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ATI Mobility Radeon HD 3850 X2

Graphics Processor
M88 x2
Cores
320 x2
TMUs
16 x2
ROPs
16 x2
Memory Size
512 MB x2
Memory Type
GDDR3
Bus Width
256 bit x2
The Mobility Radeon HD 3850 X2 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. Mobility Radeon HD 3850 X2 combines two graphics processors to increase performance. It features 320 shading units, 16 texture mapping units and 16 ROPs per GPU. ATI has placed 1,024 MB GDDR3 memory on the card, which are connected using a 256-bit memory interface per GPU (each GPU manages 512 MB). The GPU is operating at a frequency of 580 MHz, memory is running at 750 MHz.
Its power draw is rated at 70 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Mobility Radeon HD 3850 X2 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

28%
GeForce 210
37%
GeForce 9400 GT
45%
Radeon HD 4550
57%
Radeon HD 5450
68%
Radeon HD 6450
71%
GeForce GT 520
88%
GeForce GT 220
100%
Mobility Radeon HD 3850 X2
115%
GeForce GT 430
117%
Radeon HD 5570
127%
Radeon HD 4670
134%
GeForce GT 440
137%
GeForce GT 240
157%
GeForce 9600 GT
167%
Radeon HD 5670
179%
GeForce GT 640
185%
GeForce 9800 GT
192%
Radeon HD 6670
198%
Radeon HD 4830
212%
Radeon HD 4770
223%
Radeon HD 4850
228%
GeForce GTS 250
235%
GeForce GTS 450
243%
Radeon HD 5750
278%
Radeon HD 7750
280%
Radeon HD 5770
285%
GeForce GTX 260
288%
Radeon HD 4870
289%
Radeon Vega 8
292%
GeForce GTX 550 Ti
295%
GeForce GTX 650
312%
Radeon HD 5830
328%
Radeon HD 6790
333%
Radeon HD 4890
346%
GeForce GTX 460
348%
Radeon RX Vega 11
352%
GeForce GT 1030
355%
GeForce GTX 275
356%
Radeon HD 7770 GHz Edition
357%
GeForce GTX 280
364%
GeForce GTX 465
381%
Radeon HD 6850
388%
GeForce GTX 285
417%
Radeon HD 5850
424%
GeForce GTX 650 Ti
424%
Radeon HD 7790
442%
Radeon RX 550
443%
GeForce GTX 470
459%
Radeon HD 6870
490%
Radeon HD 5870
506%
GeForce GTX 560 Ti
508%
Radeon HD 4870 X2
517%
GeForce GTX 750 Ti
520%
Radeon HD 6950
538%
GeForce GTX 295
545%
GeForce GTX 650 Ti Boost
549%
Radeon HD 7850
558%
GeForce GTX 480
584%
Radeon HD 6970
595%
Radeon R7 265
605%
Radeon RX 460
605%
Radeon R7 370
607%
GeForce GTX 660
609%
GeForce GTX 570
619%
Radeon RX 560
658%
GeForce GTX 950
663%
Radeon HD 7870 GHz Edition
679%
Radeon R9 270X
688%
GeForce GTX 660 Ti
691%
GeForce GTX 580
696%
GeForce GTX 1050
698%
Radeon HD 7950
712%
Radeon HD 5970
732%
GeForce GTX 760
788%
GeForce GTX 670
808%
GeForce GTX 960
829%
Radeon R9 380
833%
Radeon R9 285
842%
Radeon HD 7970
851%
GeForce GTX 680
870%
GeForce GTX 1050 Ti
893%
GeForce GTX 770
914%
Radeon HD 6990
936%
Radeon R9 280X
949%
GeForce GTX 590
950%
Radeon HD 7970 GHz Edition
1052%
GeForce GTX 780
1089%
GeForce GTX 1650
1158%
Radeon RX 470
1173%
Radeon R9 290
1237%
Radeon RX 570
1252%
Radeon R9 390
1259%
Radeon R9 290X
1276%
GeForce GTX 970
1292%
GeForce GTX TITAN
1310%
GeForce GTX 780 Ti
1329%
Radeon R9 390X
1334%
Radeon HD 7990
1341%
Radeon RX 480
1352%
GeForce GTX 690
1389%
GeForce GTX 1060 6 GB
1408%
Radeon RX 5500
1425%
Radeon RX 580
1454%
GeForce GTX 980
1467%
GeForce GTX 1650 SUPER
1473%
Radeon R9 FURY
1539%
Radeon RX 590
1620%
Radeon R9 295X2
1629%
GeForce GTX 1660
1648%
Radeon R9 FURY X
1676%
GeForce GTX 980 Ti
1720%
GeForce GTX TITAN X
1830%
GeForce GTX 1660 SUPER
1871%
GeForce GTX 1660 Ti
1871%
GeForce GTX 1070
1991%
Radeon RX Vega 56
2112%
GeForce GTX 1070 Ti
2172%
Radeon RX Vega 64
2202%
GeForce RTX 2060
2202%
GeForce GTX 1080
2293%
Radeon RX 5700
2474%
GeForce RTX 2060 SUPER
2564%
GeForce RTX 2070
2625%
Radeon RX 5700 XT
2655%
Radeon VII
2724%
TITAN X Pascal
2806%
GeForce GTX 1080 Ti
2836%
GeForce RTX 2070 SUPER
3017%
GeForce RTX 2080
3198%
GeForce RTX 2080 SUPER
3530%
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
580 MHz
Memory Clock
750 MHz
1500 MHz effective

Memory

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

Render Config

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

Theoretical Performance

Pixel Rate
9.280 GPixel/s
Texture Rate
9.280 GTexel/s
FP32 (float) performance
371.2 GFLOPS
FP64 (double) performance
74.24 GFLOPS (1:5)

Board Design

TDP
70 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