AMD Radeon R9 M290X vs AMD Radeon HD 6850 1440SP Edition
GPU · Specs Compare
Graphics Card
Release Date
Jan 2014
Aug 2012
Generation
Gem System
Northern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
850 MHz
—
Boost Clock
900 MHz
—
Memory Clock
1200 MHz
1000 MHz
Memory
Memory Size
4GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
153.6GB/s
128.0GB/s
Render Config
Compute Units
20
18
Shading Units
1280
1440
TMUs
80
72
ROPs
32
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
28.80 GPixel/s
23.20 GPixel/s
Texture Rate
72.00 GTexel/s
52.20 GTexel/s
FP32 (float)
2.304 TFLOPS
2.088 TFLOPS
FP64 (double)
144.0 GFLOPS
417.6 GFLOPS
Graphics Processor
GPU Name
Neptune
Cypress
GPU Variant
Neptune XT(216-0847000)
Cypress PRO(215-0735043)
Architecture
GCN 1.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
2.8 billion
2.154 billion
Die Size
212 mm²
334 mm²
Board Design
TDP
100W
151W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
None
2x 6-pin
Suggested PSU
—
450 W
Graphics Features
DirectX
12 (11_1)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.1 (1.2)
1.2
Vulkan
1.2.170
N/A
Shader Model
6.5 (5.1)
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.