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AMD Radeon HD 8670M

Graphics Processor
Mars
Cores
384
TMUs
24
ROPs
8
Memory Size
1024 MB
Memory Type
DDR3
Bus Width
64 bit
GPU Chip
GPU
The Radeon HD 8670M was a mobile graphics chip by AMD, launched on March 1st, 2013. Built on the 28 nm process, and based on the Mars graphics processor, in its Mars S3 XT variant, the chip supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. The Mars graphics processor is a relatively small chip with a die area of only 77 mm² and 950 million transistors. It features 384 shading units, 24 texture mapping units, and 8 ROPs. AMD has paired 1,024 MB DDR3 memory with the Radeon HD 8670M, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 775 MHz, which can be boosted up to 825 MHz, memory is running at 900 MHz.
Its power draw is not exactly known. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. Radeon HD 8670M is connected to the rest of the system using a PCI-Express 3.0 x8 interface.

Graphics Processor

GPU Name
Mars
GPU Variant
Mars S3 XT
(216-0842018)
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
950 million
Density
12.3M / mm²
Die Size
77 mm²
Chip Package
FCBGA-631/962

Mobile Graphics

Release Date
Mar 1st, 2013
Generation
Solar System
(HD 8600M)
Predecessor
London
Successor
Gem System
Production
End-of-life
Bus Interface
PCIe 3.0 x8

Relative Performance

GeForce 210
13%
GeForce 9400 GT
17%
Radeon HD 4550
21%
Radeon HD 5450
27%
Radeon HD 6450
31%
GeForce GT 520
33%
GeForce GT 220
41%
GeForce GT 430
54%
Radeon HD 5570
54%
Radeon HD 4670
59%
GeForce GT 440
62%
GeForce GT 240
64%
GeForce 9600 GT
73%
Radeon HD 5670
78%
GeForce GT 640
83%
GeForce 9800 GT
86%
Radeon HD 6670
89%
Radeon HD 4830
92%
Radeon HD 4770
99%
Radeon HD 8670M
100%
Radeon HD 4850
104%
GeForce GTS 250
106%
GeForce GTS 450
109%
Radeon HD 5750
113%
Radeon HD 7750
129%
Radeon HD 5770
130%
GeForce GTX 260
133%
Radeon HD 4870
134%
Radeon Vega 8
135%
GeForce GTX 550 Ti
136%
GeForce GTX 650
137%
Radeon HD 5830
145%
Radeon HD 6790
153%
Radeon HD 4890
155%
GeForce GTX 460
161%
Radeon RX Vega 11
162%
GeForce GT 1030
164%
GeForce GTX 275
165%
Radeon HD 7770 GHz Edition
166%
GeForce GTX 280
166%
GeForce GTX 465
169%
Radeon HD 6850
177%
GeForce GTX 285
181%
Radeon HD 5850
194%
GeForce GTX 650 Ti
198%
Radeon HD 7790
198%
Radeon RX 550
206%
GeForce GTX 470
206%
Radeon HD 6870
214%
Radeon HD 5870
228%
GeForce GTX 560 Ti
235%
Radeon HD 4870 X2
237%
GeForce GTX 750 Ti
241%
Radeon HD 6950
242%
GeForce GTX 295
251%
GeForce GTX 650 Ti Boost
254%
Radeon HD 7850
255%
GeForce GTX 480
260%
Radeon HD 6970
272%
Radeon R7 265
277%
Radeon RX 460
282%
Radeon R7 370
282%
GeForce GTX 660
283%
GeForce GTX 570
284%
Radeon RX 560
288%
GeForce GTX 950
306%
Radeon HD 7870 GHz Edition
309%
Radeon R9 270X
316%
GeForce GTX 660 Ti
320%
GeForce GTX 580
322%
GeForce GTX 1050
324%
Radeon HD 7950
325%
GeForce GTX 1630
331%
Radeon HD 5970
331%
GeForce GTX 760
341%
GeForce GTX 670
367%
GeForce GTX 960
376%
Radeon R9 380
386%
Radeon R9 285
388%
Radeon HD 7970
392%
GeForce GTX 680
396%
GeForce GTX 1050 Ti
405%
GeForce GTX 770
416%
Radeon HD 6990
425%
Radeon R9 280X
436%
GeForce GTX 590
442%
Radeon HD 7970 GHz Edition
442%
GeForce GTX 780
490%
Arc A380
490%
Radeon RX 6400
497%
GeForce GTX 1650
507%
Radeon RX 470
539%
Radeon R9 290
546%
Radeon RX 570
576%
Radeon R9 390
583%
Radeon R9 290X
586%
GeForce GTX 970
594%
GeForce GTX TITAN
602%
GeForce GTX 780 Ti
610%
Radeon R9 390X
618%
Radeon HD 7990
621%
Radeon RX 480
624%
GeForce GTX 690
629%
GeForce GTX 1060 6 GB
646%
Radeon RX 5500 OEM
655%
Radeon RX 580
663%
Radeon RX 5500 XT
668%
Radeon RX 6500 XT
674%
GeForce GTX 980
677%
GeForce GTX 1650 SUPER
683%
Radeon R9 FURY
686%
Radeon RX 590
716%
Radeon R9 295X2
754%
GeForce GTX 1660
758%
Radeon R9 FURY X
767%
GeForce GTX 980 Ti
780%
GeForce GTX TITAN X
801%
GeForce GTX 1660 SUPER
825%
GeForce GTX 1070
871%
GeForce GTX 1660 Ti
871%
GeForce RTX 3050 8 GB
885%
Radeon RX Vega 56
927%
GeForce GTX 1070 Ti
983%
Radeon RX 5600 XT
998%
Radeon RX Vega 64
1011%
GeForce GTX 1080
1025%
GeForce RTX 2060
1025%
Radeon RX 5700
1067%
Arc A580
1070%
Radeon RX 6600
1114%
GeForce RTX 2060 SUPER
1152%
GeForce RTX 2070
1167%
Radeon RX 5700 XT
1168%
GeForce RTX 3060 12 GB
1191%
Arc A750
1229%
Radeon VII
1236%
TITAN X Pascal
1268%
Radeon RX 6600 XT
1281%
GeForce GTX 1080 Ti
1306%
Arc A770
1319%
GeForce RTX 2070 SUPER
1320%
Radeon RX 6650 XT
1389%
Radeon RX 7600
1404%
GeForce RTX 4060
1411%
GeForce RTX 2080
1420%
Radeon RX 7600 XT
1449%
GeForce RTX 2080 SUPER
1489%
GeForce RTX 3060 Ti
1525%
Radeon RX 6700 XT
1579%
Radeon RX 6750 XT
1676%
GeForce RTX 4060 Ti 8 GB
1694%
GeForce RTX 2080 Ti
1707%
GeForce RTX 3070
1786%
GeForce RTX 3070 Ti
1911%
Radeon RX 7700 XT
1931%
Radeon RX 6800
1969%
GeForce RTX 4070
2181%
Radeon RX 6800 XT
2236%
GeForce RTX 3080
2321%
Radeon RX 7800 XT
2344%
Radeon RX 6900 XT
2409%
GeForce RTX 4070 SUPER
2530%
Radeon RX 7900 GRE
2579%
GeForce RTX 3080 Ti
2600%
Radeon RX 6950 XT
2603%
GeForce RTX 3090
2649%
GeForce RTX 4070 Ti
2716%
GeForce RTX 4070 Ti SUPER
2967%
Radeon RX 7900 XT
3047%
GeForce RTX 3090 Ti
3073%
GeForce RTX 4080
3450%
GeForce RTX 4080 SUPER
3502%
Radeon RX 7900 XTX
3535%
GeForce RTX 4090
4334%
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

Base Clock
775 MHz
Boost Clock
825 MHz
Memory Clock
900 MHz
1800 Mbps effective

Memory

Memory Size
1024 MB
Memory Type
DDR3
Memory Bus
64 bit
Bandwidth
14.40 GB/s

Render Config

Shading Units
384
TMUs
24
ROPs
8
Compute Units
6
L1 Cache
16 KB (per CU)
L2 Cache
128 KB

Theoretical Performance

Pixel Rate
6.600 GPixel/s
Texture Rate
19.80 GTexel/s
FP32 (float)
633.6 GFLOPS

Board Design

TDP
unknown
Outputs
Portable Device Dependent

Graphics Features

DirectX
12 (11_1)
OpenGL
4.6
OpenCL
2.1 (1.2)
Vulkan
1.2.170
Shader Model
6.5 (5.1)

Mars GPU Notes

Generation: Sea Islands
Desktop Variant: Oland
Mobile Variant: Opal / Litho
Codename: Tiran
Graphics/Compute: GFX6 (gfx601)
Display Core Engine: 6.4
Unified Video Decoder: 4.0
Video Compression Engine: 1.0
CLRX: GCN 1.0
Nov 12th, 2024 18:22 EST change timezone

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