NVIDIA GeForce 945M vs ATI Mobility Radeon HD 3870 X2
Comparison of GeForce 945M and Mobility Radeon HD 3870 X2 architecture, market type and release date.
GeForce 945M and Mobility Radeon HD 3870 X2's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of GeForce 945M and Mobility Radeon HD 3870 X2's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Core clock speed
Manufacturing process technology
Power consumption (TDP)
Texture fill rate
2x 422.4 gflops
Compatibility, dimensions and requirements
Information on GeForce 945M and Mobility Radeon HD 3870 X2 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
PCI Express 3.0
PCIe 2.0 x16
Supplementary power connectors
Parameters of memory installed on GeForce 945M and Mobility Radeon HD 3870 X2: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Maximum RAM amount
Memory bus width
Memory clock speed
Video outputs and ports
Types and number of video connectors present on GeForce 945M and Mobility Radeon HD 3870 X2.
Technological solutions and APIs supported by GeForce 945M and Mobility Radeon HD 3870 X2. You'll probably need this information if you need some particular technology for your purposes.
APIs supported by GeForce 945M and Mobility Radeon HD 3870 X2, sometimes including their particular versions.
Non-gaming benchmarks performance of GeForce 945M and Mobility Radeon HD 3870 X2. Note that overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance
GeForce 945M 4.76 +125.6%
ATI Mobility HD 3870 X2 2.11
3DMark Vantage Performance
GeForce 945M 13507 +95.9%
ATI Mobility HD 3870 X2 6895
Cryptocurrency mining performance of GeForce 945M and Mobility Radeon HD 3870 X2. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
Let's see how good GeForce 945M and Mobility Radeon HD 3870 X2 are for gaming. Particular gaming benchmark results are measured in FPS.
Advantages of NVIDIA GeForce 945M
125.6% faster (about 2.5 times) in synthetic tests
Much newer (27 October 2015 vs 1 September 2008)
More pipelines (640 vs 320)
Finer manufacturing process technology (28 vs 55 nm)
Less power hungry (75 vs 110 watts)
GPU Boost 2.0 (increases NVIDIA GPU voltage and frequency when there's a temperature headroom. Similar to AMD PowerTune)
Optimus (lowers energy usage by automatically switching between integrated and discrete NVIDIA GPU. Similar to AMD Enduro)
PhysX (hardware acceleration of physical simulation engine named PhysX)
CUDA (Compute Unified Device Architecture - an API for video card computing power usage in tasks different from 3D graphics processing. Can be used for physics simulation for instance)
GeForce Experience (software suite built to manage NVIDIA GPU parameters, and to record and stream game video)
Advantages of ATI Mobility Radeon HD 3870 X2
Wider memory bus (256 vs 128 bit)
Higher memory bandwidth (54.4 vs 28.8 GB/s)
So, 945M or Mobility HD 3870 X2?
Judging by the results of synthetic and gaming tests, Technical City recommends NVIDIA GeForce 945M.
Should you still have questions on choice between GeForce 945M and Mobility Radeon HD 3870 X2, ask them in Comments section, and we shall answer.