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AMD Radeon HD 6770M Mac Edition

Whistler
Graphics Processor
480
Cores
24
TMUs
8
ROPs
512 MB
Memory Size
GDDR5
Memory Type
128 bit
Bus Width
AMD Radeon HD 6770M Mac Edition Image AMD Whistler Image
The Radeon HD 6770M Mac Edition was a graphics card by AMD, launched in January 2011. Built on the 40 nm process, and based on the Whistler graphics processor, in its Whistler XT variant, the card supports DirectX 11.0. The Whistler graphics processor is an average sized chip with a die area of 104 mm² and 716 million transistors. It features 480 shading units, 24 texture mapping units and 8 ROPs. AMD has placed 512 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 725 MHz, memory is running at 900 MHz.
We recommend the AMD Radeon HD 6770M Mac Edition for gaming with highest details at resolutions up to, and including, 1024x768.
Being a mxm module card, its power draw is rated at 35 W maximum.

Graphics Processor

GPU Name: Whistler
GPU Variant: Whistler XT
Architecture: TeraScale 2
Process Size: 40 nm
Transistors: 716 million
Die Size: 104 mm²

Graphics Card

Released: Jan 28th, 2011
Production Status: End-of-life
Bus Interface: MXM-A (3.0)

Relative Performance

16%
21%
26%
33%
39%
41%
51%
66%
67%
73%
77%
78%
90%
96%
100%
Radeon HD 6770M Mac Edition
103%
106%
110%
114%
122%
128%
131%
135%
140%
159%
161%
164%
166%
168%
169%
179%
188%
191%
198%
204%
204%
205%
209%
219%
223%
239%
244%
244%
254%
264%
281%
290%
292%
297%
299%
309%
313%
315%
320%
335%
342%
347%
348%
350%
377%
381%
390%
395%
397%
401%
408%
409%
420%
452%
464%
476%
478%
483%
488%
513%
525%
537%
545%
545%
604%
674%
719%
723%
732%
742%
752%
755%
763%
766%
776%
835%
846%
846%
877%
957%
999%
1034%
1133%
1170%
1264%
1336%
1564%
1610%
Based on TPU review data: "Performance Summary" at 1920x1080
Radeon HD 6770M Mac Edition performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock: 725 MHz
Memory Clock: 900 MHz
3600 MHz effective

Memory

Memory Size: 512 MB
Memory Type: GDDR5
Memory Bus: 128 bit
Bandwidth: 57.60 GB/s

Render Config

Shading Units: 480
TMUs: 24
ROPs: 8
Compute Units: 6
Pixel Rate: 5.800 GPixel/s
Texture Rate: 17.40 GTexel/s
Floating-point performance: 696.0 GFLOPS

Board Design

Slot Width: MXM Module
TDP: 35 W

Graphics Features

DirectX: 11.0
OpenGL: 4.4
OpenCL: 1.2
Shader Model: 5.0

Card Notes

Variant Memory: 1024MB GDDR5