Quadro P400 vs Radeon HD 6850 X2

Find out if it is worth upgrading your current GPU setup by comparing Quadro P400 and Radeon HD 6850 X2. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Quadro P400 and Radeon HD 6850 X2. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
Radeon HD 6850 X2

Main Specs

  Quadro P400 Radeon HD 6850 X2
Power consumption (TDP) 30 Watt 254 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors None 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 3x mini-DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6850 X2 has 746% more power consumption, than Quadro P400.
  • Quadro P400 is connected by PCIe 3.0 x16, and Radeon HD 6850 X2 uses PCIe 2.0 x16 interface.
  • Quadro P400 and Radeon HD 6850 X2 have maximum RAM of 2 GB.
  • Both cards are used in Desktops.
  • Quadro P400 is build with Pascal architecture, and Radeon HD 6850 X2 - with TeraScale 2.
  • Core clock speed of Quadro P400 is 428 MHz higher, than Radeon HD 6850 X2.
  • Quadro P400 is manufactured by 14 nm process technology, and Radeon HD 6850 X2 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 6850 X2 is 192 MHz higher, than Quadro P400.

Game benchmarks

high / 1080p 7−8 12−14
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 2−3
low / 720p 18−20 27−30
medium / 1080p 9−10 16−18
The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 60% more, than Quadro P400.

Full Specs

  Quadro P400 Radeon HD 6850 X2
Architecture Pascal TeraScale 2
Code name GP107 Barts
Type Workstation Desktop
Release date 7 February 2017 19 September 2011
Pipelines 256 960
Core clock speed 1228 MHz 800 MHz
Boost Clock 1252 MHz
Transistor count 3,300 million 1,700 million
Manufacturing process technology 14 nm 40 nm
Texture fill rate 20.03 38.40
Floating-point performance 679.9 gflops 2x 1,536.0 gflops
Length 145 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 4008 MHz 4200 MHz
Memory bandwidth 32.06 GB/s 134.4 GB/s
DirectX 12 (12_1) 11.2 (11_0)
Shader Model 6.4 5.0
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.2.131 N/A
CUDA 6.1
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