Tesla K20c vs Radeon RX 560

Place in the ranking	460	488
Place by popularity	77	not in top-100
Cost-effectiveness evaluation	1.48	0.34
Power efficiency	9.25	2.91
Architecture	GCN 4.0 (2016−2020)	Kepler (2012−2018)
GPU code name	Polaris 21	GK110
Market segment	Desktop	Workstation
Release date	18 April 2017 (7 years ago)	12 November 2012 (11 years ago)
Launch price (MSRP)	$99	$3,199

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 560 has 335% better value for money than Tesla K20c.

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	1024	2496
Core clock speed	1175 MHz	706 MHz
Boost clock speed	1275 MHz	no data
Number of transistors	3,000 million	7,080 million
Manufacturing process technology	14 nm	28 nm
Power consumption (TDP)	75 Watt	225 Watt
Texture fill rate	81.60	146.8
Floating-point processing power	2.611 TFLOPS	3.524 TFLOPS
ROPs	16	40
TMUs	64	208

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Interface	PCIe 3.0 x8	PCIe 2.0 x16
Length	170 mm	267 mm
Width	2-slot	2-slot
Supplementary power connectors	None	1x 6-pin + 1x 8-pin

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	GDDR5
Maximum RAM amount	4 GB	5 GB
Memory bus width	128 Bit	320 Bit
Memory clock speed	1750 MHz	1300 MHz
Memory bandwidth	112.0 GB/s	208.0 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort	No outputs
HDMI	+	-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 (12_0)	12 (11_0)
Shader Model	6.4	5.1
OpenGL	4.6	4.6
OpenCL	2.0	1.2
Vulkan	1.2.131	1.1.126
CUDA	-	3.5

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD

35
+16.7%

30−35

−16.7%

Pros & cons summary

Performance score	9.45	8.66
Recency	18 April 2017	12 November 2012
Maximum RAM amount	4 GB	5 GB
Chip lithography	14 nm	28 nm
Power consumption (TDP)	75 Watt	225 Watt

RX 560 has a 9.1% higher aggregate performance score, an age advantage of 4 years, a 100% more advanced lithography process, and 200% lower power consumption.

Tesla K20c, on the other hand, has a 25% higher maximum VRAM amount.

Given the minimal performance differences, no clear winner can be declared between Radeon RX 560 and Tesla K20c.

Be aware that Radeon RX 560 is a desktop card while Tesla K20c is a workstation one.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.