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AMD Radeon HD 6990M

Graphics Processor
Blackcomb
Cores
1120
TMUs
56
ROPs
32
Memory Size
2 GB
Memory Type
GDDR5
Bus Width
256 bit
The Radeon HD 6990M was a graphics card by AMD, launched in July 2011. Built on the 40 nm process, and based on the Blackcomb graphics processor, in its Blackcomb XTX variant, the card supports DirectX 11.2. The Blackcomb graphics processor is an average sized chip with a die area of 212 mm² and 1,700 million transistors. It features 1120 shading units, 56 texture mapping units and 32 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 715 MHz, memory is running at 900 MHz.
Being a mxm module card, the AMD Radeon HD 6990M does not require any additional power connector, its power draw is rated at 100 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it.

Graphics Processor

GPU Name
Blackcomb
GPU Variant
Blackcomb XTX
(216-0811030)
Architecture
TeraScale 2
Foundry
TSMC
Process Size
40 nm
Transistors
1,700 million
Die Size
212 mm²

Mobile Graphics

Release Date
Jul 12th, 2011
Generation
Vancouver
(HD 6900M)
Production
End-of-life
Bus Interface
MXM-B (3.0)

Relative Performance

8%
GeForce 210
10%
GeForce 9400 GT
12%
Radeon HD 4550
16%
Radeon HD 5450
19%
Radeon HD 6450
20%
GeForce GT 520
24%
GeForce GT 220
32%
GeForce GT 430
32%
Radeon HD 5570
35%
Radeon HD 4670
37%
GeForce GT 440
37%
GeForce GT 240
43%
GeForce 9600 GT
46%
Radeon HD 5670
49%
GeForce GT 640
51%
GeForce 9800 GT
53%
Radeon HD 6670
54%
Radeon HD 4830
58%
Radeon HD 4770
61%
Radeon HD 4850
63%
GeForce GTS 250
64%
GeForce GTS 450
67%
Radeon HD 5750
76%
Radeon HD 7750
77%
Radeon HD 5770
78%
GeForce GTX 260
79%
Radeon HD 4870
79%
Radeon Vega 8
80%
GeForce GTX 550 Ti
81%
GeForce GTX 650
85%
Radeon HD 5830
90%
Radeon HD 6790
91%
Radeon HD 4890
95%
GeForce GTX 460
95%
Radeon RX Vega 11
96%
GeForce GT 1030
97%
GeForce GTX 275
98%
Radeon HD 7770 GHz Edition
98%
GeForce GTX 280
100%
GeForce GTX 465
100%
Radeon HD 6990M
104%
Radeon HD 6850
106%
GeForce GTX 285
114%
Radeon HD 5850
116%
GeForce GTX 650 Ti
116%
Radeon HD 7790
121%
Radeon RX 550
121%
GeForce GTX 470
126%
Radeon HD 6870
134%
Radeon HD 5870
139%
GeForce GTX 560 Ti
139%
Radeon HD 4870 X2
142%
GeForce GTX 750 Ti
143%
Radeon HD 6950
147%
GeForce GTX 295
149%
GeForce GTX 650 Ti Boost
150%
Radeon HD 7850
153%
GeForce GTX 480
160%
Radeon HD 6970
163%
Radeon R7 265
166%
Radeon RX 460
166%
Radeon R7 370
166%
GeForce GTX 660
167%
GeForce GTX 570
170%
Radeon RX 560
180%
GeForce GTX 950
182%
Radeon HD 7870 GHz Edition
186%
Radeon R9 270X
188%
GeForce GTX 660 Ti
189%
GeForce GTX 580
191%
GeForce GTX 1050
191%
Radeon HD 7950
195%
Radeon HD 5970
200%
GeForce GTX 760
216%
GeForce GTX 670
221%
GeForce GTX 960
227%
Radeon R9 380
228%
Radeon R9 285
231%
Radeon HD 7970
233%
GeForce GTX 680
239%
GeForce GTX 1050 Ti
245%
GeForce GTX 770
250%
Radeon HD 6990
256%
Radeon R9 280X
260%
GeForce GTX 590
260%
Radeon HD 7970 GHz Edition
288%
GeForce GTX 780
299%
GeForce GTX 1650
317%
Radeon RX 470
322%
Radeon R9 290
339%
Radeon RX 570
343%
Radeon R9 390
345%
Radeon R9 290X
350%
GeForce GTX 970
354%
GeForce GTX TITAN
359%
GeForce GTX 780 Ti
364%
Radeon R9 390X
366%
Radeon HD 7990
367%
Radeon RX 480
371%
GeForce GTX 690
381%
GeForce GTX 1060 6 GB
386%
Radeon RX 5500 OEM
390%
Radeon RX 580
393%
Radeon RX 5500 XT
399%
GeForce GTX 980
402%
GeForce GTX 1650 SUPER
404%
Radeon R9 FURY
422%
Radeon RX 590
444%
Radeon R9 295X2
446%
GeForce GTX 1660
452%
Radeon R9 FURY X
459%
GeForce GTX 980 Ti
471%
GeForce GTX TITAN X
501%
GeForce GTX 1660 SUPER
513%
GeForce GTX 1660 Ti
513%
GeForce GTX 1070
546%
Radeon RX Vega 56
579%
GeForce GTX 1070 Ti
595%
Radeon RX Vega 64
604%
GeForce GTX 1080
604%
GeForce RTX 2060
628%
Radeon RX 5700
678%
GeForce RTX 2060 SUPER
703%
GeForce RTX 2070
719%
Radeon RX 5700 XT
728%
Radeon VII
746%
TITAN X Pascal
769%
GeForce GTX 1080 Ti
777%
GeForce RTX 2070 SUPER
827%
GeForce RTX 2080
876%
GeForce RTX 2080 SUPER
967%
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
715 MHz
Memory Clock
900 MHz
3600 MHz effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
256 bit
Bandwidth
115.2 GB/s

Render Config

Shading Units
1120
TMUs
56
ROPs
32
Compute Units
14
L1 Cache
16 KB (per CU)
L2 Cache
512 KB

Theoretical Performance

Pixel Rate
22.88 GPixel/s
Texture Rate
40.04 GTexel/s
FP32 (float) performance
1.602 TFLOPS

Board Design

Slot Width
MXM Module
TDP
100 W
Outputs
No outputs
Power Connectors
None
Board Number
C296

Graphics Features

DirectX
11.2 (11_0)
OpenGL
4.4
OpenCL
1.2
Vulkan
N/A
Shader Model
5.0

Card Notes

- Polygon throughput: 715M polygons/sec
- Data fetch rate (32-bit): 160 billion fetches/sec
- Anti-aliased pixel fill rate: 91.52 Gigasamples/sec

Blackcomb GPU Notes

Architecture Codename: Northern Islands
Chip Variant: Barts
Graphics/Compute: GFX4
Display Core Engine: 5.0
Unified Video Decoder: 3.1

Retail boards based on this design (2)

Name GPU Clock Memory Clock Other Changes
Dell HD 6990M 790 MHz 1000 MHz
Dell HD 6990M 800 MHz 1000 MHz