NVIDIA GeForce GT 645M vs AMD Radeon R7 A265
We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 645M and 2GB VRAM Radeon R7 A265 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R7 A265 's Advantages
Released 1 years and 3 months late
Boost Clock825MHz
Score
Benchmark
FP32 (float)
GeForce GT 645M
0.544 TFLOPS
Radeon R7 A265
+16%
0.633 TFLOPS
Graphics Card
Oct 2012
Release Date
Jan 2014
GeForce 600M
Generation
All-In-One
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
725 MHz
-
Boost Clock
825 MHz
900 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
DDR3
128bit
Memory Bus
128bit
28.80GB/s
Bandwidth
28.80GB/s
Render Config
-
Compute Units
6
-
-
-
384
Shading Units
384
32
TMUs
24
16
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
5.672 GPixel/s
Pixel Rate
6.600 GPixel/s
22.69 GTexel/s
Texture Rate
19.80 GTexel/s
-
-
-
544.5 GFLOPS
FP32 (float)
633.6 GFLOPS
22.69 GFLOPS
FP64 (double)
39.60 GFLOPS
Board Design
32W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-
Graphics Processor
GK107
GPU Name
Opal
N13P-GS
GPU Variant
Opal XT
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
0.95 billion
118 mm²
Die Size
77 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
2.1 (1.2)
1.1
Vulkan
1.2.170
3.0
CUDA
-
5.1
Shader Model
6.5 (5.1)
