Top 500

AMD Radeon HD 6870 X2

AMD Radeon HD 6870 X2

AMD Radeon HD 6870 X2 is a Desktop video accelerator from AMD. It began to be released in July 2011. It also has a memory frequency of 1050MHz. Its characteristics, as well as benchmark results, are presented in more detail below.

Top Desktop GPU: 371

Basic

Label Name
AMD
Platform
Desktop
Launch Date
July 2011
Model Name
Radeon HD 6870 X2
Generation
Northern Islands
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.
1120
Transistors
1,700 million
Compute Units
14
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.
56
L1 Cache
8 KB (per CU)
L2 Cache
512KB
Bus Interface
PCIe 2.0 x16
Foundry
TSMC
Process Size
40 nm
Architecture
TeraScale 2
TDP
300W

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
1050MHz
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.
134.4 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.
28.80 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.
50.40 GTexel/s
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.
2.016 TFlops

Miscellaneous

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
1.2
OpenGL
4.4
DirectX
11.2 (11_0)
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.
32
Shader Model
5.0
Suggested PSU
700W

FP32 (float)

2.016 TFlops

Compared to Other GPU

0%
1%
23%
Better then 0% GPU over the past year
Better then 1% GPU over the past 3 years
Better then 23% GPU

SiliconCat Rating

371
Ranks 371 among Desktop GPU on our website
782
Ranks 782 among all GPU on our website
FP32 (float)
Iris Xe Graphics 96EU
Intel, January 2022
2.149 TFlops
Radeon RX Vega 11 Mobile
AMD, October 2019
2.05 TFlops
Radeon HD 6870 X2
AMD, July 2011
2.016 TFlops
FireStream 9350
AMD, June 2010
1.976 TFlops
1.923 TFlops