ATI Mobility Radeon HD 4870: specs and benchmarks

ATI Mobility Radeon HD 4870

Summary

ATI started Mobility Radeon HD 4870 sales 9 January 2009. This is TeraScale 2 architecture notebook card based on 55 nm manufacturing process and primarily aimed at gamers. 0.5 GB of GDDR3 memory clocked at 1.78 GHz are supplied, and together with 256 Bit memory interface this creates a bandwidth of 56.8 GB/s.

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

It provides poor gaming and benchmark performance at 5.83 percent of a leader's which is AMD Radeon R9 390 X2.

General info

Of Mobility Radeon HD 4870's architecture, market type and release date.
Place in performance rating
 
Architecture
TeraScale 2
 
Code name
M98
 
Type
Laptop
 
Release date
9 January 2009
 

Technical specs

Mobility Radeon HD 4870'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 4870's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Pipelines
800
 
of 8192 (FirePro S9300 X2)
Core clock speed
550 MHz
 
Transistor count
956 million
 
of 21100
Manufacturing process technology
55 nm
 
of 12
Texture fill rate
22.00
 
of 512 (Radeon Pro Duo)
Floating-point performance
880.0 gflops
 
of 16384 (Radeon Pro Duo)

Compatibility, dimensions and requirements

Information on Mobility Radeon HD 4870'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
large
 
Interface
PCIe 2.0 x16
 

Memory specs

Parameters of memory installed on Mobility Radeon HD 4870: 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
GDDR3
 
Maximum RAM amount
0.5 GB
 
of 32
Memory bus width
256 Bit
 
of 8192 (FirePro S9300 X2)
Memory clock speed
1776 MHz
 
Memory bandwidth
56.8 GB/s
 
of 1024 (FirePro S9300 X2)
Shared memory
-
 

Technologies

Technological solutions and APIs supported by Mobility Radeon HD 4870. You'll probably need this information if you need some particular technology for your purposes.
Powerplay
+
 
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 4870, sometimes including their particular versions.
DirectX
DirectX 10.1, Shader 4.1
 

Video card benchmarks performance

Non-gaming benchmarks performance of Mobility Radeon HD 4870. Note that overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance
5.83
 
 
3DMark Vantage Performance
6631.00
 
 

Game benchmarks (in FPS)

Let's see how good Mobility Radeon HD 4870 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
0.17
 
 
Games benchmarked by notebookcheck.net
Crysis - CPU Benchmark (2007)
high / 768p
43.90
 
ultra / 1080p
13.50
 
Crysis - GPU Benchmark (2007)
high / 768p
50.00
 
ultra / 1080p
14.50
 

Relative perfomance

Overall Mobility Radeon HD 4870 performance compared to its nearest competitors. All GPU types participate.

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Advices and comments

Here you can ask a question about Mobility Radeon HD 4870, agree or disagree with our judgements, or report an error or mismatch.