GPU Comparison
RADEON
AMD Radeon R5 M255
CORE STATE
Topaz
VRAM
2 GB
CLOCK SPEED
940 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2014
VS
RADEON
Radeon RX 560
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
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
R5 M255
RX 560
Core Specs
Shading Units
384
1,024
+166.7%
Shaders
384
1,024
+166.7%
TMUs
24
64
+166.7%
ROPs
8
16
+100.0%
Compute Units
6
16
+166.7%
Clocks
Base Clock
925 MHz
1175 MHz
Boost Clock
940 MHz
1275 MHz
Memory Clock
1000 MHz
2 Gbps effective
1750 MHz
7 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
DDR3
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
32.00 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
7.520 GPixel/s
20.40 GPixel/s
Texture Rate
22.56 GTexel/s
81.60 GTexel/s
FP32 (TFLOPS)
721.9 GFLOPS
2.611 TFLOPS
FP64 (TFLOPS)
45.12 GFLOPS (1:16)
163.2 GFLOPS (1:16)
FP16 (TFLOPS)
721.9 GFLOPS (1:1)
2.611 TFLOPS (1:1)
Power
TDP
—
75 W
TDP (W)
—
75
Suggested PSU
—
250 W
Power Connectors
—
None
Architecture
Architecture
GCN 3.0
GCN 4.0
GPU Name
Topaz
Polaris 21
Generation
Gem System
(R5 M200)
Polaris
(RX 500)
Process Size
28 nm
14 nm
Transistors
1,550 million
3,000 million
Die Size
125 mm²
123 mm²
Foundry
TSMC
GlobalFoundries
Density
12.4M / mm²
24.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.3
OpenCL
2.1
2.1
Shader Model
6.5
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 x8
PCIe 3.0 x8
Other
Launch Price
—
99 USD
Production
End-of-life
End-of-life
Predecessor
Solar System
Arctic Islands
Successor
Polaris Mobile
Vega