AMD Radeon R9 M295X vs NVIDIA GeForce GT 820M
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X and 1024MB VRAM GeForce GT 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M295X 's Advantages
Released 1 years late
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 14.40GB/s)
1952 additional rendering cores
NVIDIA GeForce GT 820M 's Advantages
Lower TDP (15W vs 250W)
Score
Benchmark
FP32 (float)
Radeon R9 M295X
+893%
2.961 TFLOPS
GeForce GT 820M
0.298 TFLOPS
Graphics Card
Nov 2014
Release Date
Nov 2013
Crystal System
Generation
GeForce 800M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
900 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
160.0GB/s
Bandwidth
14.40GB/s
Render Config
32
Compute Units
-
-
SM Count
2
2048
Shading Units
96
128
TMUs
16
32
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
23.14 GPixel/s
Pixel Rate
3.100 GPixel/s
92.54 GTexel/s
Texture Rate
12.40 GTexel/s
2.961 TFLOPS
FP16 (half)
-
2.961 TFLOPS
FP32 (float)
297.6 GFLOPS
185.1 GFLOPS
FP64 (double)
24.80 GFLOPS
Board Design
250W
TDP
15W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
Amethyst
GPU Name
GF117
Amethyst XT
GPU Variant
N15V-GM
GCN 3.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
0.585 billion
366 mm²
Die Size
116 mm²
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
6.3
Shader Model
5.1
