AMD Radeon HD 7970 X2
About GPU
The AMD Radeon HD 7970 X2 GPU is a powerful and high-performance graphics card designed for desktop gaming and professional applications. With a massive 3GB of GDDR5 memory and a memory clock speed of 1375MHz, this GPU is capable of handling the most demanding graphics tasks with ease. The 2048 shading units and 768KB of L2 cache further contribute to the overall performance of the card, allowing for smooth and efficient rendering of complex graphics.
One of the standout features of the Radeon HD 7970 X2 is its impressive theoretical performance of 3.789 TFLOPS. This makes it an excellent choice for gaming enthusiasts and professionals who require a GPU that can deliver high frame rates and smooth gameplay.
However, it is important to note that the TDP of the Radeon HD 7970 X2 is quite high at 500W. This means that it requires a robust and well-cooled system to operate optimally, and may not be suitable for more power-constrained setups.
Overall, the AMD Radeon HD 7970 X2 GPU is a solid choice for those looking for a high-performance graphics card that can handle the latest games and demanding professional applications. Its generous memory size, fast memory type, and impressive theoretical performance make it a compelling option for those in need of a powerful GPU. However, potential buyers should be mindful of its relatively high power consumption and plan their system setup accordingly.
Basic
Label Name
AMD
Platform
Desktop
Launch Date
August 2012
Model Name
Radeon HD 7970 X2
Generation
Southern Islands
Bus Interface
PCIe 3.0 x16
Transistors
4,313 million
Compute Units
32
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.
128
Foundry
TSMC
Process Size
28 nm
Architecture
GCN 1.0
Memory Specifications
Memory Size
3GB
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
1375MHz
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.
264.0 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.
29.60 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.
118.4 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.
947.2 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.
3.865
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.
2048
L1 Cache
16 KB (per CU)
L2 Cache
768KB
TDP
500W
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
OpenCL Version
1.2
OpenGL
4.6
DirectX
12 (11_1)
Power Connectors
3x 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.
32
Suggested PSU
900W
Benchmarks
FP32 (float)
Score
3.865
TFLOPS
Compared to Other GPU
FP32 (float)
/ TFLOPS