Tesla K40c vs GeForce GTX 660

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Aggregate performance score

We've compared GeForce GTX 660 with Tesla K40c, including specs and performance data.

GTX 660
2012
2 GB GDDR5, 140 Watt
8.98

Tesla K40c outperforms GTX 660 by a moderate 12% based on our aggregate benchmark results.

Primary details

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

Place in the ranking452429
Place by popularity73not in top-100
Cost-effectiveness evaluation2.980.27
Power efficiency5.083.25
ArchitectureKepler (2012−2018)Kepler (2012−2018)
GPU code nameGK106GK180
Market segmentDesktopWorkstation
Release date6 September 2012 (12 years ago)8 October 2013 (11 years ago)
Launch price (MSRP)$229 $7,699

Cost-effectiveness evaluation

The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.

GTX 660 has 1004% better value for money than Tesla K40c.

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 cores9602880
Core clock speed980 MHz745 MHz
Boost clock speed1033 MHz876 MHz
Number of transistors2,540 million7,080 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)140 Watt245 Watt
Texture fill rate82.56210.2
Floating-point processing power1.981 TFLOPS5.046 TFLOPS
ROPs2448
TMUs80240

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).

Bus supportPCI Express 3.0no data
InterfacePCIe 3.0 x16PCIe 3.0 x16
Length241 mm267 mm
Height4.376" (11.1 cm)no data
Width2-slot2-slot
Supplementary power connectors1x 6-pin1x 6-pin + 1x 8-pin
SLI options+-

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 typeGDDR5GDDR5
Maximum RAM amount2 GB12 GB
Memory bus width192-bit GDDR5384 Bit
Memory clock speed6.0 GB/s1502 MHz
Memory bandwidth144.2 GB/s288.4 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 ConnectorsOne Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPortNo outputs
Multi monitor support4 displaysno data
HDMI+-
HDCP+-
Maximum VGA resolution2048x1536no data
Audio input for HDMIInternalno data

Supported technologies

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

3D Blu-Ray+-
3D Gaming+-
3D Vision+-

API and SDK compatibility

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

DirectX12 (11_0)12 (11_0)
Shader Model5.15.1
OpenGL4.34.6
OpenCL1.21.2
Vulkan1.1.1261.1.103
CUDA+3.5

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score.

GTX 660 8.98
Tesla K40c 10.06
+12%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

GTX 660 4014
Tesla K40c 4494
+12%

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

GTX 660 11373
Tesla K40c 17468
+53.6%

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 HD47
−6.4%
50−55
+6.4%

Cost per frame, $

1080p4.87
+3060%
153.98
−3060%
  • GTX 660 has 3060% lower cost per frame in 1080p

Pros & cons summary


Performance score 8.98 10.06
Recency 6 September 2012 8 October 2013
Maximum RAM amount 2 GB 12 GB
Power consumption (TDP) 140 Watt 245 Watt

GTX 660 has 75% lower power consumption.

Tesla K40c, on the other hand, has a 12% higher aggregate performance score, an age advantage of 1 year, and a 500% higher maximum VRAM amount.

The Tesla K40c is our recommended choice as it beats the GeForce GTX 660 in performance tests.

Be aware that GeForce GTX 660 is a desktop card while Tesla K40c is a workstation one.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA GeForce GTX 660
GeForce GTX 660
NVIDIA Tesla K40c
Tesla K40c

Other comparisons

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.7 4483 votes

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Comments

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