AMD Radeon HD 8870 OEM vs AMD Radeon R7 360
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Jun 2015
Generation
Sea Islands
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1200 MHz
1500 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1050 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
153.6GB/s
96.00GB/s
Render Config
Compute Units
20
12
Shading Units
1280
768
TMUs
80
48
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
16.80 GPixel/s
Texture Rate
80.00 GTexel/s
50.40 GTexel/s
FP32 (float)
2.560 TFLOPS
1.613 TFLOPS
FP64 (double)
160.0 GFLOPS
100.8 GFLOPS
Graphics Processor
GPU Name
Pitcairn
Tobago
GPU Variant
Pitcairn XT(215-0828047)
Tobago PRO(215-0875010)
Architecture
GCN 1.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
2.08 billion
Die Size
212 mm²
160 mm²
Board Design
TDP
175W
100W
Suggested PSU
450 W
300 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
1x 6-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.2
Shader Model
5.1
6.3
📊 Benchmark
3DMark Time Spy
-
1,371
3DMark Time Spy Extreme
-
517