ATI Mobility Radeon HD 4850: specs and benchmarks

ATI Mobility Radeon HD 4850


ATI started Mobility Radeon HD 4850 sales 9 January 2009. This is TeraScale 2 architecture notebook card based on 55 nm manufacturing process and primarily aimed at office use. 1 GB of GDDR3 memory clocked at 1.7 GHz are supplied, and together with 256 Bit memory interface this creates a bandwidth of 54.4 GB/s.

Compatibility-wise, this is card attached via PCIe 2.0 x16 interface.

It provides poor gaming and benchmark performance at 4.64 percent of a leader's which is AMD Radeon R9 390 X2.

General info

Of Mobility Radeon HD 4850's architecture, market type and release date.
Place in performance rating
TeraScale 2
Code name
Release date
9 January 2009

Technical specs

Mobility Radeon HD 4850's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Mobility Radeon HD 4850's performance, but for precise assessment you have to consider its benchmark and gaming test results.
of 8192 (FirePro S9300 X2)
Core clock speed
500 MHz
Transistor count
956 million
of 21100
Manufacturing process technology
55 nm
of 12
Texture fill rate
of 20896 (Tesla M10)
Floating-point performance
800.0 gflops

Compatibility, dimensions and requirements

Information on Mobility Radeon HD 4850's compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
Laptop size
PCIe 2.0 x16

Memory specs

Parameters of memory installed on Mobility Radeon HD 4850: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
Maximum RAM amount
1 GB
of 32 (Tesla M10)
Memory bus width
256 Bit
of 8192 (FirePro S9300 X2)
Memory clock speed
1700 MHz
Memory bandwidth
54.4 GB/s
of 11404 (GRID K1)
Shared memory


Technological solutions and APIs supported by Mobility Radeon HD 4850. You'll probably need this information if you need some particular technology for your purposes.
1x Dual-Link/Single-Link DVI
PCI-E 2.0 x16
1x Single-Link DVI Support (all display ports have to be supported by the laptop manufacturer)
DisplayPort support up to 2560x1600
HDMI support up to 1920x1080 (both with 7.1 AC3 Audio)

API support

APIs supported by Mobility Radeon HD 4850, sometimes including their particular versions.
DirectX 10.1, Shader 4.1

Video card benchmarks performance

Non-gaming benchmarks performance of Mobility Radeon HD 4850. Note that overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance
3DMark Vantage Performance

Game benchmarks (in FPS)

Let's see how good Mobility Radeon HD 4850 is for gaming. Particular gaming benchmark results are measured in FPS, while overall gaming performance is a number in 0-100 range, and the older the game, the less impact it has on the overall grade.
Overall gaming performance
Games benchmarked by
GTA IV - Grand Theft Auto (2008)
low / 600p
medium / 768p
Crysis - CPU Benchmark (2007)
low / 768p
medium / 768p
high / 768p
Crysis - GPU Benchmark (2007)
low / 768p
medium / 768p
high / 768p
World of Warcraft (2005)
medium / 768p
high / 1024p

Relative perfomance

Overall Mobility Radeon HD 4850 performance compared to its nearest competitors. All GPU types participate.

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Compare Mobility Radeon HD 4850 with others

Other GPUs

Advices and comments

Here you can ask a question about Mobility Radeon HD 4850, agree or disagree with our judgements, or report an error or mismatch.