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NVIDIA GeForce GT 745M

NVIDIA GeForce GT 745M

The NVIDIA GeForce GT 745M is a DirectX 11 graphics card of the middle class. It is based on the Kepler architecture and manufactured by TSMC in a 28-nanometer process. The GK107 chip (384 shaders) is clocked at up to 837 MHz plus boost and has a 128 bit memory interface (usually DDR3, but GDDR5 also possible).

Architecture

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 expected to be up to two times more 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, even though Fermi shaders are clocked at twice the speed.

PCIe 3.0 is now supported by the mobile Kepler series and GPU Boost 2.0 can automatically overclock the card if the laptop cooling system allows it. This feature is available on any notebook with a graphics card of the 700M series.

Performance

Depending on clock speed and memory configuration, the GT 745M performs just below the GT 650M or GTX 660M. Models with GDDR5 memory are usually slightly faster than models with DDR3. Current games (as of 2013) can be played fluently in medium to high settings. In older titles, there are also reserves for additional quality features like AA and AF.

Features

The feature set 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) (also integrated in the GK107 core) 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 feature is the inclusion of a dedicated video encoding engine similar to Intel QuickSync that can be accessed via the NVENCI API.

Power Consumption

The power consumption of the GeForce GT 745M should be similar to the GT 645M (about 25 - 30 watts). As a result, the Nvidia GPU is best suited for multimedia notebooks 14-inches in size or greater.

ManufacturerNVIDIA
GeForce GT 700M Series
GeForce GT 755M SLI compare 768 @ 0.98 GHz2x 128 Bit @ 5400 MHz
GeForce GT 750M SLI compare 768 @ 0.97 GHz2x 128 Bit @ 2000 - 5000 MHz
GeForce GT 755M compare 384 @ 0.98 GHz128 Bit @ 5400 MHz
GeForce GT 750M compare 384 @ 0.97 GHz128 Bit @ 2000 - 5000 MHz
GeForce GT 745M 384 @ 0.84 GHz128 Bit @ 1800 MHz
GeForce GT 740M compare 384 @ 0.81 - 0.98 GHz64/128 Bit @ 1600 - 1800 MHz
GeForce GT 735M compare 384 @ 0.58 - 0.89 GHz64 Bit @ 1800 - 2000 MHz
GeForce GT 730M compare 384 @ 0.73 GHz64/128 Bit @ 1800 - 2000 MHz
GeForce GT 720M compare 96 @ 0.63 - 0.94 GHz64 Bit @ 1800 - 2000 MHz
CodenameN14P-LP/GS
ArchitectureKepler
Pipelines384 - unified
Core Speed837 MHz
Memory Speed1800 MHz
Memory Bus Width128 Bit
Memory TypeDDR3, GDDR5
Max. Amount of Memory2048 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Transistor Count1300 Million
technology28 nm
FeaturesOptimus, GPU Boost 2.0, PhysX, Verde Drivers, CUDA, 3D Vision, 3DTV Play
Notebook Sizemedium sized
Date of Announcement01.04.2013

Benchmarks

Performance Rating - 3DMark 11 + Fire Strike + Time Spy
7.5 pt (8%)
3DMark - 3DMark Cloud Gate Score
min: 5169     avg: 7510     median: 8411 (11%)     max: 9094 Points
3DMark - 3DMark Cloud Gate Graphics
min: 7867     avg: 9862     median: 10147 (5%)     max: 11036 Points
3DMark - 3DMark Fire Strike Standard Score
min: 1219     avg: 1405     median: 1443 (4%)     max: 1537 Points
3DMark - 3DMark Fire Strike Standard Graphics
min: 1301     avg: 1480     median: 1531 (3%)     max: 1592 Points
3DMark - 3DMark Ice Storm Graphics
min: 38674     avg: 70075     median: 73947 (10%)     max: 85284 Points
3DMark 11 - 3DM11 Performance Score
min: 2016     avg: 2346     median: 2407 (6%)     max: 2542 Points
3DMark 11 - 3DM11 Performance GPU
min: 1936     avg: 2213     median: 2249 (4%)     max: 2390 Points
3DMark Vantage
3DM Vant. Perf. total +
3DM Vant. Perf. GPU no PhysX +
3DMark 06 3DMark 06 - Standard 1280x1024 +
SPECviewperf 11
specvp11 snx-01 +
specvp11 tcvis-02 +
specvp11 sw-02 +
specvp11 proe-05 +
specvp11 maya-03 +
specvp11 lightwave-01 +
specvp11 ensight-04 +
specvp11 catia-03 +
Cinebench R10 Cinebench R10 Shading (32bit) +
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit +
Cinebench R15
Cinebench R15 OpenGL 64 Bit +
Cinebench R15 OpenGL Ref. Match 64 Bit +
- 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.

Thief

Thief

2014
low 1024x768
27.9  fps    + Compare
med. 1366x768
19.9  fps    + Compare
high 1366x768
17.1  fps    + Compare
ultra 1920x1080
9.5  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
71.1  fps    + Compare
med. 1366x768
33.7  fps    + Compare
high 1366x768
16.7  fps    + Compare
» With all tested laptops playable in detail settings low.
low 1024x768
30  fps    + Compare
med. 1366x768
30  fps    + Compare
high 1366x768
27  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
med. 1366x768
45.8  fps    + Compare
high 1366x768
28.9  fps    + Compare
ultra 1920x1080
11.2  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1024x768
132  fps    + Compare
med. 1366x768
77  fps    + Compare
high 1366x768
36  fps    + Compare
ultra 1920x1080
17  fps    + Compare
» With all tested laptops playable in detail settings high.
F1 2013

F1 2013

2013
med. 1366x768
105  fps    + Compare
high 1366x768
94  fps    + Compare
ultra 1920x1080
38  fps    + Compare
» With all tested laptops playable in detail settings ultra.
Fifa 14

Fifa 14

2013
low 1024x768
279.4  fps    + Compare
med. 1366x768
222.4  fps    + Compare
high 1366x768
199.5  fps    + Compare
ultra 1920x1080
134.1  fps    + Compare
» With all tested laptops playable in detail settings ultra.
med. 1366x768
66.3  fps    + Compare
high 1366x768
53.4  fps    + Compare
ultra 1920x1080
7.9  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
59.6  fps    + Compare
med. 1366x768
49.1  fps    + Compare
high 1366x768
20.9  fps    + Compare
ultra 1920x1080
11.2  fps    + Compare
» With all tested laptops playable in detail settings med..
Dota 2

Dota 2

2013
low 1024x768
99.1 119.7 ~ 109 fps    + Compare
med. 1366x768
70.7 75 ~ 73 fps    + Compare
ultra 1920x1080
39  fps    + Compare
» With all tested laptops playable in detail settings ultra.
low 1024x768
28.3  fps    + Compare
med. 1366x768
22.8  fps    + Compare
high 1366x768
15.2  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
GRID 2

GRID 2

2013
low 1024x768
79.1  fps    + Compare
med. 1366x768
57  fps    + Compare
high 1366x768
46.9  fps    + Compare
ultra 1920x1080
13.5  fps    + Compare
» With all tested laptops playable in detail settings high.