Radeon HD 7850M vs Radeon R9 290X

When comparing Radeon HD 7850M and Radeon R9 290X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 7850M and Radeon R9 290X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon HD 7850M is a Laptop Graphics Card

Note: Radeon HD 7850M 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 HD 7850M here:

Main Specs

  Radeon HD 7850M Radeon R9 290X
Power consumption (TDP) 40 Watt 250 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 1 x 6-pin + 1 x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 290X has 525% more power consumption, than Radeon HD 7850M.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon R9 290X has 2 GB more memory, than Radeon HD 7850M.
  • Radeon HD 7850M is used in Laptops, and Radeon R9 290X - in Desktops.
  • Radeon HD 7850M and Radeon R9 290X are build with GCN architecture.
  • Radeon HD 7850M and Radeon R9 290X are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7850M is 2750 MHz higher, than Radeon R9 290X.

Game benchmarks

high / 1080p 6−7 35−40
ultra / 1080p 3−4 24−27
QHD / 1440p 0−1 18−20
4K / 2160p 10−11
low / 720p 14−16 60−65
medium / 1080p 7−8 45−50
The average gaming FPS of Radeon R9 290X in Assassin's Creed Odyssey is 437% more, than Radeon HD 7850M.

Full Specs

  Radeon HD 7850M Radeon R9 290X
Architecture GCN GCN
Code name Heathrow Pro Hawaii XT
Type Laptop Desktop
Release date 24 April 2012 24 October 2013
Pipelines 640 2816
Core clock speed 675 MHz
Boost Clock 947 MHz
Transistor count 1,500 million 6,200 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 27.00 176.0
Floating-point performance 864.0 gflops 5,632 gflops
Length 275 mm
Memory bus width 128 Bit 512 Bit
Memory clock speed 4000 MHz 1250 MHz
Memory bandwidth 64 GB/s 320 GB/s
Shared memory - -
DirectX 12 (11_1)
Shader Model 5.1 6.3
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131 +
Monero / XMR (CryptoNight) 0.76 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 623 Mh/s
Laptop size large
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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