NVIDIA Tesla K20s vs AMD Radeon HD 8670A

Comparative analysis of NVIDIA Tesla K20s and AMD Radeon HD 8670A videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory.

NVIDIA Tesla K20s

AMD Radeon HD 8670A

Differences

Reasons to consider the NVIDIA Tesla K20s

Around 18% higher core clock speed: 706 MHz vs 600 MHz
12.2x more texture fill rate: 146.8 GTexel / s vs 12 GTexel / s
7.8x more pipelines: 2496 vs 320
9.2x better floating-point performance: 3,524 gflops vs 384.0 gflops
5x more maximum memory size: 5 GB vs 1 GB
2.6x more memory clock speed: 5200 MHz vs 2000 MHz

Core clock speed	706 MHz vs 600 MHz
Texture fill rate	146.8 GTexel / s vs 12 GTexel / s
Pipelines	2496 vs 320
Floating-point performance	3,524 gflops vs 384.0 gflops
Maximum memory size	5 GB vs 1 GB
Memory clock speed	5200 MHz vs 2000 MHz

Reasons to consider the AMD Radeon HD 8670A

5x lower typical power consumption: 45 Watt vs 225 Watt

Thermal Design Power (TDP)	45 Watt vs 225 Watt

Compare specifications (specs)

	NVIDIA Tesla K20s	AMD Radeon HD 8670A
Essentials
Architecture	Kepler	GCN 1.0
Code name	GK110	Mars
Launch date	18 February 2013	2 February 2013
Launch price (MSRP)	$3,199
Place in performance rating	not rated	not rated
Type	Workstation	Desktop
Technical info
Core clock speed	706 MHz	600 MHz
Floating-point performance	3,524 gflops	384.0 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	2496	320
Texture fill rate	146.8 GTexel / s	12 GTexel / s
Thermal Design Power (TDP)	225 Watt	45 Watt
Transistor count	7,080 million	1,040 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	MXM-A (3.0)
Length	267 mm
API support
DirectX	12.0 (11_0)	12.0 (11_1)
OpenGL	4.6	4.5
Memory
Maximum RAM amount	5 GB	1 GB
Memory bandwidth	208.0 GB / s	16 GB / s
Memory bus width	320 Bit	64 Bit
Memory clock speed	5200 MHz	2000 MHz
Memory type	GDDR5	DDR3