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 R9 370X
CORE STATE
Trinidad
VRAM
2 GB
CLOCK SPEED
1030 MHz
TDP
180 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
R5 M255
R9 370X
Core Specs
Shading Units
384
1,280
+233.3%
Shaders
384
1,280
+233.3%
TMUs
24
80
+233.3%
ROPs
8
32
+300.0%
Compute Units
6
24
+300.0%
Clocks
Base Clock
925 MHz
980 MHz
Boost Clock
940 MHz
1030 MHz
Memory Clock
1000 MHz
2 Gbps effective
1400 MHz
5.6 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
DDR3
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
32.00 GB/s
179.2 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
512 KB
Performance
Pixel Rate
7.520 GPixel/s
32.96 GPixel/s
Texture Rate
22.56 GTexel/s
82.40 GTexel/s
FP32 (TFLOPS)
721.9 GFLOPS
2.637 TFLOPS
FP64 (TFLOPS)
45.12 GFLOPS (1:16)
164.8 GFLOPS (1:16)
FP16 (TFLOPS)
721.9 GFLOPS (1:1)
—
Power
TDP
—
180 W
TDP (W)
—
180
Suggested PSU
—
450 W
Power Connectors
—
2x 6-pin
Architecture
Architecture
GCN 3.0
GCN 1.0
GPU Name
Topaz
Trinidad
Generation
Gem System
(R5 M200)
Pirate Islands
(R9 300)
Process Size
28 nm
28 nm
Transistors
1,550 million
2,800 million
Die Size
125 mm²
212 mm²
Foundry
TSMC
TSMC
Density
12.4M / mm²
13.2M / mm²
API Support
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1
2.1 (1.2)
Shader Model
6.5
6.5 (5.1)
Physical
Slot Width
—
Dual-slot
Length
—
221 mm
8.7 inches
Height
—
111 mm
4.4 inches
Outputs
—
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Launch Price
—
199 USD
Production
End-of-life
End-of-life
Predecessor
Solar System
Volcanic Islands
Successor
Polaris Mobile
Arctic Islands