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
GEFORCE
GeForce GT 740M
CORE STATE
GK208
VRAM
2 GB
CLOCK SPEED
1033 MHz
TDP
33 W
BUS WIDTH
64 bit
ARCHITECTURE
Kepler 2.0
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
R5 M255
GT 740M
Core Specs
Shading Units
384
384
0.0%
Shaders
384
384
0.0%
TMUs
24
32
+33.3%
ROPs
8
8
0.0%
Compute Units
6
—
Clocks
Base Clock
925 MHz
980 MHz
Boost Clock
940 MHz
1033 MHz
Memory Clock
1000 MHz
2 Gbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
DDR3
DDR3
Memory Bus
128 bit
64 bit
Bandwidth
32.00 GB/s
14.40 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
256 KB
512 KB
Performance
Pixel Rate
7.520 GPixel/s
8.264 GPixel/s
Texture Rate
22.56 GTexel/s
33.06 GTexel/s
FP32 (TFLOPS)
721.9 GFLOPS
793.3 GFLOPS
FP64 (TFLOPS)
45.12 GFLOPS (1:16)
33.06 GFLOPS (1:24)
FP16 (TFLOPS)
721.9 GFLOPS (1:1)
—
Power
TDP
—
33 W
TDP (W)
—
33
Power Connectors
—
None
Architecture
Architecture
GCN 3.0
Kepler 2.0
GPU Name
Topaz
GK208
Generation
Gem System
(R5 M200)
GeForce 700M
Process Size
28 nm
28 nm
Transistors
1,550 million
1,020 million
Die Size
125 mm²
87 mm²
Foundry
TSMC
TSMC
Density
12.4M / mm²
11.7M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.5
Shader Model
6.5
6.5 (5.1)
Physical
Slot Width
—
MXM Module
Outputs
—
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Solar System
GeForce 600M
Successor
Polaris Mobile
GeForce 800M