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AMD Radeon HD 7970M

Wimbledon
Graphics Processor
1280
Cores
80
TMUs
32
ROPs
2 GB
Memory Size
GDDR5
Memory Type
256 bit
Bus Width
AMD Radeon HD 7970M Photo AMD Wimbledon Photo
The Radeon HD 7970M was a graphics card by AMD, launched in April 2012. Built on the 28 nm process, and based on the Wimbledon graphics processor, in its Wimbledon XT variant, the card supports DirectX 12.0. The Wimbledon graphics processor is an average sized chip with a die area of 212 mm² and 2,800 million transistors. It features 1280 shading units, 80 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 850 MHz, memory is running at 1200 MHz.
Being a mxm module card, the AMD Radeon HD 7970M 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
Wimbledon
GPU Variant
Wimbledon XT
(216-0836036)
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
2,800 million
Die Size
212 mm²

Graphics Card

Release Date
Apr 24th, 2012
Generation
London
(HD 7900M)
Production
End-of-life
Bus Interface
MXM-B (3.0)

Relative Performance

5%
7%
8%
10%
12%
13%
16%
21%
21%
23%
24%
25%
29%
30%
32%
34%
35%
36%
38%
41%
41%
43%
44%
50%
51%
52%
52%
53%
53%
54%
57%
60%
61%
63%
63%
64%
65%
65%
65%
66%
69%
71%
76%
77%
77%
80%
81%
84%
89%
92%
92%
94%
95%
98%
99%
100%
100%
Radeon HD 7970M
101%
106%
108%
110%
110%
110%
111%
120%
121%
124%
125%
126%
127%
127%
129%
129%
133%
143%
147%
151%
152%
153%
155%
158%
162%
166%
170%
173%
173%
191%
210%
213%
228%
229%
232%
235%
237%
238%
242%
243%
244%
246%
259%
264%
268%
268%
295%
300%
305%
328%
360%
373%
401%
401%
423%
472%
495%
508%
554%
630%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
850 MHz
Memory Clock
1200 MHz
4800 MHz effective

Memory

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

Render Config

Shading Units
1280
TMUs
80
ROPs
32
Compute Units
20

Theoretical Performance

Pixel Rate
27.20 GPixel/s
Texture Rate
68.00 GTexel/s
FP32 (float) performance
2,176 GFLOPS
FP64 (double) performance
136.0 GFLOPS (1:16)

Board Design

Slot Width
MXM Module
TDP
100 W
Outputs
No outputs
Power Connectors
None
Board Number
C429

Graphics Features

DirectX
12.0 (11_1)
OpenGL
4.5
OpenCL
1.2
Vulkan
1.1.77
Shader Model
5.1

Card Notes

- 512KB L2 read/write cache

Wimbledon GPU Notes

Chip Variant: Pitcairn
Graphics/Compute: GFX6 (gfx601)
Display Core Engine: 6.0
Unified Video Decoder: 4.0
Video Compression Engine: 1.0

Retail boards based on this design (1)

Name GPU Clock Memory Clock Other Changes
Dell HD 7970M 850 MHz 1200 MHz