AMD Radeon R9 285 vs AMD Radeon E9550 MXM
GPU · Specs Compare
Graphics Card
Release Date
Sep 2014
Sep 2016
Generation
Volcanic Islands
Embedded
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1375 MHz
1250 MHz
Base Clock
—
1120 MHz
Boost Clock
—
1266 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
176.0GB/s
160.0GB/s
Render Config
Compute Units
28
36
Shading Units
1792
2304
TMUs
112
144
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
29.38 GPixel/s
40.51 GPixel/s
Texture Rate
102.8 GTexel/s
182.3 GTexel/s
FP16 (half)
3.290 TFLOPS
5.834 TFLOPS
FP32 (float)
3.290 TFLOPS
5.834 TFLOPS
FP64 (double)
205.6 GFLOPS
364.6 GFLOPS
Graphics Processor
GPU Name
Tonga
Ellesmere
GPU Variant
Tonga PRO(215-0851128)
Ellesmere XT
Architecture
GCN 3.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
5 billion
5.7 billion
Die Size
366 mm²
232 mm²
Board Design
TDP
190W
95W
Suggested PSU
450 W
—
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2.170
1.2
Shader Model
6.5
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.