Mobile PCI Express Module
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.


| Mobile PCI Express Module | |
![]() Reference design of a first generation MXM-II card for 35 mm GPU | |
| No. of devices | 1 |
|---|---|
| Style | Serial |
| External interface | no |
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.
Dell's 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.
| MXM Type | Width | Length | Pins | Module Compatibility | Thermal Compatibility | Max. Power | Max. GPU size [3] |
|---|---|---|---|---|---|---|---|
| MXM-I | 70 mm | 68 mm | 230 | I | I | 18 W | 35 × 35 mm |
| MXM-II | 73 mm | 78 mm | 230 | I, II | II | 35 W | 35 × 35 mm |
| MXM-III (HE) | 82 mm | 100 mm | 230 (232) | I, II, III | I, II, III | 75 W | 40 × 40 mm |
| MXM-IV (Deprecated) | 82 mm | 117 mm | 230 | I, II, III, IV | I, II, III, IV |
| MXM Type | Width | Length | Module Compatibility | Thermal Compatibility | Max. Power | GPU memory bus |
|---|---|---|---|---|---|---|
| MXM-A | 82 mm | 70 mm | A | A | 55 W | 64-bit or 128-bit |
| MXM-B | 82 mm | 105 mm | A, B | A, B | 200 W | 256-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 | 26 W | 80 × 70 mm |
| FirePro M5950 | 2011-01 | Whistler XT | 480:24:8 | 0.69 | 35 W | ||||
| FirePro M4000[4] | 2012-06 | Chelsea XT GL | GCN 1 | 512:32:16 | 0.69 | 33 W | |||
| FirePro M5100 | 2013-10 | Venus XT | 640:40:16 | ||||||
| FirePro M6100 | Type-B | Saturn XT GL | GCN 2 | 768:48:16 | 82 × 105 mm | ||||
| FirePro W5130M | 2014-08 | Type-A | Tropo LE | GCN 1 | 512:32:16 | 1.0 | 35 W | 80 × 70 mm | |
| FirePro W5170M | Tropo XT | 640:40:16 | 1.1 | 45 W | |||||
| FirePro W6150M | 2015-11 | Type-B | Saturn XT GL | GCN 2 | 768:48:16 | 2.0 | 100 W | 82 × 105 mm | |
| FirePro S4000X | 2014-08 | Type-A | Venus XT | GCN 1 | 640:40:16 | 1.0 | 45 W | 80 × 70 mm | |
| FirePro S7100X | 2016-05 | Type-B | Amethyst XT | GCN 3 | 2048:128:32 | 3.0 | 100 W | 82 × 105 mm | |
| Radeon Pro WX 4130 Mobile | 2017-03 | Type-A | Baffin LE | GCN 4 | 640:40:16 | 1.4 | 45 W | 82 × 70 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 | 60 W | 82 × 105 mm | |||
| Radeon Embedded E6465 | 2015-10 | Type-A | Caicos | TeraScale 2 | 60:8:4 | 0.2 | 28 W | 80 × 70 mm | |
| Radeon Embedded E8860 | Cape Verde XT | GCN 1 | 640:40:16 | 0.8 | 37 W | ||||
| Radeon Embedded E8870[6] | Type-B | Bonaire Pro | GCN 2 | 768:48:16 | 1.4 | 75 W | 82 × 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 | 35 W | 82 × 70 mm | |
| Radeon Embedded E9174 | 512:32:16 | 1.2 | 50 W | ||||||
| Radeon Embedded E9260[8] | 2016-09 | Baffin PRO | 896:56:16 | 2.2 | 50 W | ||||
| Radeon Embedded E9550[9] | Type-B | Ellesmere XT | 2304:144:32 | 5.8 | 95 W | 82 × 105 mm | |||
| Nvidia | Tesla M6 | 2015-11 | Type-B | GM204 | Maxwell | 1536:96:48 | 3.0 | 100 W | 82 × 105 mm |
| Quadro K610 Mobile | 2013-07 | Type-A | GK208 | Kepler | 192:16:8 | 0.4 | 30 W | 80 × 70 mm | |
| Quadro K1100 Mobile | GK107 | 384:32:16 | 0.5 | 45 W | |||||
| Quadro K2100 Mobile | GK106 | 576:48:16 | 0.7 | 55 W | |||||
| Quadro K3100 Mobile | Type-B | GK104 | 768:64:32 | 1.1 | 75 W | 82 × 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 | 25 W | 80 × 70 mm | |
| Quadro M620 Mobile[11] | GM107 | 512:32:16 | 1.0 | 30 W | |||||
| Quadro M1000M Mobile | 2015-08 | 512:32:16 | 1.0 | 40 W | |||||
| Quadro M1200M Mobile[12] | 2017-01 | 640:40:16 | 1.4 | 45 W | |||||
| Quadro M2000M Mobile | 2015-12 | 640:40:16 | 1.4 | 55 W | |||||
| Quadro M2200M Mobile[13] | 2017-01 | GM206 | 1024:64:32 | 2.1 | 55 W | ||||
| Quadro M3000M Mobile | 2015-08 | Type-B | GM204 | 1024:64:32 | 2.1 | 75 W | 82 × 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 | 40 W | 80 × 70 mm | |
| Quadro P2000 Mobile | 2019-02 | GP106 | 1152:72:32 | 3.0 | 75 W | ||||
| Quadro P3000 Mobile[14] | 2017-01 | Type-B | GP104 | 1280:80:32 | 3.1 | 75 W | 82 × 105 mm | ||
| Quadro P3200 Mobile | 2018-02 | 1792:112:64 | 5.5 | 75 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 | 50 W | 82 × 70 mm | |
| GeForce GTX 965M[17] | 2016-01 | Type-A | GM204 | Maxwell | 1024:64:32 | 2.4 | 75 W | 80 × 70 mm | |
| GeForce GTX 965M | 2014-10 | Type-B | 1024:64:32 | 2.4 | 75 W | 82 × 105 mm | |||
| GeForce GTX 970M | 2.7 | 75 W | |||||||
| GeForce GTX 980M | 3.2 | 100 W | |||||||
| GeForce GTX 980 | 2015-09 | 4.4 | 180 W | 83 × 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 | 82 × 70 mm | |
| GeForce GTX 1050 Ti Mobile | 768:48:2 | 2.4 | 75 W | 82 × 70 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 | 78 W | 82 × 105 mm | ||||||
| GeForce GTX 1070 Mobile (Clevo) | GP104 | 6.7 | 150 W | 100 × 124 mm | |||||
| GeForce GTX 1070 Mobile (MSI) | 115 W | 94 × 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 | 94 × 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 | 82 × 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


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
- Unified Shaders : Texture Mapping Units : Render Output Units
References
- "MXM Standard 3.1 is the new one (Up from 3.0)". NotebookReview. Retrieved 2017-03-15.
- "MXM Graphics Module". www.mxm-sig.org. Archived from the original on 2016-09-13. Retrieved 2017-03-15.
- Klaus Hinum (2012-05-26). "Notebook Video Card Upgrade / Replacement". Notebook Check. Archived from the original on 2017-12-10. Retrieved 2014-06-16.
- "AMD FirePro M4000". TechPowerUp. Retrieved 2018-07-22.
- Radeon™ PRO WX 4150 (Mobile)
- Processing Performance, Power Efficiency, and Cost Effectiveness AMD
- Optimal Balance of Performance and Power Efficiency AMD
- "AMD E9260" (PDF).
- "AMD E9950" (PDF).
- "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
- "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
- "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
- "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
- "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
- "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
- "TechPowerUp". TechPowerUp. Retrieved 2017-03-16.
- "NotebookCheck". NotebookCheck. Retrieved 2022-06-05.
