Mobility Radeon HD 4870 X2 vs Radeon R7 250

If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4870 X2 and Radeon R7 250, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Mobility Radeon HD 4870 X2 stacks up against Radeon R7 250, check out specs charts below.

Mobility Radeon HD 4870 X2 is a Laptop Graphics Card

Note: Mobility Radeon HD 4870 X2 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 Mobility Radeon HD 4870 X2 here:

Main Specs

  Mobility Radeon HD 4870 X2 Radeon R7 250
Power consumption (TDP) 75 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors N/A
Memory type GDDR3, GDDR5 DDR3, GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x VGA
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  • Mobility Radeon HD 4870 X2 is connected by PCIe 2.0 x16, and Radeon R7 250 uses PCIe 3.0 x8 interface.
  • Mobility Radeon HD 4870 X2 and Radeon R7 250 have maximum RAM of 2 GB.
  • Mobility Radeon HD 4870 X2 is used in Laptops, and Radeon R7 250 - in Desktops.
  • Mobility Radeon HD 4870 X2 is build with Terascale 1 architecture, and Radeon R7 250 - with GCN.
  • Mobility Radeon HD 4870 X2 is manufactured by 55 nm process technology, and Radeon R7 250 - by 28 nm process technology.
  • Memory clock speed of Radeon R7 250 is 262 MHz higher, than Mobility Radeon HD 4870 X2.

Game benchmarks

high / 1080p 9−10 3−4
ultra / 1080p 5−6 1−2
QHD / 1440p 0−1 0−1
low / 720p 21−24 14−16
medium / 1080p 12−14 5−6
The average gaming FPS of Mobility Radeon HD 4870 X2 in Assassin's Creed Odyssey is 100% more, than Radeon R7 250.

Full Specs

  Mobility Radeon HD 4870 X2 Radeon R7 250
Architecture Terascale 1 GCN
Code name M98-XT Oland XT
Type Laptop Desktop
Release date 9 January 2009 1 October 2013
Pipelines 1600 384
Core clock speed 550 MHz
Boost Clock 1050 MHz
Transistor count 956 million 950 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 22.00 25.20
Floating-point performance 2x 880.0 gflops 716.8 gflops
Length 168 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 888 MHz 1150 MHz
Memory bandwidth 89.6 GB/s 72 GB/s
Shared memory - -
DirectX 10.1 (10_1)
Shader Model 4.1 5.1
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 117 Mh/s
Laptop size large
Design reference
CrossFire +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 3 Mh/s
AppAcceleration +
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