NVIDIA GeForce GTX 980 Ti vs AMD Radeon HD 6870 1600SP Edition
GPU Comparison Result
Below are the results of a comparison of NVIDIA GeForce GTX 980 Ti and AMD Radeon HD 6870 1600SP Edition video cards based on key performance characteristics, as well as power consumption and much more.
Advantages
- Larger Memory Size: 6GB (6GB vs 1024MB)
- Higher Bandwidth: 336.6 GB/s (336.6 GB/s vs 134.4 GB/s)
- More Shading Units: 2816 (2816 vs 1600)
- Newer Launch Date: June 2015 (June 2015 vs January 2013)
Basic
NVIDIA
Label Name
AMD
June 2015
Launch Date
January 2013
Desktop
Platform
Desktop
GeForce GTX 980 Ti
Model Name
Radeon HD 6870 1600SP Edition
GeForce 900
Generation
Northern Islands
1000MHz
Base Clock
-
1076MHz
Boost Clock
-
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Memory Specifications
6GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
384bit
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
1753MHz
Memory Clock
1050MHz
336.6 GB/s
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
103.3 GPixel/s
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.
27.20 GPixel/s
189.4 GTexel/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.
68.00 GTexel/s
189.4 GFLOPS
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.
544.0 GFLOPS
6.181
TFLOPS
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.
2.774
TFLOPS
Miscellaneous
2816
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.
1600
48 KB (per SMM)
L1 Cache
8 KB (per CU)
3MB
L2 Cache
512KB
250W
TDP
175W
1.3
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
3.0
OpenCL Version
1.2
Benchmarks
FP32 (float)
/ TFLOPS
GeForce GTX 980 Ti
6.181
+123%
Radeon HD 6870 1600SP Edition
2.774