?
The memory bus width refers to the number of bits of data that the video memory can transfer within a single clock cycle. The larger the bus width, the greater the amount of data that can be transmitted instantaneously, making it one of the crucial parameters of video memory. The memory bandwidth is calculated as: Memory Bandwidth = Memory Frequency x Memory Bus Width / 8. Therefore, when the memory frequencies are similar, the memory bus width will determine the size of the memory bandwidth.
128bit
Memory Clock
900MHz
Bandwidth
?
Memory bandwidth refers to the data transfer rate between the graphics chip and the video memory. It is measured in bytes per second, and the formula to calculate it is: memory bandwidth = working frequency × memory bus width / 8 bits.
28.80 GB/s
Theoretical Performance
Pixel Rate
?
Pixel fill rate refers to the number of pixels a graphics processing unit (GPU) can render per second, measured in MPixels/s (million pixels per second) or GPixels/s (billion pixels per second). It is the most commonly used metric to evaluate the pixel processing performance of a graphics card.
14.98 GPixel/s
Texture Rate
?
Texture fill rate refers to the number of texture map elements (texels) that a GPU can map to pixels in a single second.
37.44 GTexel/s
FP64 (double)
?
An important metric for measuring GPU performance is floating-point computing capability. Double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy, while single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.
37.44 GFLOPS
FP32 (float)
?
An important metric for measuring GPU performance is floating-point computing capability. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.
1.174
TFLOPS
Miscellaneous
Shading Units
?
The most fundamental processing unit is the Streaming Processor (SP), where specific instructions and tasks are executed. GPUs perform parallel computing, which means multiple SPs work simultaneously to process tasks.
640
L1 Cache
64 KB (per SMM)
L2 Cache
2MB
TDP
45W
Vulkan Version
?
Vulkan is a cross-platform graphics and compute API by Khronos Group, offering high performance and low CPU overhead. It lets developers control the GPU directly, reduces rendering overhead, and supports multi-threading and multi-core processors.
1.3
OpenCL Version
3.0
OpenGL
4.6
DirectX
12 (11_0)
CUDA
5.0
Shader Model
5.1
ROPs
?
The Raster Operations Pipeline (ROPs) is primarily responsible for handling lighting and reflection calculations in games, as well as managing effects like anti-aliasing (AA), high resolution, smoke, and fire. The more demanding the anti-aliasing and lighting effects in a game, the higher the performance requirements for the ROPs; otherwise, it may result in a sharp drop in frame rate.
16
Benchmarks
FP32 (float)
Score
1.174
TFLOPS
Compared to Other GPU
FP32 (float)
/ TFLOPS