AMD Radeon HD 8870M
About GPU
The AMD Radeon HD 8870M is a solid mid-range GPU designed for use in mobile platforms. With a base clock speed of 725MHz and a boost clock speed of 775MHz, it offers respectable performance for gaming and multimedia tasks. The 2GB of GDDR5 memory with a clock speed of 1125MHz ensures smooth operation and fast data access, further enhancing the overall performance of the GPU.
With 640 shading units and 256KB of L2 cache, the Radeon HD 8870M is able to handle complex visual tasks efficiently. The theoretical performance of 0.992 TFLOPS makes it suitable for running modern games at moderate to high settings, as well as handling demanding professional applications.
One of the key advantages of the Radeon HD 8870M is its power efficiency, as it is designed for mobile platforms. While the exact TDP is unknown, it is expected to be within a reasonable range for laptops and other mobile devices, allowing for a balance of performance and battery life.
In real-world usage, the Radeon HD 8870M delivers smooth and consistent performance in gaming and multimedia tasks. It is able to handle high-definition video playback and can run modern games at respectable frame rates. Overall, the AMD Radeon HD 8870M is a solid choice for users looking for a reliable mid-range GPU for their mobile computing needs.
Basic
Label Name
AMD
Platform
Mobile
Launch Date
April 2013
Model Name
Radeon HD 8870M
Generation
Solar System
Base Clock
725MHz
Boost Clock
775MHz
Bus Interface
PCIe 3.0 x16
Transistors
1,500 million
Compute Units
10
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
GCN 1.0
Memory Specifications
Memory Size
2GB
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.
128bit
Memory Clock
1125MHz
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.
72.00 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.
12.40 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.
31.00 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.
62.00 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.
1.012
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
16 KB (per CU)
L2 Cache
256KB
TDP
Unknown
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.
1.2.170
OpenCL Version
2.1 (1.2)
OpenGL
4.6
DirectX
12 (11_1)
Shader Model
6.5 (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
1.012
TFLOPS
OpenCL
Score
9907
Compared to Other GPU
FP32 (float)
/ TFLOPS
OpenCL