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. 512 MB 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 11.66 percent of a leader's which is NVIDIA TITAN V.

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 (Radeon Pro Duo)
Core clock speed
550 MHz
 
Transistor count
956 million
 
of 21100
Manufacturing process technology
55 nm
 
Texture fill rate
22 GTexel / s
 
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
512 MB
 
of 32
Memory bus width
256 Bit
 
of 8192 (Radeon Pro Duo)
Memory clock speed
1776 MHz
 
of 14000
Memory bandwidth
56.8 GB / s
 
of 1024 (Radeon Pro Duo)
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
10.1
 
OpenGL
3.3
 
of 4.6

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
11.74
 
 
3DMark Vantage Performance
6631
 

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
n/d
 
 
Games benchmarked by notebookcheck.net
Crysis - CPU Benchmark (2007)
high / 768p
44
 
ultra / 1080p
14
 
Crysis - GPU Benchmark (2007)
high / 768p
50
 
ultra / 1080p
15
 

Relative perfomance

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

NVIDIA equivalent

We believe that the nearest equivalent to Mobility Radeon HD 4870 from NVIDIA is GeForce GT 650M SLI, which is slower by 1% and lower by 3 positions in our rating.

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Advices and comments

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