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ATI Mobility Radeon HD 3870

Graphics Processor
M88
Cores
320
TMUs
16
ROPs
16
Memory Size
512 MB
Memory Type
GDDR3
Bus Width
256 bit
The Mobility Radeon HD 3870 was a graphics card by ATI, launched in June 2008. Built on the 55 nm process, and based on the M88 graphics processor, the card supports DirectX 10.1. The M88 graphics processor is an average sized chip with a die area of 192 mm² and 666 million transistors. It features 320 shading units, 16 texture mapping units and 16 ROPs. ATI has placed 512 MB GDDR3 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 660 MHz, memory is running at 850 MHz.
Its power draw is rated at 55 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Mobility Radeon HD 3870 is connected to the rest of the system using a PCI-Express 2.0 x16 interface.

Graphics Processor

GPU Name
M88
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
666 million
Die Size
192 mm²

Mobile Graphics

Release Date
Jun 4th, 2008
Generation
M8x
(Mobility HD 3800)
Production
End-of-life
Bus Interface
PCIe 2.0 x16
Reviews
2 in our database

Relative Performance

25%
GeForce 210
33%
GeForce 9400 GT
40%
Radeon HD 4550
51%
Radeon HD 5450
61%
Radeon HD 6450
64%
GeForce GT 520
79%
GeForce GT 220
100%
Mobility Radeon HD 3870
103%
GeForce GT 430
104%
Radeon HD 5570
114%
Radeon HD 4670
120%
GeForce GT 440
122%
GeForce GT 240
140%
GeForce 9600 GT
149%
Radeon HD 5670
160%
GeForce GT 640
165%
GeForce 9800 GT
172%
Radeon HD 6670
178%
Radeon HD 4830
190%
Radeon HD 4770
200%
Radeon HD 4850
204%
GeForce GTS 250
210%
GeForce GTS 450
218%
Radeon HD 5750
249%
Radeon HD 7750
251%
Radeon HD 5770
255%
GeForce GTX 260
258%
Radeon HD 4870
259%
Radeon Vega 8
262%
GeForce GTX 550 Ti
264%
GeForce GTX 650
279%
Radeon HD 5830
294%
Radeon HD 6790
298%
Radeon HD 4890
310%
GeForce GTX 460
312%
Radeon RX Vega 11
315%
GeForce GT 1030
318%
GeForce GTX 275
319%
Radeon HD 7770 GHz Edition
319%
GeForce GTX 280
326%
GeForce GTX 465
341%
Radeon HD 6850
348%
GeForce GTX 285
373%
Radeon HD 5850
380%
GeForce GTX 650 Ti
380%
Radeon HD 7790
396%
Radeon RX 550
397%
GeForce GTX 470
411%
Radeon HD 6870
439%
Radeon HD 5870
453%
GeForce GTX 560 Ti
455%
Radeon HD 4870 X2
463%
GeForce GTX 750 Ti
466%
Radeon HD 6950
482%
GeForce GTX 295
488%
GeForce GTX 650 Ti Boost
491%
Radeon HD 7850
500%
GeForce GTX 480
523%
Radeon HD 6970
533%
Radeon R7 265
542%
Radeon RX 460
542%
Radeon R7 370
544%
GeForce GTX 660
545%
GeForce GTX 570
554%
Radeon RX 560
589%
GeForce GTX 950
594%
Radeon HD 7870 GHz Edition
608%
Radeon R9 270X
616%
GeForce GTX 660 Ti
619%
GeForce GTX 580
624%
GeForce GTX 1050
625%
Radeon HD 7950
637%
Radeon HD 5970
655%
GeForce GTX 760
705%
GeForce GTX 670
724%
GeForce GTX 960
742%
Radeon R9 380
746%
Radeon R9 285
754%
Radeon HD 7970
762%
GeForce GTX 680
779%
GeForce GTX 1050 Ti
800%
GeForce GTX 770
819%
Radeon HD 6990
838%
Radeon R9 280X
850%
GeForce GTX 590
850%
Radeon HD 7970 GHz Edition
942%
GeForce GTX 780
976%
GeForce GTX 1650
1037%
Radeon RX 470
1051%
Radeon R9 290
1108%
Radeon RX 570
1121%
Radeon R9 390
1127%
Radeon R9 290X
1142%
GeForce GTX 970
1158%
GeForce GTX TITAN
1173%
GeForce GTX 780 Ti
1190%
Radeon R9 390X
1195%
Radeon HD 7990
1201%
Radeon RX 480
1211%
GeForce GTX 690
1244%
GeForce GTX 1060 6 GB
1261%
Radeon RX 5500
1276%
Radeon RX 580
1303%
GeForce GTX 980
1314%
GeForce GTX 1650 SUPER
1319%
Radeon R9 FURY
1378%
Radeon RX 590
1451%
Radeon R9 295X2
1459%
GeForce GTX 1660
1476%
Radeon R9 FURY X
1501%
GeForce GTX 980 Ti
1540%
GeForce GTX TITAN X
1639%
GeForce GTX 1660 SUPER
1675%
GeForce GTX 1660 Ti
1675%
GeForce GTX 1070
1783%
Radeon RX Vega 56
1891%
GeForce GTX 1070 Ti
1945%
Radeon RX Vega 64
1973%
GeForce RTX 2060
1973%
GeForce GTX 1080
2054%
Radeon RX 5700
2216%
GeForce RTX 2060 SUPER
2297%
GeForce RTX 2070
2351%
Radeon RX 5700 XT
2378%
Radeon VII
2439%
TITAN X Pascal
2513%
GeForce GTX 1080 Ti
2540%
GeForce RTX 2070 SUPER
2702%
GeForce RTX 2080
2864%
GeForce RTX 2080 SUPER
3161%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
660 MHz
Memory Clock
850 MHz
1700 MHz effective

Memory

Memory Size
512 MB
Memory Type
GDDR3
Memory Bus
256 bit
Bandwidth
54.40 GB/s

Render Config

Shading Units
320
TMUs
16
ROPs
16
Compute Units
4
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
10.56 GPixel/s
Texture Rate
10.56 GTexel/s
FP32 (float) performance
422.4 GFLOPS
FP64 (double) performance
84.48 GFLOPS (1:5)

Board Design

TDP
55 W
Outputs
No outputs

Graphics Features

DirectX
10.1 (10_1)
OpenGL
3.3
OpenCL
N/A
Vulkan
N/A
Shader Model
4.1

M88 GPU Notes

Chip Variant: RV670
Codename: Boom
Graphics/Compute: GFX3
Display Core Engine: 2.0
Unified Video Decoder: 1.0