Review: Nvidia GeForce GTX 670

The Nvidia GeForce GTX 670 costs less than it's similar sibling, the Nvidia GeForce GTX 680, but more than the AMD Radeon HD 7950 - how does it stack up for gamers?

Paul Urquhart | Thursday, August 23 2012

Product type: Graphics card
Editors rating: Editor's rating: 4.5

Nvidia GeForce GTX 670

RRP incl GST: $650-$750
Contact: nvidia.com

AT A GLANCE
  • Editor's Choice award
  • Kepler-based high-end graphics card

Nearly equals the performance of the GTX 680, and the lowest dollars-per-FPS we've seen in a high-end card.

Editor's rating: 4.5

At the heart of all of Nvidia's high-end GTX 600 series cards is the 28nm GeForce Kepler GPU, codenamed GK104.

This GTX 670 and GTX 680 are almost identical, but the GTX 670 has fewer CUDA cores (the processing cores in the GPU) and it runs at a slightly lower clock speed – 1344 cores running at 915MHz base clock compared to the GTX 680's 1536 CUDA cores at a base clock of 1006MHz. This slightly less demanding graphics core puts the GTX670's power requirements at 170W, allowing it to run off dual 6-pin power connectors which almost any modern power supply can accommodate.

A new feature in this series of graphics cards is what Nvidia calls a ‘boost clock’. Similar to Intel’s Turbo Boost feature, the GTX 670 can boost its clock speed up to 980MHz where power and temperature limits allow. This is done automatically out of the box with no user intervention or configuration required.

Physically the GTX 670 is a not-insignificant 250mm in length, and an aft-mounted fan exhausts heated air out of the system in a relatively quiet manner via aluminium fins connected to the GPU via three large heatpipes. Connection-wise there are two dual-link DVI ports, one full size HDMI and one full size DisplayPort.

These ports can be used to run up to three monitors off a single GTX 670, although one of those monitors must be connected to the DisplayPort output. If you don’t have monitors with DisplayPort inputs, then you will need to purchase an active DisplayPort to DVI adaptor at a cost of roughly $70.

SpecificationsNvidia GeForce GTX670Nvidia GeForce GTX 680
Shader cores13441536
Shader cores
clock speed
915MHz1006MHz
Boost clock980MHz1058MHz
Memory clock
speed (eff.)
6008MHz6008MHz
Memory bus256bit256bit
RAM2GB2GB
Rated power draw170W195W

For less than a 10% cut in clock speed compared to the GTX 680, the GTX670 costs 20% less – many shops sell the GTX 670 for between $650 and $750 NZD. I imagine this is cannibalising sales of the GTX 680 and I wouldn’t be surprised to see the more expensive card pulled from the shelves sooner or later, perhaps to be replaced with a GTX 685: much like Nvidia did a few years ago when they introduced the GTX 285.

The GTX 670 is the best bang-for-buck high-end graphics card available right now – stunning performance even at high resolution, yet at a realistic price for serious gamers without serious trust funds.


Benchmark

Settings

AMD HD Radeon HD 7950

Nvidia GeForce GTX 670

Nvidia GeForce GTX680

3DMark11 (Score)

Performance (720p)

7027

8314

8887

Extreme (1080p)

2338

2948

3113

Heaven 3.0 (FPS)

Default (1080p)

87.8

110.4

119.5

Default (1440p)

55.7

66.3

72.9

S.T.A.L.K.E.R. Call of Pripyat (FPS)

Ultra 4xAA, HBAO
High + Tess. (1080p)

86.4

100.3

103.8

Ultra 4xAA, HBAO
High + Tess. (1440p)

52.5

60.7

63.6

Battlefield 3 (FPS)

Ultra (1080p)

49.9

59.5

60.7

Ultra (1440p)

33.9

37.5

38.6

DiRT3 (FPS)

Ultra + 8xAA (1080p)

78.6

100.4

102.1

Ultra + 4xAA (1440p)

57.7

71.3

79.5

Trackmania Nations Forever (FPS)

Very high, 4xAA (1080p)

96.2

137

140

Very high, 8xAA, 16xAF (1440p)

75.9

100

101

Anno 2070 (FPS)

Very high , Vsync off (1080p)

65.5

79.7

88.5

Very high , Vsync off (1440p)

40.8

50.7

56.9

Average FPS

1080p (1920 x 1080)

77.4

97.9

102.4

1440p (2560 x 1440)

52.8

64.4

68.8

Power consumption

Idle (desktop)

83

89

87


Load (Furmark 1080p burn-in)

268

274

315

Lowest retail price

NZD, At time of writing

$600

$650

$900

Dollars per FPS
(lower is better)

1080p (1920 x 1080)

$7.75

$6.64

$8.79

1440p (2560 x 1440)

$11.37

$10.09

$13.09
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