GPU Comparison
RADEON
AMD Radeon HD 8870M
CORE STATE
Venus
VRAM
2 GB
CLOCK SPEED
775 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
RADEON
Radeon RX 560X
CORE STATE
Polaris 21
VRAM
4 GB
CLOCK SPEED
1275 MHz
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 8870M
RX 560X
Core Specs
Shading Units
640
1,024
+60.0%
Shaders
640
1,024
+60.0%
TMUs
40
64
+60.0%
ROPs
16
16
0.0%
Compute Units
10
16
+60.0%
Clocks
Base Clock
725 MHz
1175 MHz
Boost Clock
775 MHz
1275 MHz
Memory Clock
1125 MHz
4.5 Gbps effective
1750 MHz
7 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
72.00 GB/s
112.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
1024 KB
Performance
Pixel Rate
12.40 GPixel/s
20.40 GPixel/s
Texture Rate
31.00 GTexel/s
81.60 GTexel/s
FP32 (TFLOPS)
992.0 GFLOPS
2.611 TFLOPS
FP64 (TFLOPS)
62.00 GFLOPS (1:16)
163.2 GFLOPS (1:16)
FP16 (TFLOPS)
—
2.611 TFLOPS (1:1)
Power
TDP
—
75 W
TDP (W)
—
75
Suggested PSU
—
250 W
Power Connectors
—
None
Architecture
Architecture
GCN 1.0
GCN 4.0
GPU Name
Venus
Polaris 21
Generation
Solar System
(HD 8800M)
Polaris
(RX 500X)
Process Size
28 nm
14 nm
Transistors
1,500 million
3,000 million
Die Size
123 mm²
123 mm²
Foundry
TSMC
GlobalFoundries
Density
12.2M / mm²
24.4M / mm²
API Support
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.3
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.7
Physical
Slot Width
—
Dual-slot
Length
—
170 mm
6.7 inches
Outputs
—
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
London
Polaris
Successor
Gem System
Vega