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ATI Mobility Radeon HD 4860

The Mobility HD 4860 is based off of the 40nm RV740 core with less shader cores than the Mobility HD 4850 and only a 128 bit memory bus. Because of the high core clock and GDDR5 memory, the card should still be able to perform comparatively fast.

An initial review of the desktop HD 4750 with similar specifications than the Mobility HD 4860 (but at higher clock rates) shows a score of 6000 points in the GPU test of 3DMark Vantage. According to our benchmarks, this score puts the AMD card above the GeForce 280M.

AMD has also published a benchmark comparison between the HD 4850 and HD 4860 mobile graphics cards and showed that the 4860 was able to perform a few percentage points better in 3DMark06 under 1920x1200 pixel resolution.


At Cebit 2009, Asus showed us a 15" laptop with a Mobility Radeon HD 4860 for a hopeful launch in Q2 2009. Our press contact stated that the mobile HD 4860 may perform a bit worse than the mobile HD 4850. In the presented pre-production sample, there was an unspecified "Mobility Radeon 4500 Series" graphics card installed that scored only a bit above 2000 points in 3DMark06.

The features of the HD 4860 should be comparable to the HD 4850 with regards to Avivo HD video functionality, Powerplay and the integrated sound controller for HDMI output.

Mobility Radeon HD 4800 Series

Mobility Radeon HD 4860 640 @ 0.65 GHz128 Bit @ 1000 MHz
Mobility Radeon HD 4850 compare 800 @ 0.5 GHz256 Bit @ 850 MHz
Mobility Radeon HD 4830 compare 640 @ 0.55 GHz128 Bit @ 700 MHz
ArchitectureTerascale 1
Pipelines640 - unified
Core Speed650 MHz
Memory Speed1000 MHz
Memory Bus Width128 Bit
Memory TypeGDDR5
Shared Memoryno
APIDirectX 10.1, Shader 4.1
Transistor Count826 Million
technology40 nm
FeaturesPowerplay, CrossFireX support, 
Notebook Sizelarge
Date of Announcement03.03.2009
Information832 GFlops Computing Power
Link to Manufacturer


- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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Benchmarks by AMD

AMD published some relative benchmarks of the new HD 4870 in relation to the old HD 3870. The benchmarks were conducted in 1920x1200 with 4xAA and 8xAF.

Relative performance of the HD 4870 to the HD 3870 conducted with a desktop Phenom x4 9950 in 1920x1200 4xAA, 8xAF
Relative performance of the HD 4870 to the HD 3870 conducted with a desktop Phenom x4 9950 in 1920x1200 4xAA, 8xAF

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Class 1

Class 2

M3 Max 40-Core GPU *
M3 Pro 18-Core GPU *
Radeon PRO W6600M *

Class 3

UHD Graphics 750

Class 4

Class 5

* Approximate position of the graphics adapter