Comparison between GPU and MIC

Attribute	NVIDIA GPU	Intel mic
Single-core	Stream processor/Cuda Core Each core runs a thread.	X86 Core Each core supports up to four hardware threads.
Clock speed	Close to 1 GHz	1.0-1.1 GHz
Number of cores	Dozens to thousands	57-61
Degree of Parallelism	Multi-Level Parallel Processing of grid, block, and thread Fine-grained parallelism (number of threads> Number of cores) The thread overhead is 0.	Thread + Vectoring Number of threads <= (cores-1) * 4 Vectorized width 512bit (single precision: 16, double precision: 8)
Memory size (GB)	Up to 12 GB	6/8/16 GB
Memory bandwidth	288 Gb/s	240-352 Gb/s
Data Access Requirements	The data accessed by threads in the warp is continuously optimal.	The data accessed in the thread is continuous. If vectorized, it is the best continuous data access.
Peak Performance	Single precision: up to 4.29 tflops Dual precision: up to 1.43 tflops Calculation method: Command throughput * Number of computing units * Frequency	Precision: 2.0-2.2 tflops Dual precision: 1.0-1.1 tflops Sample DP calculation: 16 DP flops/clock/Core * 61 cores * 1.1 GHz = 1073.6 gflop/s
Programming Language	Cuda, opencl, and openacc	OpenMP, opencl, cilk, and openacc
Programming Mode	Offload	Offload, native, and distributed ric
Power Consumption	235 million	225-300 W
Bandwidth PCI-E	2.0 (8 Gb/s for each two-way operation) 3.0 (16 Gb/s each in two directions)	2.0 (8 Gb/s for each two-way operation) Currently, 3.0 is not supported.
Operating Platform	PC, server, workstation You can configure a geforce card on the PC to run Cuda at a low cost and high performance.	Server Relatively professional with high costs and few configurations for individuals
Product	Geforce: several hundred to several thousand yuan, used on the PC (current mainstream GTX710-780) Tesla: 1 w-3w yuan, used on servers (currently mainstream k20, k40) Quadro: tens of thousands of RMB, used on workstation (currently mainstream Quadro k4100m, Quadro k3100m, Quadro k2100m, Quadro k610m)	Knc: About 1 w-2w Current mainstream 7110 P, 5110 P, 3110 P
Supported Operating Systems	Windows: XP, win7, Win8 Linux x86: fedora, opensuse, RHEL/centos, sles, steamos, Ubuntu, etc. Linux arm: Ubuntu Mac OSX	Windows: Windows 8 server, win 7, win 8 Linux: redhat6.0 and above, Suse sles11 and above
Built-in OS on the card	None	Built-in UOS with independent IP addresses

Comparison between GPU and MIC