Radeon HD 6850 X2 vs Radeon R9 290X

In this comparison between Radeon HD 6850 X2 and Radeon R9 290X 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 Radeon HD 6850 X2 will be the best choice, for others Radeon R9 290X will be their preference. Study the comparison tables below and make your choice.

Main Specs

  Radeon HD 6850 X2 Radeon R9 290X
Power consumption (TDP) 254 Watt 250 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin 1 x 6-pin + 1 x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6850 X2 has 1% more power consumption, than Radeon R9 290X.
  • Radeon HD 6850 X2 is connected by PCIe 2.0 x16, and Radeon R9 290X uses PCIe 3.0 x16 interface.
  • Radeon R9 290X has 2 GB more memory, than Radeon HD 6850 X2.
  • Both cards are used in Desktops.
  • Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon R9 290X - with GCN.
  • Radeon HD 6850 X2 is manufactured by 40 nm process technology, and Radeon R9 290X - by 28 nm process technology.
  • Memory clock speed of Radeon HD 6850 X2 is 2950 MHz higher, than Radeon R9 290X.

Game benchmarks

high / 1080p 12−14 35−40
ultra / 1080p 7−8 24−27
QHD / 1440p 2−3 18−20
4K / 2160p 10−11
low / 720p 27−30 60−65
medium / 1080p 16−18 45−50
The average gaming FPS of Radeon R9 290X in Assassin's Creed Odyssey is 192% more, than Radeon HD 6850 X2.

Full Specs

  Radeon HD 6850 X2 Radeon R9 290X
Architecture TeraScale 2 GCN
Code name Barts Hawaii XT
Type Desktop Desktop
Release date 19 September 2011 24 October 2013
Pipelines 960 2816
Core clock speed 800 MHz
Boost Clock 947 MHz
Transistor count 1,700 million 6,200 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 38.40 176.0
Floating-point performance 2x 1,536.0 gflops 5,632 gflops
Length 275 mm
Memory bus width 256 Bit 512 Bit
Memory clock speed 4200 MHz 1250 MHz
Memory bandwidth 134.4 GB/s 320 GB/s
Shared memory -
DirectX 11.2 (11_0)
Shader Model 5.0 6.3
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan N/A +
Monero / XMR (CryptoNight) 0.76 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 623 Mh/s
Eyefinity +
HD3D +
TrueAudio +
Design reference
DisplayPort support +
CrossFire +
DDMA audio +
Decred / DCR (Decred) 1.07 Gh/s
Ethereum / ETH (DaggerHashimoto) 25.75 Mh/s
Zcash / ZEC (Equihash) 350 Sol/s
AppAcceleration +
LiquidVR +
TressFX +
UVD +
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