Home GPU Comparison AMD Radeon RX 6850M XT vs NVIDIA GeForce GTX 660M

AMD Radeon RX 6850M XT vs NVIDIA GeForce GTX 660M

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6850M XT and 1024MB VRAM GeForce GTX 660M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6850M XT 's Advantages
Released 9 years and 10 months late
Boost Clock has increased by 172% (2581MHz vs 950MHz)
More VRAM (12GB vs 1024GB)
Larger VRAM bandwidth (384.0GB/s vs 64.00GB/s)
2176 additional rendering cores
NVIDIA GeForce GTX 660M 's Advantages
Lower TDP (50W vs 165W)

Score

Benchmark

FP32 (float)
Radeon RX 6850M XT +1709%
13.21 TFLOPS
GeForce GTX 660M
0.73 TFLOPS
VS

Graphics Card

Jan 2022
Release Date
Mar 2012
Mobility Radeon
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
MXM-B (3.0)

Clock Speeds

2321 MHz
Base Clock
835 MHz
2581 MHz
Boost Clock
950 MHz
2000 MHz
Memory Clock
1000 MHz

Memory

12GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR5
192bit
Memory Bus
128bit
384.0GB/s
Bandwidth
64.00GB/s

Render Config

40
Compute Units
-
-
-
-
2560
Shading Units
384
160
TMUs
32
64
ROPs
16
-
-
-
40
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per SMX)
3 MB
L2 Cache
256 KB
96 MB
L3 Cache
-

Theoretical Performance

165.2 GPixel/s
Pixel Rate
7.600 GPixel/s
413.0 GTexel/s
Texture Rate
30.40 GTexel/s
26.43 TFLOPS
FP16 (half)
-
13.21 TFLOPS
FP32 (float)
729.6 GFLOPS
825.9 GFLOPS
FP64 (double)
30.40 GFLOPS

Board Design

165W
TDP
50W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Processor

Navi 22
GPU Name
GK107
Navi 22 XTM
GPU Variant
N13E-GE-A2
RDNA 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
17.2 billion
Transistors
1.27 billion
335 mm²
Die Size
118 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.3
Vulkan
1.1
-
CUDA
3.0
6.5
Shader Model
5.1

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