Radeon HD 6850 X2 vs Radeon RX 540

If you are going to buy a new graphics card and are choosing between Radeon HD 6850 X2 and Radeon RX 540, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 6850 X2 stacks up against Radeon RX 540, check out specs charts below.
Radeon HD 6850 X2

Radeon RX 540 is a Laptop Graphics Card

Note: Radeon RX 540 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 Radeon RX 540 here:

Main Specs

  Radeon HD 6850 X2 Radeon RX 540
Power consumption (TDP) 254 Watt 65 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6850 X2 has 290% more power consumption, than Radeon RX 540.
  • Radeon HD 6850 X2 is connected by PCIe 2.0 x16, and Radeon RX 540 uses PCIe 3.0 x16 interface.
  • Radeon RX 540 has 2 GB more memory, than Radeon HD 6850 X2.
  • Radeon HD 6850 X2 is used in Desktops, and Radeon RX 540 - in Laptops.
  • Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon RX 540 - with Polaris.
  • Radeon HD 6850 X2 is manufactured by 40 nm process technology, and Radeon RX 540 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 540 is 1800 MHz higher, than Radeon HD 6850 X2.

Game benchmarks

high / 1080p 12−14 14−16
ultra / 1080p 7−8 8−9
QHD / 1440p 2−3 3−4
low / 720p 27−30 30−33
medium / 1080p 16−18 18−20
The average gaming FPS of Radeon RX 540 in Assassin's Creed Odyssey is 15% more, than Radeon HD 6850 X2.

Full Specs

  Radeon HD 6850 X2 Radeon RX 540
Architecture TeraScale 2 Polaris
Code name Barts Polaris 12
Type Desktop Laptop
Release date 19 September 2011 21 March 2017
Pipelines 960 512
Core clock speed 800 MHz
Boost Clock 1219 MHz
Transistor count 1,700 million 1,500 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 38.40 39.01
Floating-point performance 2x 1,536.0 gflops 1,248 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 4200 MHz 6000 MHz
Memory bandwidth 134.4 GB/s 96 GB/s
Shared memory -
DirectX 11.2 (11_0) 12.0
Shader Model 5.0 5.0
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan N/A
FreeSync +
Laptop size large
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