Home GPU Comparison AMD Radeon HD 8950M vs NVIDIA GeForce GT 420M

AMD Radeon HD 8950M vs NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8950M and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8950M 's Advantages
Released 2 years and 8 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (88.00GB/s vs 25.60GB/s)
672 additional rendering cores
NVIDIA GeForce GT 420M 's Advantages
Lower TDP (23W vs 100W)

Score

Benchmark

FP32 (float)
Radeon HD 8950M +759%
1.651 TFLOPS
GeForce GT 420M
0.192 TFLOPS
VS

Graphics Card

May 2013
Release Date
Sep 2010
Solar System
Generation
GeForce 400M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1375 MHz
Memory Clock
800 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
128bit
88.00GB/s
Bandwidth
25.60GB/s

Render Config

12
Compute Units
-
-
SM Count
2
768
Shading Units
96
48
TMUs
16
16
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

17.20 GPixel/s
Pixel Rate
2.000 GPixel/s
51.60 GTexel/s
Texture Rate
8.000 GTexel/s
-
-
-
1.651 TFLOPS
FP32 (float)
192.0 GFLOPS
103.2 GFLOPS
FP64 (double)
16.00 GFLOPS

Board Design

100W
TDP
23W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

Saturn
GPU Name
GF108
Saturn XT
GPU Variant
N11P-GE-A1
GCN 2.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
2.08 billion
Transistors
0.585 billion
160 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

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