Tesla C870 vs Quadro K620

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance ranking	561	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.22	no data
Architecture	Maxwell (2014−2018)	Tesla (2006−2010)
GPU code name	GM107	G80
Market segment	Workstation	Workstation
Release date	22 July 2014 (9 years ago)	2 May 2007 (17 years ago)
Launch price (MSRP)	$189.89	$1,499
Current price	$286 (1.5x MSRP)	$170 (0.1x MSRP)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	384	128
Core clock speed	1058 MHz	600 MHz
Boost clock speed	1124 MHz	no data
Number of transistors	1,870 million	681 million
Manufacturing process technology	28 nm	90 nm
Power consumption (TDP)	41 Watt	171 Watt
Texture fill rate	26.98	38.40
Floating-point performance	863.2 gflops	345.6 gflops

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 2.0 x16	PCIe 1.0 x16
Length	160 mm	no data
Width	1" (2.5 cm)	2-slot
Supplementary power connectors	None	2x 6-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	128 Bit	GDDR3
Maximum RAM amount	2 GB	1536 MB
Memory bus width	128 Bit	384 Bit
Memory clock speed	1800 MHz	1600 MHz
Memory bandwidth	Up to 29 GB/s	76.8 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	DVI-I DP	No outputs
Number of simultaneous displays	4	no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Vision Pro	+	no data
Mosaic	+	no data
nView Desktop Management	+	no data

API compatibility

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

DirectX	12	11.1 (10_0)
Shader Model	5	4.0
OpenGL	4.5	3.3
OpenCL	1.2	1.1
Vulkan	+	N/A
CUDA	5.0	+

Pros & cons summary

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Recency	22 July 2014	2 May 2007
Cost	$189.89	$1499
Maximum RAM amount	2 GB	1536 MB
Chip lithography	28 nm	90 nm
Power consumption (TDP)	41 Watt	171 Watt

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