GeForce GTX 675MX vs Radeon HD 4870 X2

In this comparison between GeForce GTX 675MX and Radeon HD 4870 X2 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 GeForce GTX 675MX will be the best choice, for others Radeon HD 4870 X2 will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 675MX is a Laptop Graphics Card

Note: GeForce GTX 675MX 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 GeForce GTX 675MX here:

Main Specs

  GeForce GTX 675MX Radeon HD 4870 X2
Power consumption (TDP) 100 Watt 286 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None 1x 6-pin + 1x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 2x DVI, 1x S-Video
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  • Radeon HD 4870 X2 has 186% more power consumption, than GeForce GTX 675MX.
  • GeForce GTX 675MX is connected by MXM-B (3.0), and Radeon HD 4870 X2 uses PCIe 2.0 x16 interface.
  • GeForce GTX 675MX has 1 GB more memory, than Radeon HD 4870 X2.
  • GeForce GTX 675MX is used in Laptops, and Radeon HD 4870 X2 - in Desktops.
  • GeForce GTX 675MX is build with Kepler architecture, and Radeon HD 4870 X2 - with TeraScale.
  • Core clock speed of Radeon HD 4870 X2 is 100 MHz higher, than GeForce GTX 675MX.
  • GeForce GTX 675MX is manufactured by 28 nm process technology, and Radeon HD 4870 X2 - by 55 nm process technology.
  • Memory clock speed of Radeon HD 4870 X2 is 1800 MHz higher, than GeForce GTX 675MX.

Game benchmarks

high / 1080p 9−10 3−4
ultra / 1080p 5−6 1−2
QHD / 1440p 0−1 0−1
low / 720p 21−24 14−16
medium / 1080p 12−14 6−7
The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 100% more, than Radeon HD 4870 X2.

Full Specs

  GeForce GTX 675MX Radeon HD 4870 X2
Architecture Kepler TeraScale
Code name N13E-GSR R700
Type Laptop Desktop
Release date 1 October 2012 12 August 2008
Pipelines 960 800
Core clock speed 600 MHz 700 MHz
Transistor count 3,540 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 48.0 billion/sec 28.00
Floating-point performance 1,256 gflops 2x 1,120.0 gflops
Length 267 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 1800 MHz 3600 MHz
Memory bandwidth 115.2 GB/s 115.2 GB/s
Shared memory -
DirectX 12 API 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.5 3.3
OpenCL 1.1 1.1
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 960
Bus support PCI Express 2.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 63 Mh/s
Laptop size large
Optimus +
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