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NVIDIA GeForce GT 645M

NVIDIA GeForce GT 645M

The NVIDIA GeForce GT 645M is a mid-range, DirectX 11.1 compatible graphics card that was announced in the third quarter of 2012 for laptops. It is a faster clocked GeForce GT 640M and therefore also based on the Kepler GK107 architecture manufactured in 28nm at TSMC. The graphics card uses a 128-Bit wide memory interface with either the more common but slower DDR3 for VRAM or the more expensive and faster GDDR5.

Architecture

The Kepler architecture is the successor to the Fermi architecture that first appeared in laptops with the GeForce 400M series. The GK107 Kepler core offers two shader blocks, called SMX, each with 192 shaders for a total of 384 shader cores that are clocked at the same speed as the processor core. Although more shader cores are available in the Kepler architecture as compared to the Fermi design, the Kepler shaders are still expected to be up to twice as power efficient. However, due to the missing hot clock of the shader domain, two shaders of a Kepler chip are as fast as one shader of a Fermi chip (the latter is clocked twice as fast). PCIe 3.0 is now supported by the mobile Kepler series and an optional Turbo mode can automatically overclock the Nvidia card by a theoretical 15 percent if the laptop cooling system allows it. The implementation of this boost mode is done in the BIOS, but it is ultimately dependent upon the manufacturer of the laptop.

Performance

The gaming performance of the GeForce GT 645M equipped with DDR3 graphics memory depends on the 3D clock in the used laptop and is slightly above an average GT 640M. Therefore demanding games like Battlefield 3 are playable in 1366x768 and medium settings. Older and less demanding games, such as Modern Warfare 3, are easily playable with maxed out settings and high resolutions.

Features

The improved feature set now includes support for up to 4 active displays. Furthermore, high resolution monitors of up to 3840x2160 pixels can now be connected using DisplayPort 1.2 or HDMI 1.4a if available. HD-Audio codecs, such as Dolby TrueHD and DTS-HD, can be transmitted via bitstream mode through the HDMI port. However, as most laptops will feature Optimus, the integrated GPU will likely have direct control over the display ports and may limit the feature set available by the Nvidia Kepler cards.

The 5th generation PureVideo HD video processor (VP5) is also integrated in the GK107 core and offers hardware decoding of HD videos. Common codecs such as MPEG-1/2, MPEG-4 ASP, H.264 and VC1/WMV9 are fully supported up to 4K resolutions while VC1 and MPEG-4 are supported up to 1080p. Two streams can be decoded in parallel for features such as Picture-in-Picture. Another novelty is the inclusion of a dedicated video encoding engine similar to Intel QuickSync that can be accessed by the NVENCI API.

The power consumption of the GeForce GT 645M should be similar to the GT 640M and therefore a bit below that of the older GeForce GT 540M and more in line with the GT 525M. As a result, the Nvidia GPU is best suited for multimedia notebooks 14-inches or greater.

GeForce GT 600M Series

GeForce GT 650M SLI compare 768 @ 0.79 - 0.84 GHz2x 128 Bit @ 4000 MHz
GeForce GT 650M compare 384 @ 0.74 - 0.9 GHz128 Bit @ 1800 - 4000 MHz
GeForce GT 645M 384 @ 0.71 GHz128 Bit @ 1800 MHz
GeForce GT 640M compare 384 @ 0.63 - 0.65 GHz128 Bit @ 1800 - 4000 MHz
GeForce GT 640M LE compare 384 @ 0.5 GHz128 Bit @ 1800 - 4000 MHz
GeForce GT 635M compare 144 @ 0.66 - 0.75 GHz128/192 Bit @ 1800 MHz
GeForce GT 630M compare 96 @ 0.67 GHz128 Bit @ 1800 MHz
GeForce GT 625M compare 96 @ 0.63 GHz64 Bit @ 1800 MHz
GeForce GT 620M compare 96 @ 0.63 - 0.72 GHz64 / 128 Bit @ 1800 MHz
CodenameN13P-GS
ArchitectureKepler
Pipelines384 - unified
Core Speed710 MHz
Memory Speed1800 MHz
Memory Bus Width128 Bit
Memory TypeDDR3
Max. Amount of Memory2048 MB
Shared Memoryno
APIDirectX 11, Shader 5.0
technology28 nm
FeaturesOptimus, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Notebook Sizemedium sized
Date of Announcement22.03.2012
Link to Manufacturer Pagewww.geforce.com

Benchmarks

Performance Rating - 3DMark 11 + Fire Strike + Time Spy
0.5 pt (2%)
3DMark - 3DMark Cloud Gate Score
min: 5466     avg: 6537     median: 6537 (7%)     max: 7608 Points
3DMark - 3DMark Fire Strike Standard Score
min: 1106     avg: 1147     median: 1146.5 (2%)     max: 1187 Points
3DMark - 3DMark Fire Strike Standard Graphics
min: 1126     avg: 1152     median: 1151.5 (1%)     max: 1177 Points
3DMark 11 - 3DM11 Performance Score
min: 1853     avg: 1976     median: 1962.5 (3%)     max: 2127 Points
3DMark 11 - 3DM11 Performance GPU
min: 1753     avg: 1846     median: 1844.5 (2%)     max: 1941 Points
3DMark Vantage
3DM Vant. Perf. total +
3DMark Vantage - 3DM Vant. Perf. total
min: 6806     avg: 7458     median: 7356.5 (2%)     max: 8312 Points
3DM Vant. Perf. GPU no PhysX +
3DMark Vantage - 3DM Vant. Perf. GPU no PhysX
min: 6446     avg: 6673     median: 6641 (4%)     max: 6962 Points
3DMark 06 3DMark 06 - Standard 1280x1024 +
3DMark 06
min: 10282     avg: 11229     median: 11189 (15%)     max: 12254 Points
Unigine Heaven 3.0 - Unigine Heaven 3.0 DX 11
min: 16.6     avg: 17.7     median: 17.7 (6%)     max: 18.7 fps
SPECviewperf 11
specvp11 snx-01 +
SPECviewperf 11 - specvp11 snx-01
min: 1.74     avg: 2.4     median: 2.7 (2%)     max: 2.77 fps
specvp11 tcvis-02 +
SPECviewperf 11 - specvp11 tcvis-02
min: 0.82     avg: 0.9     median: 0.9 (1%)     max: 0.95 fps
specvp11 sw-02 +
SPECviewperf 11 - specvp11 sw-02
min: 7.45     avg: 8.3     median: 8 (6%)     max: 9.37 fps
specvp11 proe-05 +
SPECviewperf 11 - specvp11 proe-05
min: 0.84     avg: 1     median: 0.9 (1%)     max: 1.22 fps
specvp11 maya-03 +
SPECviewperf 11 - specvp11 maya-03
min: 7.82     avg: 9.8     median: 9.8 (7%)     max: 11.64 fps
specvp11 lightwave-01 +
SPECviewperf 11 - specvp11 lightwave-01
min: 8.28     avg: 11.4     median: 10.2 (11%)     max: 15.6 fps
specvp11 ensight-04 +
SPECviewperf 11 - specvp11 ensight-04
min: 9.31     avg: 10.9     median: 10.7 (5%)     max: 12.56 fps
specvp11 catia-03 +
SPECviewperf 11 - specvp11 catia-03
min: 3.52     avg: 4.5     median: 4.4 (2%)     max: 5.57 fps
Cinebench R10 Cinebench R10 Shading (32bit) +
Cinebench R10 - Cinebench R10 Shading (32bit)
min: 5263     avg: 5548     median: 5548 (4%)     max: 5833 points
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit +
Cinebench R11.5 - Cinebench R11.5 OpenGL 64 Bit
min: 21.2     avg: 33.5     median: 35.3 (12%)     max: 42.21 fps
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.

low 1280x720
83.9  fps    + Compare
med. 1366x768
46.9  fps    + Compare
high 1366x768
40.3  fps    + Compare
ultra 1920x1080
14.3  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
207.6  fps    + Compare
med. 1366x768
69.6  fps    + Compare
high 1366x768
47.7  fps    + Compare
ultra 1920x1080
17.7  fps    + Compare
» With all tested laptops playable in detail settings high.
SimCity

SimCity

2013
low 1024x768
46  fps    + Compare
med. 1366x768
24  fps    + Compare
high 1366x768
19.4  fps    + Compare
ultra 1920x1080
11.7  fps    + Compare
» With all tested laptops playable in detail settings low.
low 1024x768
97.2  fps    + Compare
med. 1366x768
52.7  fps    + Compare
high 1366x768
34.2  fps    + Compare
ultra 1920x1080
13.1  fps    + Compare
» With all tested laptops playable in detail settings med..
Crysis 3

Crysis 3

2013
low 1024x768
46.6  fps    + Compare
med. 1366x768
27.6  fps    + Compare
high 1366x768
18.6  fps    + Compare
ultra 1920x1080
7  fps    + Compare
» With all tested laptops playable in detail settings low.
low 1024x768
155.2  fps    + Compare
med. 1366x768
73.3  fps    + Compare
high 1366x768
55.4  fps    + Compare
ultra 1920x1080
32.5  fps    + Compare
» With all tested laptops playable in detail settings high.
Far Cry 3

Far Cry 3

2012
low 1024x768
51.1  fps    + Compare
med. 1366x768
41.1  fps    + Compare
high 1366x768
22.4  fps    + Compare
ultra 1920x1080
7.3  fps    + Compare
» With all tested laptops playable in detail settings med..
med. 1366x768
45  fps    + Compare
high 1366x768
39.4  fps    + Compare
ultra 1920x1080
11.4  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
48.9  fps    + Compare
med. 1366x768
33.4  fps    + Compare
high 1366x768
17.4  fps    + Compare
ultra 1920x1080
7.4  fps    + Compare
» With all tested laptops playable in detail settings low.
low 1024x768
92.8  fps    + Compare
med. 1366x768
70.9  fps    + Compare
high 1366x768
41.4  fps    + Compare
ultra 1920x1080
26  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
60  fps    + Compare
med. 1366x768
45.4  fps    + Compare
high 1366x768
29.3  fps    + Compare
ultra 1920x1080
16.1  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1024x768
60.4  fps    + Compare
med. 1366x768
40.7  fps    + Compare
high 1366x768
33.1  fps    + Compare
ultra 1920x1080
13.6  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1024x768
96.6  fps    + Compare
med. 1366x768
78.6  fps    + Compare
high 1366x768
70.6  fps    + Compare
ultra 1920x1080
42.1  fps    + Compare
» With all tested laptops playable in detail settings ultra.
low 1024x768
51.7  fps    + Compare
med. 1366x768
32.6 47.7 ~ 40 fps    + Compare
high 1366x768
26.6 39.7 ~ 33 fps    + Compare
ultra 1920x1080
15  fps    + Compare
» With most tested laptops playable in detail settings med..
Fifa 13

Fifa 13

2012
low 1024x768
311.3  fps    + Compare
med. 1366x768
206.6  fps    + Compare
high 1366x768
188.7  fps    + Compare
ultra 1920x1080
120.7  fps    + Compare
» With all tested laptops playable in detail settings ultra.
F1 2012

F1 2012

2012
low 1024x768
137  fps    + Compare
med. 1366x768
103  fps    + Compare
high 1366x768
81  fps    + Compare
ultra 1920x1080
28  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
81.2  fps    + Compare
med. 1366x768
64.4  fps    + Compare
high 1366x768
44.3  fps    + Compare
ultra 1920x1080
27.7  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
62.7  fps    + Compare
high 1366x768
28.7  fps    + Compare
ultra 1920x1080
11.4  fps    + Compare
» With all tested laptops playable in detail settings low.
low 1024x768
204.7  fps    + Compare
med. 1366x768
158.3  fps    + Compare
high 1366x768
103.8  fps    + Compare
ultra 1920x1080
58.2  fps    + Compare
» With all tested laptops playable in detail settings ultra.
med. 1366x768
61.4  fps    + Compare
ultra 1920x1080
35.4  fps    + Compare
» With all tested laptops playable in detail settings ultra.
low 1024x768
70.8 93.7 ~ 82 fps    + Compare
med. 1366x768
60 64.2 68.8 ~ 64 fps    + Compare
high 1366x768
24.9 26.3 26.5 ~ 26 fps    + Compare
ultra 1920x1080
6.4  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1024x768
44.8  fps    + Compare
med. 1366x768
44.4  fps    + Compare
high 1366x768
17.7  fps    + Compare
ultra 1920x1080
13.3  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1024x768
56.3 92.9 ~ 75 fps    + Compare
med. 1366x768
40.8 53.6 66.9 ~ 54 fps    + Compare
high 1366x768
38.7 39.6 49.8 ~ 43 fps    + Compare
ultra 1920x1080
17.2  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
139.7  fps    + Compare
med. 1366x768
90.3 93.3 ~ 92 fps    + Compare
high 1366x768
81 81.5 ~ 81 fps    + Compare
ultra 1920x1080
49.8  fps    + Compare
» With all tested laptops playable in detail settings ultra.
low 1024x768
47.8 52.8 ~ 50 fps    + Compare
med. 1366x768
32.2 37.4 ~ 35 fps    + Compare
high 1366x768
26.3 32.9 ~ 30 fps    + Compare
ultra 1920x1080
12.4  fps    + Compare
» With all tested laptops playable in detail settings low.
low 1280x720
60  fps    + Compare
high 1366x768
55.7  fps    + Compare
ultra 1920x1080
36.6  fps    + Compare
» With all tested laptops playable in detail settings ultra.
Alan Wake

Alan Wake

2012
low 1024x768
43.8  fps    + Compare
med. 1366x768
26.6  fps    + Compare
ultra 1920x1080
12.9  fps    + Compare
» With all tested laptops playable in detail settings low.
Anno 2070

Anno 2070

2011
low 1024x768
98 129 ~ 114 fps    + Compare
med. 1366x768
47.6 54.3 58.9 ~ 54 fps    + Compare
high 1366x768
33 33.5 37.7 ~ 35 fps    + Compare
ultra 1920x1080
16.9  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1280x720
62.9  fps    + Compare
med. 1366x768
45.9  fps    + Compare
high 1366x768
34.1  fps    + Compare
ultra 1920x1080
18.7  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1024x768
187  fps    + Compare
med. 1366x768
107.8  fps    + Compare
high 1366x768
62  fps    + Compare
ultra 1920x1080
34.3  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
56.6  fps    + Compare
med. 1366x768
38.2  fps    + Compare
high 1366x768
29.2  fps    + Compare
ultra 1920x1080
11.7  fps    + Compare
» With all tested laptops playable in detail settings med..
med. 1366x768
60  fps    + Compare
high 1366x768
25.1  fps    + Compare
» With all tested laptops playable in detail settings med..
Fifa 12

Fifa 12

2011
low 800x600
193.8  fps    + Compare
med. 1024x768
132.5 146.6 ~ 140 fps    + Compare
high 1360x768
93.8 115.9 ~ 105 fps    + Compare
» With all tested laptops playable in detail settings high.
Mafia 2

Mafia 2

2010
low 800x600
53.5  fps    + Compare
med. 1024x768
49.9 50.5 ~ 50 fps    + Compare
high 1360x768
43.9 45.7 ~ 45 fps    + Compare
» With all tested laptops playable in detail settings high.
med. 1360x768
43.3  fps    + Compare
high 1600x900
29.7  fps    + Compare
» With all tested laptops playable in detail settings med..
lowmed.highultraQHD4K
BioShock Infinite83.946.940.314.3
StarCraft II: Heart of the Swarm207.669.647.717.7
SimCity462419.411.7
Tomb Raider97.252.734.213.1
Crysis 346.627.618.67
Dead Space 3155.273.355.432.5
Far Cry 351.141.122.47.3
Assassin´s Creed III4539.411.4
Hitman: Absolution48.933.417.47.4
Call of Duty: Black Ops 292.870.941.426
Need for Speed: Most Wanted6045.429.316.1
Medal of Honor: Warfighter60.440.733.113.6
Dishonored96.678.670.642.1
World of Tanks v851.7403315
Fifa 13311.3206.6188.7120.7
F1 20121371038128
Borderlands 281.264.444.327.7
Guild Wars 262.728.711.4
Counter-Strike: GO204.7158.3103.858.2
Darksiders II61.435.4
Sleeping Dogs8264266.4
Max Payne 344.844.417.713.3
Dirt Showdown75544317.2
Diablo III139.7928149.8
Risen 2: Dark Waters50353012.4
Mass Effect 36055.736.6
Alan Wake43.826.612.9
Anno 2070114543516.9
The Elder Scrolls V: Skyrim62.945.934.118.7
CoD: Modern Warfare 3187107.86234.3
Battlefield 356.638.229.211.7
Batman: Arkham City6025.1
Fifa 12193.8140105
Mafia 253.55045
Metro 203343.329.7
< 30 fps
< 60 fps
< 120 fps
≥ 120 fps

10
13
8
3
16
11
3
11
15
6
1
23
7

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Notebook reviews with NVIDIA GeForce GT 645M graphics card

 

Review Lenovo IdeaPad Z500 Notebook

Balanced. The IdeaPad Z500-MBYG2GE is aimed at performance hungry multimedia users in particular. With an energy-saving Quad-Core and a GeForce GT 645M, the 15-...
Intel Core i7-3632QM | NVIDIA GeForce GT 645M | 15.60" | 2.4 kg
 

Review Clevo W251EG Barebones Notebook

A good deal. Shortly after the release of the GeForce GTX 670MX and GTX 675MX, Nvidia is unleashing another Kepler graphics card into the race. Contrary to its ...
Intel Core i7-3630QM | NVIDIA GeForce GT 645M | 15.60" | 2.5 kg

Asus UX42VS-W3007H: Intel Core i5-3317U, 14.00", 1.7 kg
  External Review » Asus UX42VS-W3007H

Lenovo IdeaPad Z500-59351745: Intel Core i3-3110M, 15.60", 2.3 kg
  External Review » Lenovo IdeaPad Z500-59351745

Lenovo IdeaPad Z500-59351733: Intel Core i5-3210M, 15.60", 2.4 kg
  External Review » Lenovo IdeaPad Z500-59351733

MSI CX61-0NF-227PL: Intel Core i5-3210M, 15.60", 2.6 kg
  External Review » MSI CX61-0NF-227PL

Lenovo IdeaPad Z500-20202: Intel Core i7-3632QM, 15.60", 2.4 kg
  External Review » Lenovo IdeaPad Z500-20202

Asus UX52VS: Intel Core i7-3517U, 15.60", 2.2 kg
  External Review » Asus UX52VS

Lenovo IdeaPad Z500: Intel Core i5-3210M, 15.60", 2.3 kg
  External Review » Lenovo IdeaPad Z500

MSI CX61-0NF-258US: Intel Core i7-3630QM, 15.60", 2.4 kg
  External Review » MSI CX61-0NF-258US

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» Comparison of GPUs
Detailed list of all laptop GPUs sorted by class and performance.

» Benchmark List
Sort and restrict laptop GPUs based on performance in synthetic benchmarks.

» Notebook Gaming List
Playable games for each graphics card and their average FPS results.

Class 0

Arc A380

Class 1

Class 2

Radeon PRO W6600M *

Class 3

UHD Graphics 32EUs
UHD Graphics 750

Class 4

Class 5

* Approximate position of the graphics adapter