GeForce GTX 675M SLI vs Radeon HD 7870 XT

When choosing between GeForce GTX 675M SLI and Radeon HD 7870 XT, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 675M SLI and Radeon HD 7870 XT.

GeForce GTX 675M SLI is a Laptop Graphics Card

Note: GeForce GTX 675M SLI 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 675M SLI here:

Main Specs

  GeForce GTX 675M SLI Radeon HD 7870 XT
Power consumption (TDP) 2x 100 Watt 185 Watt
Interface PCIe 3.0 x16
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB
Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 7870 XT has 9150% more power consumption, than GeForce GTX 675M SLI.
  • GeForce GTX 675M SLI is used in Laptops, and Radeon HD 7870 XT - in Desktops.
  • GeForce GTX 675M SLI is build with Fermi architecture, and Radeon HD 7870 XT - with GCN 1.0.
  • Core clock speed of Radeon HD 7870 XT is 305 MHz higher, than GeForce GTX 675M SLI.
  • GeForce GTX 675M SLI is manufactured by 40 nm process technology, and Radeon HD 7870 XT - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7870 XT is 3000 MHz higher, than GeForce GTX 675M SLI.

Game benchmarks

high / 1080p 18−20 35−40
ultra / 1080p 10−12 21−24
QHD / 1440p 5−6 16−18
4K / 2160p 4−5 10−11
low / 720p 35−40 60−65
medium / 1080p 24−27 40−45
The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 88% more, than GeForce GTX 675M SLI.

Full Specs

  GeForce GTX 675M SLI Radeon HD 7870 XT
Architecture Fermi GCN 1.0
Code name N12E-GTX2 Tahiti
Type Laptop Desktop
Release date 6 January 2011 19 November 2012
Pipelines 768 1536
Core clock speed 620 MHz 925 MHz
Boost Clock 975 MHz
Transistor count 4,313 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 93.60
Floating-point performance 2,995 gflops
Length 267 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 3000 MHz 6000 MHz
Memory bandwidth 192.0 GB/s
Shared memory -
DirectX DirectX 11, Shader 5.0 12 (11_1)
Shader Model 5.1
OpenGL 4.6
OpenCL 1.2
Vulkan 1.2.131
CUDA +
SLI options +
Bitcoin / BTC (SHA256) 346 Mh/s
Laptop size large
Optimus +
Ethereum / ETH (DaggerHashimoto) 14.5 Mh/s
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