Mobility Radeon HD 4870 X2 vs Radeon R9 M375X

In this comparison between Mobility Radeon HD 4870 X2 and Radeon R9 M375X you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Mobility Radeon HD 4870 X2 will be the best choice, for others Radeon R9 M375X will be their preference. Study the comparison tables below and make your choice.

Mobility Radeon HD 4870 X2 is a Laptop Graphics Card

Note: Mobility Radeon HD 4870 X2 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Mobility Radeon HD 4870 X2 here:

Main Specs

  Mobility Radeon HD 4870 X2 Radeon R9 M375X
Interface PCIe 2.0 x16 PCIe 3.0 x16
Memory type GDDR3, GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 4870 X2 is connected by PCIe 2.0 x16, and Radeon R9 M375X uses PCIe 3.0 x16 interface.
  • Radeon R9 M375X has 2 GB more memory, than Mobility Radeon HD 4870 X2.
  • Mobility Radeon HD 4870 X2 is used in Laptops, and Radeon R9 M375X - in Desktops.
  • Mobility Radeon HD 4870 X2 is build with Terascale 1 architecture, and Radeon R9 M375X - with GCN 1.0.
  • Core clock speed of Radeon R9 M375X is 375 MHz higher, than Mobility Radeon HD 4870 X2.
  • Mobility Radeon HD 4870 X2 is manufactured by 55 nm process technology, and Radeon R9 M375X - by 28 nm process technology.
  • Memory clock speed of Radeon R9 M375X is 237 MHz higher, than Mobility Radeon HD 4870 X2.

Game benchmarks

high / 1080p 9−10 9−10
ultra / 1080p 5−6 5−6
QHD / 1440p 0−1 0−1
low / 720p 21−24 21−24
medium / 1080p 12−14 12−14
Mobility Radeon HD 4870 X2 and Radeon R9 M375X have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Mobility Radeon HD 4870 X2 Radeon R9 M375X
Architecture Terascale 1 GCN 1.0
Code name M98-XT Tropo
Type Laptop Desktop
Release date 9 January 2009 5 May 2015
Pipelines 1600 640
Core clock speed 550 MHz 925 MHz
Boost Clock 1015 MHz
Transistor count 956 million 1,500 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 22.00 40.60
Floating-point performance 2x 880.0 gflops 1,299 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 888 MHz 1125 MHz
Memory bandwidth 89.6 GB/s 72 GB/s
Shared memory -
DirectX 10.1 (10_1)
Shader Model 4.1 5.1
OpenGL 3.3 4.4
OpenCL 1.1 Not Listed
Vulkan N/A
FreeSync +
Bus support PCIe 3.0
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Compute units 10
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