GPU Comparison
RADEON
AMD Radeon 540
CORE STATE
Lexa
VRAM
1024 MB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
32 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
VS
GEFORCE
GeForce 840M
CORE STATE
GM108S
VRAM
2 GB
CLOCK SPEED
1124 MHz
TDP
33 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
540
840M
Core Specs
Shading Units
384
384
0.0%
Shaders
384
384
0.0%
TMUs
24
16
-33.3%
ROPs
16
8
-50.0%
Compute Units
6
—
Clocks
Base Clock
—
1029 MHz
Boost Clock
—
1124 MHz
GPU Clock
1183 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1001 MHz
2 Gbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
GDDR5
DDR3
Memory Bus
32 bit
64 bit
Bandwidth
24.00 GB/s
16.02 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
512 KB
1024 KB
Performance
Pixel Rate
18.93 GPixel/s
8.992 GPixel/s
Texture Rate
28.39 GTexel/s
17.98 GTexel/s
FP32 (TFLOPS)
908.5 GFLOPS
863.2 GFLOPS
FP64 (TFLOPS)
56.78 GFLOPS (1:16)
26.98 GFLOPS (1:32)
FP16 (TFLOPS)
908.5 GFLOPS (1:1)
—
Power
TDP
50 W
33 W
TDP (W)
50
33
-34.0%
Suggested PSU
250 W
—
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Maxwell
GPU Name
Lexa
GM108S
Generation
Polaris
(RX 500)
GeForce 800M
Process Size
14 nm
28 nm
Transistors
2,200 million
1,020 million
Die Size
103 mm²
77 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
13.2M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
5.0
Shader Model
6.7
6.7 (5.1)
Physical
Slot Width
Single-slot
IGP
Outputs
2x DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Arctic Islands
GeForce 700M
Successor
Vega
GeForce 900M