ATI Mobility Radeon HD 5870

ATI Mobility Radeon HD 5870

The ATI Mobility Radeon HD 5870 is a high-end DirectX 11 capable graphics card by AMD for laptops. At the time of announcement, (Jan 2010) the 5870 paired with GDDR5 memory should be the fastest laptop GPU available, excluding SLI or CrossFire solutions. Technically, the chip is based on the desktop Radeon HD 5770 (RV840) with a slower clock rate.

The memory interface of the Mobility 5870 is composed of two 64 bit wide controllers leading to a 128 bit memory bus that can access up to 1024 MB of DDR3 or GDDR5 memory (or 512 MB GDDR3). If (G)DDR3 is used by the laptop vendor, the performance of the 5870 will become bottlenecked by a noticeable degree.

The HD 5870 offers 800 MADD cores (called Stream Processors) which are grouped in 160 5-dimensional groups. The cores support DirectX 11 functions in hardware (Tessellation, OIT, Post-Processing, Shadows, HDR Texture Compression). Furthermore, 16 ROPs, 40TMUs, and 40 TAUs can be found on the chip. All in all, the approximately 1.04 billion transistors of the 5870 offer a theroretic computation power of up to 1.12 TFLOPS. 

According to AMD, the HD 5000 series has also been improved with regards to general computing (as opposed to the HD 4000 series). Therefore, the performance of ATI stream, OpenCL, and DirectCompute 11 applications should be noticeably better.

Compared to the previous generation such as with the Mobility Radeon HD 4870, the HD 5870 should be about 20% faster, at least according to AMD. HD 5870 cards with GDDR3 memory are expected to have lower performance gains. The gaming performance of the 5870 should be sufficient for all current games (2009-2010) in high resolution and high detail settings. The following games should run fluently in 1920x1200 with 4x Antialiasing: Left4Dead, UT3, Devil May Cry 4, Far Cry 2, ET:Quake Wars, and Wolfenstein MP (over 30 fps according to AMD slides - see below). Compared to the previous leader in the mobile segment, the NVIDIA GeForce GTX 280M, the new HD 5870 should be noticeably faster.

The Mobility Radeon HD 5000 series includes an improved video processor (UVD2) to decode HD videos with the graphics card. Assuming adequate memory bandwidth, the new version can decode two HD streams simultaneously (e.g., for Blu-Ray picture in picture). Beginning from Flash 10.1 Beta, the 5000 series can also accelerate Flash HD videos (e.g., Youtube).

A special feature of the HD 5000 series is its ability to transmit HD audio formats, such as Dolby True HD or DTS HD Master Audio, with up to 8 channels and 192 kHz / 24 Bit over HDMI 1.3a.

Similar to the desktop HD 5000 series, the Mobility HD 5870 also supports Eyefinity to connect up to 6 monitors on a computer. Of course, this depends on how many monitor outputs the laptop can physically support. Furthermore, it appears that only laptops with DisplayPort outputs (e.g., HP Envy 17) can support Eyefinity.

Due to the high power consumption of the Mobility Radeon HD 5870, the GPU is only suited for large laptops with good (and possibly loud) cooling solutions. According to AMD, the performance per watt and the idle power consumption have both been improved thanks to Memory Clock Scaling and Clock Gating. Furthermore, the chip supports PowerXpress (with AMD chipset) and Switchable Graphics (Intel) to switch between dedicated and integrated graphics.

Compared to desktop graphics cards, the Mobility Radeon HD 5870 should perform somewhere between a Radeon HD 5750 and 5770 according to the shader count of the desktop 5770 and the clock rate of the desktop 5750.

ManufacturerATI
Mobility Radeon HD 5800 Series

Mobility Radeon HD 5870 Crossfire

1600 @ 700MHz128 Bit @ 1000MHz
Mobility Radeon HD 5870 800 @ 700MHz128 Bit @ 1000MHz

Mobility Radeon HD 5850

800 @ 625MHz128 Bit @ 2000MHz

Mobility Radeon HD 5830

800 @ 500MHz128 Bit @ 800MHz
CodenameBroadway-XT
ArchitectureTerascale 2
Pipelines800 - unified
Core Speed *700 MHz
Shader Speed *700 MHz
Memory Speed *1000 MHz
Memory Bus Width128 Bit
Memory TypeDDR3, GDDR3, GDDR5
Max. Amount of Memory1024 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
Power Consumption50 Watt
technology40 nm
FeaturesEyefinity (up to 6 displays), HD Audio (Dolby True HD, DTS HD), HDMI 1.3a, Avivo HD (UVD2.2)
Notebook Sizelarge
Date of Announcement07.01.2010
Information1.12 TFLOPS
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 7382      avg: 7614.4 (16%)     median: 7616 (16%)     max: 7903 Points
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 7260      avg: 7929.1 (20%)     median: 7999 (21%)     max: 8548 Points
3DMark 06
0% 100%
min: 12304      avg: 12779.3 (43%)     median: 12677.5 (42%)     max: 13534 Points
3DMark 05 - Standard 1024x768
0% 100%
min: 17224      avg: 18043.9 (49%)     median: 18052.5 (49%)     max: 18983 Points
3DMark 03 - Standard 1024x768
0% 100%
min: 37780      avg: 38524.4 (26%)     median: 38290 (25%)     max: 39415 Points
3DMark 2001SE - Standard 1024x768
0% 100%
min: 36342      avg: 37966.7 (62%)     median: 36969 (60%)     max: 40589 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 24      avg: 24 (13%)     median: 24 (13%)     max: 24 fps
PCMark Vantage - Gaming Score 1024x768
0% 100%
min: 5320      avg: 5881.1 (22%)     median: 5585 (21%)     max: 6544 Points
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 21.72      avg: 32.6 (30%)     median: 28.4 (26%)     max: 44.39 Points
Cinebench R10 - Shading 32Bit
0% 100%
min: 5033      avg: 6269.6 (52%)     median: 6609 (55%)     max: 6957 Points
Windows 7 Experience Index - Gaming graphics
0% 100%
min: 6      avg: 7 (89%)     median: 7.2 (91%)     max: 7.2 points
Windows 7 Experience Index - Graphics
0% 100%
min: 6      avg: 7 (89%)     median: 7.2 (91%)     max: 7.4 points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailled information on the benchmark results, click on the fps number.

Fifa 11

Fifa 11

2010
low 800x600
264 264.3 ~ 264 fps      Compare
med. 1024x768
156 181.6 ~ 169 fps      Compare
high 1360x768
126.8 130 ~ 128 fps      Compare
ultra 1920x1080
90.3  fps      Compare
» With all tested laptops playable in detail settings ultra.
Mafia 2

Mafia 2

2010
low 800x600
68.9  fps      Compare
med. 1024x768
65.7  fps      Compare
high 1360x768
60.7  fps      Compare
ultra 1920x1080
41.1  fps      Compare
» With all tested laptops playable in detail settings ultra.
StarCraft 2
low 1024x768
166 166 170 ~ 167 fps      Compare
med. 1360x768
61.8 63 66 ~ 64 fps      Compare
high 1360x768
56 56 58 ~ 57 fps      Compare
ultra 1920x1080
37.2 45 ~ 41 fps      Compare
» With all tested laptops playable in detail settings ultra.
Metro 2033
low 800x600
85.3  fps      Compare
med. 1360x768
53.5  fps      Compare
high 1600x900
30.5  fps      Compare
ultra 1920x1080
10.9  fps      Compare
» With all tested laptops playable in detail settings med..
Battlefield: Bad Company 2
low 1024x768
104.2 fps  fps      Compare
med. 1366x768
80.5  fps      Compare
high 1366x768
58.6  fps      Compare
ultra 1920x1080
30.9 fps 32.7 fps 33.1 ~ 32 fps      Compare
» With all tested laptops playable in detail settings high.
CoD Modern Warfare 2
low 800x600
161 fps  fps      Compare
med. 1024x768
78 fps 78.2 fps 79.7 ~ 79 fps      Compare
high 1366x768
66.3  fps      Compare
ultra 1920x1080
48.7 fps 50.7 51.1 fps ~ 50 fps      Compare
» With all tested laptops playable in detail settings ultra.
Risen

Risen

2009
low 800x600
108.8  fps      Compare
med. 1024x768
56.2 59.5 ~ 58 fps      Compare
high 1366x768
40.9  fps      Compare
ultra 1920x1080
31.6  fps      Compare
» With all tested laptops playable in detail settings high.
Resident Evil 5

Resident Evil 5

2009
low 800x600
97.9  fps      Compare
high 1360x768
77.5  fps      Compare
ultra 1920x1080
56.1  fps      Compare
» With all tested laptops playable in detail settings ultra.
Need for Speed Shift

Need for Speed Shift

2009
low 800x600
57.8  fps      Compare
med. 1024x768
47.1 54.1 fps 59.4 ~ 54 fps      Compare
high 1366x768
52.3  fps      Compare
ultra 1920x1080
41.5 43.3 fps ~ 42 fps      Compare
» With all tested laptops playable in detail settings ultra.
Colin McRae: DIRT 2

Colin McRae: DIRT 2

2009
low 800x600
112.9  fps      Compare
med. 1024x768
72.8 fps 76.2 94.7 ~ 81 fps      Compare
high 1360x768
48.5  fps      Compare