AMD Radeon HD 6850 vs AMD Radeon R9 M270X
GPU Specs Compare
Graphics Card
Release Date
Oct 2010
Feb 2015
Generation
Northern Islands
Gem System
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1000 MHz
1375 MHz
Base Clock
-
900 MHz
Boost Clock
-
1000 MHz
Memory
Memory Size
1024MB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
128.0GB/s
88.00GB/s
Render Config
Compute Units
12
12
Shading Units
960
768
TMUs
48
48
ROPs
32
16
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Theoretical Performance
Pixel Rate
24.80 GPixel/s
16.00 GPixel/s
Texture Rate
37.20 GTexel/s
48.00 GTexel/s
FP32 (float)
1488 GFLOPS
1.536 TFLOPS
FP64 (double)
-
96.00 GFLOPS
Graphics Processor
GPU Name
Barts
Saturn
GPU Variant
Barts PRO(215-0798006)
Saturn PRO(216-0843044)
Architecture
TeraScale 2
GCN 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
1.7 billion
2.08 billion
Die Size
255 mm²
160 mm²
Board Design
TDP
127W
Unknown
Suggested PSU
300 W
-
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Portable Device Dependent
Power Connectors
1x 6-pin
-
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2.170
Shader Model
5.0
6.5