Radeon HD 4890 vs Radeon R9 M385X

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 4890 and Radeon R9 M385X. 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 4890 and Radeon R9 M385X. 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 R9 M385X is a Laptop Graphics Card

Note: Radeon R9 M385X 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 R9 M385X here:

Main Specs

  Radeon HD 4890 Radeon R9 M385X
Power consumption (TDP) 190 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors 2x DVI, 1x S-Video No outputs
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  • Radeon HD 4890 is connected by PCIe 2.0 x16, and Radeon R9 M385X uses PCIe 3.0 x16 interface.
  • Radeon R9 M385X has 3 GB more memory, than Radeon HD 4890.
  • Radeon HD 4890 is used in Desktops, and Radeon R9 M385X - in Laptops.
  • Radeon HD 4890 is build with TeraScale architecture, and Radeon R9 M385X - with GCN.
  • Core clock speed of Radeon R9 M385X is 250 MHz higher, than Radeon HD 4890.
  • Radeon HD 4890 is manufactured by 55 nm process technology, and Radeon R9 M385X - by 28 nm process technology.
  • Memory clock speed of Radeon HD 4890 is 2400 MHz higher, than Radeon R9 M385X.

Game benchmarks

high / 1080p 7−8 8−9
ultra / 1080p 4−5 5−6
QHD / 1440p 0−1 0−1
low / 720p 16−18 18−20
medium / 1080p 8−9 10−11
The average gaming FPS of Radeon R9 M385X in Assassin's Creed Odyssey is 11% more, than Radeon HD 4890.

Full Specs

  Radeon HD 4890 Radeon R9 M385X
Architecture TeraScale GCN
Code name RV790 Strato-XT-M3
Type Desktop Laptop
Release date 2 April 2009 16 June 2015
Pipelines 800 896
Core clock speed 850 MHz 1100 MHz
Boost Clock 1100 MHz
Transistor count 959 million 2,080 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 34.00 61.60
Floating-point performance 1,360.0 gflops 1,971 gflops
Length 241 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 3900 MHz 1500 MHz
Memory bandwidth 124.8 GB/s 76.8 GB/s
Shared memory -
DirectX 10.1 (10_1)
Shader Model 4.1 6.3
OpenGL 3.3 4.4
OpenCL 1.1 Not Listed
Vulkan N/A
FreeSync +
Bus support PCIe 3.0
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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