GPU Comparison
RADEON
AMD Radeon R9 M290X
CORE STATE
Neptune
VRAM
4 GB
CLOCK SPEED
900 MHz
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
VS
RADEON
Radeon R9 M375
CORE STATE
Tropo
VRAM
2 GB
CLOCK SPEED
1015 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
R9 M290X
R9 M375
Core Specs
Shading Units
1,280
640
-50.0%
Shaders
1,280
640
-50.0%
TMUs
80
40
-50.0%
ROPs
32
16
-50.0%
Compute Units
20
10
-50.0%
Clocks
Base Clock
850 MHz
1000 MHz
Boost Clock
900 MHz
1015 MHz
Memory Clock
1200 MHz
4.8 Gbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
DDR3
Memory Bus
256 bit
128 bit
Bandwidth
153.6 GB/s
28.80 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
28.80 GPixel/s
16.24 GPixel/s
Texture Rate
72.00 GTexel/s
40.60 GTexel/s
FP32 (TFLOPS)
2.304 TFLOPS
1,299.2 GFLOPS
FP64 (TFLOPS)
144.0 GFLOPS (1:16)
81.20 GFLOPS (1:16)
Power
TDP
100 W
—
TDP (W)
100
—
Power Connectors
None
—
Architecture
Architecture
GCN 1.0
GCN 1.0
GPU Name
Neptune
Tropo
Generation
Gem System
(R9 M200)
Gem System
(R9 M300)
Process Size
28 nm
28 nm
Transistors
2,800 million
1,500 million
Die Size
212 mm²
123 mm²
Foundry
TSMC
TSMC
Density
13.2M / mm²
12.2M / mm²
API Support
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1 (1.2)
2.1 (1.2)
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
MXM Module
—
Outputs
Portable Device Dependent
—
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Solar System
Solar System
Successor
Polaris Mobile
Polaris Mobile