Home GPU Comparison AMD Radeon R9 M295X Mac Edition vs NVIDIA GeForce GTX 850M

AMD Radeon R9 M295X Mac Edition vs NVIDIA GeForce GTX 850M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X Mac Edition and 2GB VRAM GeForce GTX 850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M295X Mac Edition 's Advantages
Released 8 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (174.3GB/s vs 32.03GB/s)
1408 additional rendering cores
NVIDIA GeForce GTX 850M 's Advantages
Lower TDP (45W vs 250W)

Score

Benchmark

FP32 (float)
Radeon R9 M295X Mac Edition +201%
3.482 TFLOPS
GeForce GTX 850M
1.155 TFLOPS
VS

Graphics Card

Nov 2014
Release Date
Mar 2014
Crystal System
Generation
GeForce 800M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
-
-
Boost Clock
-
1362 MHz
Memory Clock
1001 MHz

Memory

4GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
174.3GB/s
Bandwidth
32.03GB/s

Render Config

-
SM Count
-
32
Compute Units
-
2048
Shading Units
640
128
TMUs
40
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
64 KB (per SMM)
512 KB
L2 Cache
2 MB

Theoretical Performance

27.20 GPixel/s
Pixel Rate
14.43 GPixel/s
108.8 GTexel/s
Texture Rate
36.08 GTexel/s
3.482 TFLOPS
FP16 (half)
-
3.482 TFLOPS
FP32 (float)
1155 GFLOPS
217.6 GFLOPS
FP64 (double)
36.08 GFLOPS

Graphics Processor

Amethyst
GPU Name
GM107
Amethyst XT
GPU Variant
N15P-GT-A1
GCN 3.0
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
1.87 billion
366 mm²
Die Size
148 mm²

Board Design

250W
TDP
45W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-

Graphics Features

12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
3.0
1.2
Vulkan
1.3
-
CUDA
5.0
6.3
Shader Model
5.1

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