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AMD Radeon R9 M275X

Venus
Graphics Processor
640
Cores
40
TMUs
16
ROPs
2 GB
Memory Size
GDDR5
Memory Type
128 bit
Bus Width
AMD Venus Photo
The Radeon R9 M275X was a graphics card by AMD, launched in January 2014. Built on the 28 nm process, and based on the Venus graphics processor, in its Venus XTX variant, the card supports DirectX 12.0. The Venus graphics processor is an average sized chip with a die area of 123 mm² and 1,500 million transistors. It features 640 shading units, 40 texture mapping units and 16 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 900 MHz, which can be boosted up to 925 MHz, memory is running at 1125 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. Radeon R9 M275X is connected to the rest of the system using a PCI-Express 3.0 x16 interface.

Graphics Processor

GPU Name
Venus
GPU Variant
Venus XTX
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
1,500 million
Die Size
123 mm²

Graphics Card

Release Date
Jan 28th, 2014
Generation
Crystal System
(R9 M200)
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Relative Performance

9%
11%
14%
17%
21%
22%
27%
35%
35%
39%
41%
41%
48%
51%
54%
56%
58%
60%
64%
68%
69%
71%
74%
84%
85%
87%
88%
88%
89%
89%
95%
100%
100%
Radeon R9 M275X
101%
105%
106%
107%
108%
108%
108%
110%
116%
118%
127%
129%
129%
134%
135%
139%
149%
154%
154%
157%
158%
163%
165%
167%
169%
177%
181%
184%
184%
184%
185%
200%
201%
206%
209%
210%
211%
212%
216%
216%
222%
239%
245%
252%
253%
256%
258%
264%
271%
278%
284%
288%
288%
319%
352%
356%
380%
382%
387%
393%
396%
398%
403%
405%
407%
411%
433%
442%
447%
447%
492%
501%
509%
547%
601%
622%
670%
670%
707%
789%
827%
848%
925%
1052%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
900 MHz
Boost Clock
925 MHz
Memory Clock
1125 MHz
4500 MHz effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
128 bit
Bandwidth
72.00 GB/s

Render Config

Shading Units
640
TMUs
40
ROPs
16
Compute Units
10

Theoretical Performance

Pixel Rate
14.80 GPixel/s
Texture Rate
37.00 GTexel/s
FP32 (float) performance
1,184 GFLOPS
FP64 (double) performance
74.00 GFLOPS (1:16)

Board Design

TDP
unknown
Outputs
No outputs

Graphics Features

DirectX
12.0 (11_1)
OpenGL
4.5
OpenCL
1.2
Vulkan
1.1.82
Shader Model
5.1

Venus GPU Notes

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