Radeon HD 8770M vs Radeon R9 290X

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 8770M and Radeon R9 290X. 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 Radeon HD 8770M and Radeon R9 290X. 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 8770M is a Laptop Graphics Card

Note: Radeon HD 8770M 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 8770M here:

Main Specs

  Radeon HD 8770M Radeon R9 290X
Power consumption (TDP) 250 Watt
Interface PCIe 3.0 x8 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 HD 8770M is connected by PCIe 3.0 x8, and Radeon R9 290X uses PCIe 3.0 x16 interface.
  • Radeon R9 290X has 2 GB more memory, than Radeon HD 8770M.
  • Radeon HD 8770M is used in Laptops, and Radeon R9 290X - in Desktops.
  • Radeon HD 8770M and Radeon R9 290X are build with GCN architecture.
  • Radeon HD 8770M and Radeon R9 290X are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 8770M is 3250 MHz higher, than Radeon R9 290X.

Game benchmarks

high / 1080p 7−8 35−40
ultra / 1080p 4−5 24−27
QHD / 1440p 0−1 18−20
4K / 2160p 10−11
low / 720p 16−18 60−65
medium / 1080p 8−9 45−50
The average gaming FPS of Radeon R9 290X in Assassin's Creed Odyssey is 377% more, than Radeon HD 8770M.

Full Specs

  Radeon HD 8770M Radeon R9 290X
Architecture GCN GCN
Code name Mars Hawaii XT
Type Laptop Desktop
Release date 16 November 2012 24 October 2013
Pipelines 384 2816
Core clock speed 775 MHz
Boost Clock 825 MHz 947 MHz
Transistor count 950 million 6,200 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 19.80 176.0
Floating-point performance 633.6 gflops 5,632 gflops
Length 275 mm
Memory bus width 128 Bit 512 Bit
Memory clock speed 4500 MHz 1250 MHz
Memory bandwidth 72 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 medium sized
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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