Radeon RX 6950 XT vs GeForce GTX 660

#ad 
Buy on Amazon
VS

Aggregate performance score

We've compared GeForce GTX 660 and Radeon RX 6950 XT, covering specs and all relevant benchmarks.

GTX 660
2012
2 GB GDDR5, 140 Watt
10.04

RX 6950 XT outperforms GTX 660 by a whopping 601% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking44017
Place by popularity81not in top-100
Cost-effectiveness evaluation3.3227.23
Power efficiency5.1315.05
ArchitectureKepler (2012−2018)RDNA 2.0 (2020−2024)
GPU code nameGK106Navi 21
Market segmentDesktopDesktop
Release date6 September 2012 (12 years ago)10 May 2022 (2 years ago)
Launch price (MSRP)$229 $1,099

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6950 XT has 720% better value for money than GTX 660.

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores9605120
Core clock speed980 MHz1925 MHz
Boost clock speed1033 MHz2324 MHz
Number of transistors2,540 million26,800 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)140 Watt335 Watt
Texture fill rate82.56743.7
Floating-point processing power1.981 TFLOPS23.8 TFLOPS
ROPs24128
TMUs80320
Ray Tracing Coresno data80

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus supportPCI Express 3.0no data
InterfacePCIe 3.0 x16PCIe 4.0 x16
Length241 mm267 mm
Height4.376" (11.1 cm)no data
Width2-slot3-slot
Supplementary power connectors1x 6-pin2x 8-pin
SLI options+-

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5GDDR6
Maximum RAM amount2 GB16 GB
Memory bus width192-bit GDDR5256 Bit
Memory clock speed6.0 GB/s2250 MHz
Memory bandwidth144.2 GB/s576.0 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsOne Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort1x HDMI 2.1, 2x DisplayPort 1.4a
Multi monitor support4 displaysno data
HDMI++
HDCP+-
Maximum VGA resolution2048x1536no data
Audio input for HDMIInternalno data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Blu-Ray+-
3D Gaming+-
3D Vision+-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (11_0)12 Ultimate (12_2)
Shader Model5.16.5
OpenGL4.34.6
OpenCL1.22.1
Vulkan1.1.1261.3
CUDA+-

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GTX 660 10.04
RX 6950 XT 70.43
+601%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

GTX 660 4012
RX 6950 XT 28144
+601%

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

GTX 660 5040
RX 6950 XT 59882
+1088%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD47
−370%
221
+370%
1440p18−20
−644%
134
+644%
4K12−14
−608%
85
+608%

Cost per frame, $

1080p4.87
+2.1%
4.97
−2.1%
1440p12.72
−55.1%
8.20
+55.1%
4K19.08
−47.6%
12.93
+47.6%
  • GTX 660 and RX 6950 XT have nearly equal cost per frame in 1080p
  • RX 6950 XT has 55% lower cost per frame in 1440p
  • RX 6950 XT has 48% lower cost per frame in 4K

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2 204
+0%
204
+0%
Cyberpunk 2077 161
+0%
161
+0%

Full HD
Medium Preset

Battlefield 5 110−120
+0%
110−120
+0%
Counter-Strike 2 198
+0%
198
+0%
Cyberpunk 2077 71
+0%
71
+0%
Forza Horizon 4 500
+0%
500
+0%
Forza Horizon 5 146
+0%
146
+0%
Metro Exodus 152
+0%
152
+0%
Red Dead Redemption 2 130−140
+0%
130−140
+0%
Valorant 350−400
+0%
350−400
+0%

Full HD
High Preset

Battlefield 5 110−120
+0%
110−120
+0%
Counter-Strike 2 168
+0%
168
+0%
Cyberpunk 2077 64
+0%
64
+0%
Dota 2 181
+0%
181
+0%
Far Cry 5 99
+0%
99
+0%
Fortnite 290−300
+0%
290−300
+0%
Forza Horizon 4 442
+0%
442
+0%
Forza Horizon 5 190−200
+0%
190−200
+0%
Grand Theft Auto V 172
+0%
172
+0%
Metro Exodus 146
+0%
146
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 210−220
+0%
210−220
+0%
Red Dead Redemption 2 130−140
+0%
130−140
+0%
The Witcher 3: Wild Hunt 170−180
+0%
170−180
+0%
Valorant 350−400
+0%
350−400
+0%
World of Tanks 270−280
+0%
270−280
+0%

Full HD
Ultra Preset

Battlefield 5 110−120
+0%
110−120
+0%
Counter-Strike 2 153
+0%
153
+0%
Cyberpunk 2077 61
+0%
61
+0%
Dota 2 167
+0%
167
+0%
Far Cry 5 130−140
+0%
130−140
+0%
Forza Horizon 4 396
+0%
396
+0%
Forza Horizon 5 138
+0%
138
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 210−220
+0%
210−220
+0%
Valorant 350−400
+0%
350−400
+0%

1440p
High Preset

Counter-Strike 2 30−35
+0%
30−35
+0%
Dota 2 153
+0%
153
+0%
Grand Theft Auto V 153
+0%
153
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 170−180
+0%
170−180
+0%
Red Dead Redemption 2 90−95
+0%
90−95
+0%
World of Tanks 500−550
+0%
500−550
+0%

1440p
Ultra Preset

Battlefield 5 85−90
+0%
85−90
+0%
Cyberpunk 2077 47
+0%
47
+0%
Far Cry 5 160−170
+0%
160−170
+0%
Forza Horizon 4 294
+0%
294
+0%
Forza Horizon 5 140−150
+0%
140−150
+0%
Metro Exodus 132
+0%
132
+0%
The Witcher 3: Wild Hunt 160−170
+0%
160−170
+0%
Valorant 300−350
+0%
300−350
+0%

4K
High Preset

Counter-Strike 2 45−50
+0%
45−50
+0%
Dota 2 174
+0%
174
+0%
Grand Theft Auto V 174
+0%
174
+0%
Metro Exodus 77
+0%
77
+0%
PLAYERUNKNOWN'S BATTLEGROUNDS 200−210
+0%
200−210
+0%
Red Dead Redemption 2 60−65
+0%
60−65
+0%
The Witcher 3: Wild Hunt 174
+0%
174
+0%

4K
Ultra Preset

Battlefield 5 90−95
+0%
90−95
+0%
Counter-Strike 2 20
+0%
20
+0%
Cyberpunk 2077 23
+0%
23
+0%
Dota 2 141
+0%
141
+0%
Far Cry 5 100−110
+0%
100−110
+0%
Fortnite 95−100
+0%
95−100
+0%
Forza Horizon 4 172
+0%
172
+0%
Forza Horizon 5 90−95
+0%
90−95
+0%
Valorant 190−200
+0%
190−200
+0%

This is how GTX 660 and RX 6950 XT compete in popular games:

  • RX 6950 XT is 370% faster in 1080p
  • RX 6950 XT is 644% faster in 1440p
  • RX 6950 XT is 608% faster in 4K

All in all, in popular games:

  • there's a draw in 64 tests (100%)

Pros & cons summary


Performance score 10.04 70.43
Recency 6 September 2012 10 May 2022
Maximum RAM amount 2 GB 16 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 140 Watt 335 Watt

GTX 660 has 139.3% lower power consumption.

RX 6950 XT, on the other hand, has a 601.5% higher aggregate performance score, an age advantage of 9 years, a 700% higher maximum VRAM amount, and a 300% more advanced lithography process.

The Radeon RX 6950 XT is our recommended choice as it beats the GeForce GTX 660 in performance tests.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA GeForce GTX 660
GeForce GTX 660
AMD Radeon RX 6950 XT
Radeon RX 6950 XT

Other comparisons

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.7 4371 vote

Rate GeForce GTX 660 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.6 2765 votes

Rate Radeon RX 6950 XT on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.