NVIDIA GeForce GTX 660
VS
AMD Radeon HD 7950
NVIDIA GeForce GTX 660
VS
AMD Radeon HD 7950

General info

The general info section in the graphics cards comparison list contains information about the date of release, type, overall rating and other useful data for identifying winner between NVIDIA GeForce GTX 660  vs  AMD Radeon HD 7950.

299
Place in performance rating
264
36.19
Value for money (0-100)
13.94
Kepler
Architecture
GCN 1.0
GK106
Code name
Tahiti
Desktop
Type
Desktop
6 September 2012 (9 years ago)
Release date
31 January 2012 (9 years ago)
$229
Launch price (MSRP)
$449
$321 (1.4x MSRP)
Price now
$591 (1.3x MSRP)
no data
Design
reference
4.45
Value for money
3.46
GK106
GPU code name
Tahiti
Desktop
Market segment
Desktop

Technical specs

Which GPU is better between NVIDIA GeForce GTX 660  vs  AMD Radeon HD 7950 in the fabrication process, power consumption, and also base and turbo frequency of the GPU is the most important part containing in the graphics cards hierarchy.

960
Pipelines
1792
980 MHz
Core clock speed
no data
1033 MHz
Boost Clock
1250 MHz
2,540 million
Transistor count
4,313 million
28 nm
Manufacturing process technology
28 nm
140 Watt
Power consumption (TDP)
200 Watt
78.4 billion/sec
Texture fill rate
89.60
1,981 gflops
Floating-point performance
2,867 gflops
960
CUDA cores
no data
no data
Compute units
28
960
Pipelines / CUDA cores
1792
1033 MHz
Boost clock speed
1250 MHz
2,540 million
Number of transistors
4,313 million
140 Watt
Thermal design power (TDP)
300 Watt

Compatibility, dimensions and requirements

Let’s discuss how graphics cards NVIDIA GeForce GTX 660 and AMD Radeon HD 7950 come in different sizes (length), connector types and types of interfaces.

PCIe 3.0 x16
Interface
PCIe 3.0 x16
9.5" (24.1 cm)
Length
267 mm
One 6-pin
Supplementary power connectors
2x 6-pin
+
SLI options
no data
PCI Express 3.0
Bus support
PCIe 3.0 x16
4.376" (11.1 cm)
Height
no data

Memory

Graphics cards memory plays important role both in gaming and in applications for graphics. The card will perform much quicker and better, if it has more memory capacity and right memory type. What is the difference between NVIDIA GeForce GTX 660 vs AMD Radeon HD 7950.

GDDR5
Memory type
GDDR5
2 GB
Maximum RAM amount
3 GB
192-bit GDDR5
Memory bus width
384 Bit
6.0 GB/s
Memory clock speed
1250 MHz
144.2 GB/s
Memory bandwidth
240 GB/s

Video outputs and ports

Let’s find out the difference in extra ports between two graphics cards. What's the difference between NVIDIA GeForce GTX 660 vs AMD Radeon HD 7950.

One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
+
G-SYNC support
no data
4 displays
Multi monitor support
no data
+
HDCP
no data
2048x1536
Maximum VGA resolution
no data
Internal
Audio input for HDMI
no data
no data
Eyefinity
1
no data
Number of Eyefinity displays
6
+
HDMI
+
no data
DisplayPort support
-

Technologies

Let’s have a look what is the difference. It is worthwhile to note that NVIDIA and AMD are using different technologies.

+
3D Vision
no data
+
GPU Boost
no data
+
CUDA
no data
no data
AppAcceleration
+
no data
CrossFire
1
no data
FreeSync
1
no data
HD3D
-
no data
PowerTune
+
no data
TrueAudio
-
no data
ZeroCore
+
no data
Enduro
-
+
3D Gaming
no data
+
FXAA
no data
+
TXAA
no data
+
Adaptive VSync
no data
+
3D Blu-Ray
no data

API support

The confrontation between the two contenders NVIDIA GeForce GTX 660 and AMD Radeon HD 7950 is practically over. The hardware support (API) does not greatly affect the overall performance, it is not considered in synthetic benchmarks and other performance tests. 

12 (11_0)
DirectX
DirectX® 11
4.3
OpenGL
4.6
1.1.126
Vulkan
no data
5.1
Shader Model
5.1
1.2
OpenCL
1.2
no data
Mantle
-

Gaming performance

Select form the list the required name to identify gaming performance for NVIDIA GeForce GTX 660 and AMD Radeon HD 7950 graphics cards. The result shows how fast the game will run and whether it can be run on this computer. The different monitor resolutions – from low to 4K – are used for testing. Find out is the NVIDIA GeForce GTX 660 or AMD Radeon HD 7950 good for gaming.


low
1280x720
med.
1920x1080
high
1920x1080
ultra
1920x1080
QHD
2560x1440
4K
3840x2160
Horizon Zero Dawn (2020) NVIDIA GeForce GTX 660
AMD Radeon HD 7950
Death Stranding (2020) NVIDIA GeForce GTX 660
AMD Radeon HD 7950
F1 2020 (2020) NVIDIA GeForce GTX 660
AMD Radeon HD 7950
Gears Tactics (2020) NVIDIA GeForce GTX 660
AMD Radeon HD 7950
Doom Eternal (2020) NVIDIA GeForce GTX 660
AMD Radeon HD 7950
Legend
5 Stutters – This game is very likely to stutter and have poor frame rates. Based on all known benchmarks using the specified graphical settings, average frame rates are expected to fall below 25fps
May Stutter – This graphics card has not been explicitly tested on this game. Based on interpolated information from surrounding graphics cards of similar performance levels, stutters and poor frame rates are expected.
30 Fluent – Based on all known benchmarks using the specified graphical settings, this game should run at or above 25fps
40 Fluent – Based on all known benchmarks using the specified graphical settings, this game should run at or above 35fps
60 Fluent – Based on all known benchmarks using the specified graphical settings, this game should run at or above 58fps
May Run Fluently – This graphics card has not been explicitly tested on this game. Based on interpolated information from surrounding graphics cards of similar performance levels, fluent frame rates are expected.
? Uncertain – This graphics card experienced unexpected performance issues during testing for this game. A slower card may be able to achieve better and more consistent frame rates than this particular GPU running the same benchmark scene.
Uncertain – This graphics card has not been explicitly tested on this game and no reliable interpolation can be made based on the performances of surrounding cards of the same class or family.
The value in the fields displays the average frame rate of all values in the database. Move your cursor over the value to see individual results.

Advantages of NVIDIA GeForce GTX 660

Cheaper ($321 (1.4x MSRP) vs $591 (1.3x MSRP))

Less power consumption (140 Watt vs 200 Watt)

G-SYNC support

Advantages of AMD Radeon HD 7950

3.75% faster in synthetic tests

More pipelines (1792 vs 960)

More maximum RAM amount (3 GB vs 2 GB)

More memory bandwidth (240 GB/s vs 144.2 GB/s)

So, NVIDIA GeForce GTX 660 or AMD Radeon HD 7950?

Judging by the results of synthetic and gaming tests, we recommend AMD Radeon HD 7950 .

NVIDIA GeForce GTX 660 versus AMD Radeon HD 7950 performance benchmarks comparison

Overall benchmark performance

Unigine Heaven 4.0

Benchmark Unigine Heaven 4.0: Graphic cards performance test result. Check Unigine Heaven 4.0 test results of GPUs on hitesti.com

3DMark Fire Strike Graphics

Benchmark 3DMark Fire Strike Graphics: Graphic cards performance test result. Check 3DMark Fire Strike Graphics test results of GPUs on hitesti.com

Octane Render OctaneBench

Benchmark Octane Render OctaneBench: Graphic cards performance test result. Check Octane Render OctaneBench test results of GPUs on hitesti.com

Passmark

Benchmark Passmark: Graphic cards performance test result. Check Passmark test results of GPUs on hitesti.com

User rating

3.8 Out of 271 Hitesti Score
4.3 Out of 40 Hitesti Score