NVIDIA GeForce GTX 490
The NVIDIA GeForce GTX 490 GPU is a powerful graphics processing unit designed for desktop gaming and high-performance computing. With a memory size of 1536MB and GDDR5 memory type, it provides fast and efficient data processing for demanding applications and games. The 854MHz memory clock ensures smooth and responsive graphics rendering, while the 480 shading units contribute to exceptional visual quality and detail.
The 768KB L2 cache helps to minimize data latency and maximize processing speed, resulting in a more fluid and immersive user experience. With a TDP of 365W, this GPU is designed for high-performance systems and can handle intense workloads with ease. The theoretical performance of 1.166 TFLOPS ensures that it can deliver impressive visual and computational capabilities, making it well-suited for both gaming and professional applications.
Overall, the NVIDIA GeForce GTX 490 GPU is a top-of-the-line graphics card that offers exceptional performance and reliability for desktop users. Whether you're a hardcore gamer, a content creator, or a professional in need of high-performance computing capabilities, this GPU delivers the power and efficiency required to tackle demanding tasks. Its combination of high memory size, fast memory clock, and advanced shading units make it a formidable choice for anyone in need of a high-performance graphics solution.
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Basic
Label Name
NVIDIA
Platform
Desktop
Model Name
GeForce GTX 490
Generation
GeForce 400
Bus Interface
PCIe 2.0 x16
Transistors
3,100 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.
60
Foundry
TSMC
Process Size
40 nm
Architecture
Fermi
Memory Specifications
Memory Size
1536MB
Memory Type
GDDR5
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.
384bit
Memory Clock
854MHz
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.
164.0 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.
18.24 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.
36.48 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.
145.8 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.
1.189
TFLOPS
Miscellaneous
SM Count
?
Multiple Streaming Processors (SPs), along with other resources, form a Streaming Multiprocessor (SM), which is also referred to as a GPU's major core. These additional resources include components such as warp schedulers, registers, and shared memory. The SM can be considered the heart of the GPU, similar to a CPU core, with registers and shared memory being scarce resources within the SM.
15
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.
480
L1 Cache
64 KB (per SM)
L2 Cache
768KB
TDP
365W
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.
N/A
OpenCL Version
1.1
OpenGL
4.6
DirectX
12 (11_0)
CUDA
2.0
Power Connectors
2x 8-pin
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.
48
Suggested PSU
750W
Benchmarks
FP32 (float)
Score
1.189
TFLOPS
Compared to Other GPU
FP32 (float)
/ TFLOPS