Home GPU Comparison NVIDIA GeForce 840M vs AMD Radeon R9 M275X

NVIDIA GeForce 840M vs AMD Radeon R9 M275X

NVIDIA GeForce 840M
VS
AMD Radeon R9 M275X
NVIDIA GeForce 840M
AMD Radeon R9 M275X
We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 2GB VRAM Radeon R9 M275X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840M 's Advantages
Boost Clock has increased by 22% (1124MHz vs 925MHz)
AMD Radeon R9 M275X 's Advantages
Larger VRAM bandwidth (72.00GB/s vs 16.02GB/s)
256 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce 840M
0.863 TFLOPS
Radeon R9 M275X +37%
1.184 TFLOPS
GeForce 840M
VS
Radeon R9 M275X

Graphics Card

Mar 2014
Release Date
Jan 2014
GeForce 800M
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

1029 MHz
Base Clock
900 MHz
1124 MHz
Boost Clock
925 MHz
1001 MHz
Memory Clock
1125 MHz

Memory

2GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
128bit
16.02GB/s
Bandwidth
72.00GB/s

Render Config

-
Compute Units
10
-
-
-
384
Shading Units
640
16
TMUs
40
8
ROPs
16
-
-
-
-
-
-
64 KB (per SMM)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

8.992 GPixel/s
Pixel Rate
14.80 GPixel/s
17.98 GTexel/s
Texture Rate
37.00 GTexel/s
-
-
-
863.2 GFLOPS
FP32 (float)
1184 GFLOPS
26.98 GFLOPS
FP64 (double)
74.00 GFLOPS

Board Design

33W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-

Graphics Processor

GM108
GPU Name
Venus
N15S-GT
GPU Variant
Venus XTX (216-0846033)
Maxwell
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
Unknown
Transistors
1.5 billion
Unknown
Die Size
123 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
2.1 (1.2)
1.3
Vulkan
1.2.170
5.0
CUDA
-
5.1
Shader Model
6.5 (5.1)

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