NVIDIA GeForce GT 820M vs ATI Radeon E4690 MXM
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 512MB VRAM Radeon E4690 MXM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 820M 's Advantages
Released 4 years and 5 months late
More VRAM (1024GB vs 512GB)
Lower TDP (15W vs 30W)
ATI Radeon E4690 MXM 's Advantages
Larger VRAM bandwidth (22.40GB/s vs 14.40GB/s)
224 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 820M
0.298 TFLOPS
Radeon E4690 MXM
+28%
0.384 TFLOPS
Graphics Card
Nov 2013
Release Date
Jun 2009
GeForce 800M
Generation
Embedded
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
MXM-II
Clock Speeds
-
-
-
-
-
-
900 MHz
Memory Clock
700 MHz
Memory
1024MB
Memory Size
512MB
DDR3
Memory Type
GDDR3
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
22.40GB/s
Render Config
-
Compute Units
4
2
SM Count
-
96
Shading Units
320
16
TMUs
32
8
ROPs
8
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
3.100 GPixel/s
Pixel Rate
4.800 GPixel/s
12.40 GTexel/s
Texture Rate
19.20 GTexel/s
-
-
-
297.6 GFLOPS
FP32 (float)
384.0 GFLOPS
24.80 GFLOPS
FP64 (double)
-
Board Design
15W
TDP
30W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GF117
GPU Name
RV730
N15V-GM
GPU Variant
RV730 XT E4690
(215-0729055)
Fermi 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
0.585 billion
Transistors
0.514 billion
116 mm²
Die Size
146 mm²
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
-
5.1
Shader Model
4.1
