ATI Radeon HD 4890
About GPU
The ATI Radeon HD 4890 GPU is a powerful and capable graphics card that delivers exceptional performance for desktop gaming and multimedia applications. With a generous 1024MB of GDDR5 memory and a memory clock of 975MHz, this GPU offers fast and reliable processing for high-resolution graphics and smooth gameplay.
One of the standout features of the ATI Radeon HD 4890 is its 800 shading units, which allow for advanced rendering and realistic visual effects. This, combined with a 256KB L2 cache, ensures that the GPU can handle demanding graphics tasks with ease.
In terms of power consumption, the TDP of 190W may be on the higher side, but the theoretical performance of 1.36 TFLOPS makes it well worth it for those looking for top-notch graphics performance.
The ATI Radeon HD 4890 is an excellent choice for gamers and multimedia enthusiasts who want to experience high-quality graphics and smooth gameplay without breaking the bank. Its impressive performance and reliability make it a solid investment for those looking to upgrade their desktop PC's graphics capabilities.
Overall, the ATI Radeon HD 4890 GPU offers a balance of power, performance, and value, making it a worthy choice for anyone in need of a powerful graphics solution for their desktop system. Whether you're a casual gamer or a serious multimedia enthusiast, this GPU has the horsepower to handle anything you throw at it.
Basic
Label Name
ATI
Platform
Desktop
Launch Date
April 2009
Model Name
Radeon HD 4890
Generation
Radeon R700
Bus Interface
PCIe 2.0 x16
Memory Specifications
Memory Size
1024MB
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.
256bit
Memory Clock
975MHz
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.
124.8 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.
13.60 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.
34.00 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.
272.0 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.
1.333
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.
800
L1 Cache
16 KB (per CU)
L2 Cache
256KB
TDP
190W
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
Benchmarks
FP32 (float)
Score
1.333
TFLOPS
Compared to Other GPU
FP32 (float)
/ TFLOPS