Tesla K20c vs Radeon RX 580

Place in the ranking	244	490
Place by popularity	1	not in top-100
Cost-effectiveness evaluation	18.56	0.37
Power efficiency	8.51	2.73
Architecture	GCN 4.0 (2016−2020)	Kepler (2012−2018)
GPU code name	Polaris 20	GK110
Market segment	Desktop	Workstation
Release date	18 April 2017 (7 years ago)	12 November 2012 (12 years ago)
Launch price (MSRP)	$229	$3,199

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 580 has 4916% 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	2304	2496
Core clock speed	1257 MHz	706 MHz
Boost clock speed	1340 MHz	no data
Number of transistors	5,700 million	7,080 million
Manufacturing process technology	14 nm	28 nm
Power consumption (TDP)	185 Watt	225 Watt
Texture fill rate	193.0	146.8
Floating-point processing power	6.175 TFLOPS	3.524 TFLOPS
ROPs	32	40
TMUs	144	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 x16	PCIe 2.0 x16
Length	241 mm	267 mm
Width	2-slot	2-slot
Supplementary power connectors	1x 8-pin	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	8 GB	5 GB
Memory bus width	256 Bit	320 Bit
Memory clock speed	2000 MHz	1300 MHz
Memory bandwidth	256.0 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 HDMI, 3x 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	97 +177%	35−40 −177%
1440p	40 +186%	14−16 −186%
4K	35 +192%	12−14 −192%

Cost per frame, $

1080p	2.36	91.40
1440p	5.73	228.50
4K	6.54	266.58

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

35−40
+164%

14−16

−164%

Full HD
Medium Preset

Assassin's Creed Odyssey	58 +176%	21−24 −176%
Assassin's Creed Valhalla	35−40 +179%	14−16 −179%
Battlefield 5	138 +176%	50−55 −176%
Call of Duty: Modern Warfare	45−50 +161%	18−20 −161%
Cyberpunk 2077	35−40 +164%	14−16 −164%
Far Cry 5	83 +177%	30−33 −177%
Far Cry New Dawn	83 +177%	30−33 −177%
Forza Horizon 4	294 +167%	110−120 −167%
Hitman 3	45−50 +188%	16−18 −188%
Horizon Zero Dawn	100−110 +170%	40−45 −170%
Metro Exodus	111 +178%	40−45 −178%
Red Dead Redemption 2	60−65 +186%	21−24 −186%
Shadow of the Tomb Raider	122 +171%	45−50 −171%
Watch Dogs: Legion	95−100 +183%	35−40 −183%

Full HD
High Preset

Assassin's Creed Odyssey	101 +189%	35−40 −189%
Assassin's Creed Valhalla	35−40 +179%	14−16 −179%
Battlefield 5	113 +183%	40−45 −183%
Call of Duty: Modern Warfare	45−50 +161%	18−20 −161%
Cyberpunk 2077	35−40 +164%	14−16 −164%
Far Cry 5	69 +188%	24−27 −188%
Far Cry New Dawn	64 +167%	24−27 −167%
Forza Horizon 4	270 +170%	100−105 −170%
Hitman 3	45−50 +188%	16−18 −188%
Horizon Zero Dawn	100−110 +170%	40−45 −170%
Metro Exodus	87 +190%	30−33 −190%
Red Dead Redemption 2	60−65 +186%	21−24 −186%
Shadow of the Tomb Raider	75−80 +157%	30−33 −157%
The Witcher 3: Wild Hunt	50−55 +178%	18−20 −178%
Watch Dogs: Legion	95−100 +183%	35−40 −183%

Full HD
Ultra Preset

Assassin's Creed Odyssey	34 +183%	12−14 −183%
Assassin's Creed Valhalla	35−40 +179%	14−16 −179%
Call of Duty: Modern Warfare	45−50 +161%	18−20 −161%
Cyberpunk 2077	35−40 +164%	14−16 −164%
Far Cry 5	49 +172%	18−20 −172%
Forza Horizon 4	82 +173%	30−33 −173%
Hitman 3	45−50 +188%	16−18 −188%
Horizon Zero Dawn	100−110 +170%	40−45 −170%
Shadow of the Tomb Raider	75−80 +157%	30−33 −157%
The Witcher 3: Wild Hunt	44 +175%	16−18 −175%
Watch Dogs: Legion	95−100 +183%	35−40 −183%

Full HD
Epic Preset

Red Dead Redemption 2

60−65
+186%

21−24

−186%

1440p
High Preset

Battlefield 5	40−45 +175%	16−18 −175%
Far Cry New Dawn	35−40 +192%	12−14 −192%

1440p
Ultra Preset

Assassin's Creed Odyssey	24−27 +167%	9−10 −167%
Assassin's Creed Valhalla	21−24 +175%	8−9 −175%
Call of Duty: Modern Warfare	24−27 +160%	10−11 −160%
Cyberpunk 2077	14−16 +180%	5−6 −180%
Far Cry 5	24−27 +160%	10−11 −160%
Forza Horizon 4	130−140 +160%	50−55 −160%
Hitman 3	27−30 +170%	10−11 −170%
Horizon Zero Dawn	45−50 +161%	18−20 −161%
Metro Exodus	53 +194%	18−20 −194%
Shadow of the Tomb Raider	45−50 +172%	18−20 −172%
The Witcher 3: Wild Hunt	27−30 +180%	10−11 −180%
Watch Dogs: Legion	130−140 +164%	50−55 −164%

1440p
Epic Preset

Red Dead Redemption 2

35−40
+171%

14−16

−171%

4K
High Preset

Battlefield 5	37 +164%	14−16 −164%
Far Cry New Dawn	22 +175%	8−9 −175%
Hitman 3	18−20 +157%	7−8 −157%
Horizon Zero Dawn	110−120 +164%	45−50 −164%
Metro Exodus	33 +175%	12−14 −175%
The Witcher 3: Wild Hunt	27 +170%	10−11 −170%

4K
Ultra Preset

Assassin's Creed Odyssey	18 +157%	7−8 −157%
Assassin's Creed Valhalla	12−14 +200%	4−5 −200%
Call of Duty: Modern Warfare	12−14 +160%	5−6 −160%
Cyberpunk 2077	5−6 +400%	1−2 −400%
Far Cry 5	16 +167%	6−7 −167%
Forza Horizon 4	41 +193%	14−16 −193%
Shadow of the Tomb Raider	27−30 +170%	10−11 −170%
Watch Dogs: Legion	10−11 +233%	3−4 −233%

4K
Epic Preset

Red Dead Redemption 2

20−22

+186%

7−8
−186%

This is how RX 580 and Tesla K20c compete in popular games:

RX 580 is 177% faster in 1080p
RX 580 is 186% faster in 1440p
RX 580 is 192% faster in 4K

Pros & cons summary

Performance score	22.97	8.95
Recency	18 April 2017	12 November 2012
Maximum RAM amount	8 GB	5 GB
Chip lithography	14 nm	28 nm
Power consumption (TDP)	185 Watt	225 Watt

RX 580 has a 156.6% higher aggregate performance score, an age advantage of 4 years, a 60% higher maximum VRAM amount, a 100% more advanced lithography process, and 21.6% lower power consumption.

The Radeon RX 580 is our recommended choice as it beats the Tesla K20c in performance tests.

Be aware that Radeon RX 580 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.