Home GPU Comparison AMD Radeon R7 A260 vs NVIDIA GeForce GT 640M LE

AMD Radeon R7 A260 vs NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R7 A260 and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 A260 's Advantages
Released 1 years and 8 months late
Boost Clock980MHz
Larger VRAM bandwidth (57.60GB/s vs 50.24GB/s)
288 additional rendering cores
NVIDIA GeForce GT 640M LE 's Advantages
More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)
Radeon R7 A260 +160%
0.752 TFLOPS
GeForce GT 640M LE
0.289 TFLOPS
VS

Graphics Card

Jan 2014
Release Date
May 2012
All-In-One
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16

Clock Speeds

900 MHz
Base Clock
-
980 MHz
Boost Clock
-
900 MHz
Memory Clock
785 MHz

Memory

1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
57.60GB/s
Bandwidth
50.24GB/s

Render Config

6
Compute Units
-
-
SM Count
2
384
Shading Units
96
24
TMUs
16
8
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

7.840 GPixel/s
Pixel Rate
3.012 GPixel/s
23.52 GTexel/s
Texture Rate
12.05 GTexel/s
-
-
-
752.6 GFLOPS
FP32 (float)
289.0 GFLOPS
-
FP64 (double)
24.08 GFLOPS

Board Design

Unknown
TDP
32W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
-
-

Graphics Processor

Topaz
GPU Name
GF108
Topaz XT (216-0858020)
GPU Variant
-
GCN 3.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.55 billion
Transistors
0.585 billion
125 mm²
Die Size
116 mm²

Graphics Features

12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
1.1
1.2.170
Vulkan
N/A
-
CUDA
2.1
6.5
Shader Model
5.1

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