Mobile PCI Express Module

A Mobile PCI Express Module (MXM) is an interconnect standard for GPUs (MXM Graphics Modules) in laptops using PCI Express created by MXM-SIG. The goal was to create a non-proprietary, industry standard socket, so one could easily upgrade the graphics processor in a laptop, without having to buy a whole new system or relying on proprietary vendor upgrades.

A GTX 780M GPU with MXM3 socket
Nvidia Quadro 3000M
MXM slot
Mobile PCI Express Module
Reference scheme of placing a basic elements (GPU and video RAM) on a first generation MXM-II cards for 35 mm GPU
Reference design of a first generation MXM-II card for 35 mm GPU
No. of devices1
StyleSerial
External interfaceno

Generations

Smaller graphics modules can be inserted into larger slots, but type I and II heatsinks will not fit type III and above or vice versa.

The Alienware m5700 platform uses a heatsink that will fit Type I, II, & III cards without modification.

MXM 3.1 was released in March 2012 and added PCIe 3.0 support.[1][2]

First generation modules are not compatible with second generation (MXM 3) modules and vice versa. First generation modules I to IV are fully backwards compatible.

1st generation
MXM
Type		WidthLengthPinsModule
Compatibility		Thermal
Compatibility		Max.
Power		Max.
GPU size [3]
MXM-I70 mm68 mm230II18 W35 × 35 mm
MXM-II73 mm78 mm230I, IIII35 W35 × 35 mm
MXM-III (HE)82 mm100 mm230 (232)I, II, IIII, II, III75 W40 × 40 mm
MXM-IV (Deprecated)82 mm117 mm230I, II, III, IVI, II, III, IV
2nd generation (MXM 3)
MXM
Type		WidthLengthModule
Compatibility		Thermal
Compatibility		Max.
Power		GPU
memory bus
MXM-A82 mm70 mmAA55 W64-bit or 128-bit
MXM-B82 mm105 mmA, BA, B200 W256-bit

Specification

MXM is no longer freely supplied by Nvidia but it is controlled by the MXM-SIG controlled by Nvidia. Only corporate clients are granted access to the standard. The MXM 2.1 specification is widely available.

List of MXM cards

MXM 3.x cards
Vendor Name Released MXM
Type		 GPU Architecture Core config[lower-alpha 1] TFLOPS
(FP32)		 TDP Dimensions
AMD FirePro M5800 2010-03 Type-A Madison XT Terascale 2 400:20:8 0.52 026 W 080 × 070 mm
FirePro M5950 2011-01 Whistler XT 480:24:8 0.69 035 W
FirePro M4000[4] 2012-06 Chelsea XT GL GCN 1 512:32:16 0.69 033 W
FirePro M5100 2013-10 Venus XT 640:40:16
FirePro M6100 Type-B Saturn XT GL GCN 2 768:48:16 082 × 105 mm
FirePro W5130M 2014-08 Type-A Tropo LE GCN 1 512:32:16 1.0 035 W 080 × 070 mm
FirePro W5170M Tropo XT 640:40:16 1.1 045 W
FirePro W6150M 2015-11 Type-B Saturn XT GL GCN 2 768:48:16 2.0 100 W 082 × 105 mm
FirePro S4000X 2014-08 Type-A Venus XT GCN 1 640:40:16 1.0 045 W 080 × 070 mm
FirePro S7100X 2016-05 Type-B Amethyst XT GCN 3 2048:128:32 3.0 100 W 082 × 105 mm
Radeon Pro WX 4130 Mobile 2017-03 Type-A Baffin LE GCN 4 640:40:16 1.4 045 W 082 × 070 mm
Radeon Pro WX 4150 Mobile[5] Baffin PRO 896:56:16 1.9
Radeon Pro WX 4170 Mobile Type-B Baffin XT 1024:64:16 2.5 060 W 082 × 105 mm
Radeon Embedded E6465 2015-10 Type-A Caicos Terascale 2 60:8:4 0.2 028 W 080 × 070 mm
Radeon Embedded E8860 Cape Verde XT GCN 1 640:40:16 0.8 037 W
Radeon Embedded E8870[6] Type-B Bonaire Pro GCN 2 768:48:16 1.4 075 W 082 × 105 mm
Radeon Embedded E8950 Tonga XT GCN 3 2048:128:32 3.0 95 W
Radeon Embedded E9172[7] 2017-10 Type-A Polaris 12 (Lexa) GCN 4 512:32:16 1.2 035 W 082 × 070 mm
Radeon Embedded E9174 512:32:16 1.2 50 W
Radeon Embedded E9260[8] 2016-09 Baffin PRO 896:56:16 2.2 050 W
Radeon Embedded E9550[9] Type-B Ellesmere XT 2304:144:32 5.8 095 W 082 × 105 mm
Nvidia Tesla M6 2015-11 Type-B GM204 Maxwell 1536:96:48 3.0 100 W 082 × 105 mm
Quadro K610 Mobile 2013-07 Type-A GK208 Kepler 192:16:8 0.4 030 W 080 × 070 mm
Quadro K1100 Mobile GK107 384:32:16 0.5 045 W
Quadro K2100 Mobile GK106 576:48:16 0.7 055 W
Quadro K3100 Mobile Type-B GK104 768:64:32 1.1 075 W 082 × 105 mm
Quadro K5100 Mobile 1536:128:32 2.4 100 W
Quadro M520 Mobile[10] 2017-01 Type-A GM108 Maxwell 384:16:8 0.8 025 W 080 × 070 mm
Quadro M620 Mobile[11] GM107 512:32:16 1.0 030 W
Quadro M1000M Mobile 2015-08 512:32:16 1.0 040 W
Quadro M1200M Mobile[12] 2017-01 640:40:16 1.4 045 W
Quadro M2000M Mobile 2015-12 640:40:16 1.4 055 W
Quadro M2200M Mobile[13] 2017-01 GM206 1024:64:32 2.1 055 W
Quadro M3000M Mobile 2015-08 Type-B GM204 1024:64:32 2.1 075 W 082 × 105 mm
Quadro M4000M Mobile 1280:80:64 2.5 100 W
Quadro M5000M Mobile 1536:96:64 3.0 100 W
Quadro P1000 Mobile 2017-02 Type-A GP107 Pascal 512:32:16 1.6 040 W 080 × 070 mm
Quadro P2000 Mobile 2019-02 GP106 1152:72:32 3.0 075 W
Quadro P3000 Mobile[14] 2017-01 Type-B GP104 1280:80:32 3.1 075 W 082 × 105 mm
Quadro P3200 Mobile 2018-02 1792:112:64 5.5 075 W
Quadro P4000 Mobile[15] 2017-01 1792:112:64 4.4 100 W
Quadro P4200 Mobile 2018-02 2304:144:64 7.6 100 W
Quadro P5000 Mobile[16] 2017-01 2048:128:64 6.2 100 W
Quadro P5200 Mobile 2018-02 2560:160:64 8.9 100 W
Quadro T1000 Mobile 2019-05 Type-A TU117 Turing 896:56:32 2.6 050 W 082 × 070 mm
GeForce GTX 965M[17] 2016-01 Type-A GM204 Maxwell 1024:64:32 2.4 075 W 080 × 070 mm
GeForce GTX 965M 2014-10 Type-B 1024:64:32 2.4 075 W 082 × 105 mm
GeForce GTX 970M 2.7 075 W
GeForce GTX 980M 3.2 100 W
GeForce GTX 980 2015-09 4.4 180 W 083 × 115 mm
GeForce GTX 980 200 W 102.6 × 115 mm
GeForce GTX 1050 Mobile 2017-01 Type-A GP107 Pascal 640:60:16 1.9 75 W 082 × 070 mm
GeForce GTX 1050 Ti Mobile 768:48:2 2.4 75 W 082 × 070 mm
GeForce GTX 1060 Mobile (Clevo) 2017-05 Type-B GP106 4.4 100 W 100 × 124 mm
GeForce GTX 1060 Mobile (MSI) 4.3 078 W 082 × 105 mm
GeForce GTX 1070 Mobile (Clevo) GP104 6.7 150 W 100 × 124 mm
GeForce GTX 1070 Mobile (MSI) 115 W 094 × 105 mm
GeForce GTX 1080 Mobile (Clevo) 9.1 190 W 100 × 124 mm
GeForce GTX 1080 Mobile "Type 1" (MSI GT73VR) 200 W Unknown
GeForce GTX 1080 Mobile "Type 2" (MSI GT83) 150 W 094 × 105 mm
GeForce RTX 2060 Mobile (Clevo) 2019-01 Type-B TU106 Turing 4.6 80 W 100 × 124 mm
GeForce RTX 2070 Mobile (Clevo) 6.6 115 W
GeForce RTX 2080 Mobile (Clevo) TU104 9.4 150 W
GeForce RTX 3000 Mobile 2019-05 TU106 1920:120:64 5.3 80 W 082 × 105 mm
GeForce RTX 4000 Mobile TU104 2560:160:64 8.0 110 W
Quadro RTX 5000 Mobile 3072:192:64 10.9 110 W

Other uses
VIA QSM-8Q90 Qseven computer-on-module using a MXM-2 connector
Congatec SMARC computer-on-module using MXM-3 connector

The Qseven computer-on-module form factor uses a MXM-II connector, while the SMARC computer-on-module form factor uses a MXM 3 connector. Both implementations are not in any way compatible with the MXM standard.

Notes
  1. Unified Shaders : Texture Mapping Units : Render Output Units

References
  1. "MXM Standard 3.1 is the new one (Up from 3.0)". NotebookReview. Retrieved 2017-03-15.
  2. "MXM Graphics Module". www.mxm-sig.org. Archived from the original on 2016-09-13. Retrieved 2017-03-15.
  3. Klaus Hinum (2012-05-26). "Notebook Video Card Upgrade / Replacement". Notebook Check. Archived from the original on 2017-12-10. Retrieved 2014-06-16.
  4. "AMD FirePro M4000". TechPowerUp. Retrieved 2018-07-22.
  5. Radeon™ PRO WX 4150 (Mobile)
  6. Processing Performance, Power Efficiency, and Cost Effectiveness AMD
  7. Optimal Balance of Performance and Power Efficiency AMD
  8. "AMD E9260" (PDF).
  9. "AMD E9950" (PDF).
  10. "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
  11. "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
  12. "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
  13. "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
  14. "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
  15. "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
  16. "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
  17. "NotebookCheck". NotebookCheck. Retrieved 2022-06-05.
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