AMD Radeon HD 6870 vs AMD Radeon Pro 460
GPU · Specs Compare
Graphics Card
Release Date
Oct 2010
Oct 2016
Generation
Northern Islands
Radeon Pro Mac
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x8
Clock Speeds
Memory Clock
1050 MHz
1270 MHz
Base Clock
—
850 MHz
Boost Clock
—
907 MHz
Memory
Memory Size
1024MB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
134.4GB/s
81.28GB/s
Render Config
Compute Units
14
16
Shading Units
1120
1024
TMUs
56
64
ROPs
32
16
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
28.80 GPixel/s
14.51 GPixel/s
Texture Rate
50.40 GTexel/s
58.05 GTexel/s
FP32 (float)
2.016 TFLOPS
1.858 TFLOPS
FP16 (half)
—
1.858 TFLOPS
FP64 (double)
—
116.1 GFLOPS
Graphics Processor
GPU Name
Barts
Baffin
GPU Variant
Barts XT(215-0798000)
Baffin XT
Architecture
TeraScale 2
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
40 nm
14 nm
Transistors
1.7 billion
3 billion
Die Size
255 mm²
123 mm²
Board Design
TDP
151W
35W
Suggested PSU
450 W
—
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
No outputs
Power Connectors
2x 6-pin
None
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
Shader Model
5.0
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.