Home GPU Comparison AMD Radeon R9 M295X Mac Edition vs AMD Radeon HD 7850M

AMD Radeon R9 M295X Mac Edition vs AMD Radeon HD 7850M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X Mac Edition and 2GB VRAM Radeon HD 7850M 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 2 years and 7 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (174.3GB/s vs 64.00GB/s)
1408 additional rendering cores
AMD Radeon HD 7850M 's Advantages
Lower TDP (40W vs 250W)

Score

Benchmark

FP32 (float)
Radeon R9 M295X Mac Edition +303%
3.482 TFLOPS
Radeon HD 7850M
0.864 TFLOPS
VS

Graphics Card

Nov 2014
Release Date
Apr 2012
Crystal System
Generation
London
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
-
-
Boost Clock
-
1362 MHz
Memory Clock
1000 MHz

Memory

4GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
174.3GB/s
Bandwidth
64.00GB/s

Render Config

-
SM Count
-
32
Compute Units
10
2048
Shading Units
640
128
TMUs
40
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB

Theoretical Performance

27.20 GPixel/s
Pixel Rate
10.80 GPixel/s
108.8 GTexel/s
Texture Rate
27.00 GTexel/s
3.482 TFLOPS
FP16 (half)
-
3.482 TFLOPS
FP32 (float)
864.0 GFLOPS
217.6 GFLOPS
FP64 (double)
54.00 GFLOPS

Graphics Processor

Amethyst
GPU Name
Heathrow
Amethyst XT
GPU Variant
Heathrow PRO
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
1.5 billion
366 mm²
Die Size
123 mm²

Board Design

250W
TDP
40W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-

Graphics Features

12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
6.3
Shader Model
5.1

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