AMD Radeon RX 6400
The AMD Radeon RX 6400 is a budget-friendly GPU that delivers impressive performance for its price point. With a base clock of 1923MHz and a boost clock of 2321MHz, it offers solid clock speeds for smooth gaming and graphics-intensive applications. The 4GB GDDR6 memory and a memory clock of 2000MHz ensure sufficient memory bandwidth for handling demanding tasks.
The 768 shading units and 1024KB L2 cache contribute to the GPU's efficient rendering capabilities, while the 53W TDP makes it an energy-efficient choice for desktop systems. The theoretical performance of 3.565 TFLOPS showcases the GPU's ability to handle complex calculations and graphics processing.
In benchmark tests, the AMD Radeon RX 6400 performs admirably. It scored 3590 in 3DMark Time Spy, indicating its competence in handling modern gaming workloads. In real-world gaming scenarios, it achieved respectable frame rates, such as 48 fps in Battlefield 5 at 1080p, 21 fps in Cyberpunk 2077 at 1080p, and 35 fps in Shadow of the Tomb Raider at 1080p.
Overall, the AMD Radeon RX 6400 is a compelling option for budget-conscious gamers and users who require a capable GPU for content creation and productivity tasks. Its competitive performance, power efficiency, and affordable price make it a noteworthy choice for entry-level and mid-range desktop systems.
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Basic
Label Name
AMD
Platform
Desktop
Launch Date
January 2022
Model Name
Radeon RX 6400
Generation
Navi II
Base Clock
1923MHz
Boost Clock
2321MHz
Bus Interface
PCIe 4.0 x4
Transistors
5,400 million
RT Cores
12
Compute Units
12
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.
48
Foundry
TSMC
Process Size
6 nm
Architecture
RDNA 2.0
Memory Specifications
Memory Size
4GB
Memory Type
GDDR6
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.
64bit
Memory Clock
2000MHz
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.
128.0 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.
74.27 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.
111.4 GTexel/s
FP16 (half)
?
An important metric for measuring GPU performance is floating-point computing capability. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable. 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.
7.130 TFLOPS
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.
222.8 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.
3.636
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.
768
L1 Cache
128 KB per Array
L2 Cache
1024KB
TDP
53W
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.
1.3
OpenCL Version
2.2
OpenGL
4.6
DirectX
12 Ultimate (12_2)
Power Connectors
None
Shader Model
6.6
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
250W
Benchmarks
Shadow of the Tomb Raider 2160p
Score
8
fps
Shadow of the Tomb Raider 1440p
Score
20
fps
Shadow of the Tomb Raider 1080p
Score
36
fps
Cyberpunk 2077 2160p
Score
8
fps
Cyberpunk 2077 1440p
Score
11
fps
Cyberpunk 2077 1080p
Score
21
fps
Battlefield 5 2160p
Score
19
fps
Battlefield 5 1440p
Score
35
fps
Battlefield 5 1080p
Score
49
fps
FP32 (float)
Score
3.636
TFLOPS
3DMark Time Spy
Score
3662
Blender
Score
294
Vulkan
Score
38421
OpenCL
Score
32217
Compared to Other GPU
Shadow of the Tomb Raider 2160p
/ fps
Shadow of the Tomb Raider 1440p
/ fps
Shadow of the Tomb Raider 1080p
/ fps
Cyberpunk 2077 2160p
/ fps
Cyberpunk 2077 1440p
/ fps
Cyberpunk 2077 1080p
/ fps
Battlefield 5 2160p
/ fps
Battlefield 5 1440p
/ fps
Battlefield 5 1080p
/ fps
FP32 (float)
/ TFLOPS
3DMark Time Spy
Blender
Vulkan
OpenCL