GeForce GTX 660 vs Radeon R9 380X

Place in performance ranking	308	403
Place by popularity	not in top-100	75
Cost-Effectiveness Evaluation	7.08	2.35
Architecture	GCN 3.0 (2014−2017)	Kepler (2012−2018)
GPU code name	Antigua	GK106
Market segment	Desktop	Desktop
Design	reference	no data
Release date	19 November 2015 (8 years ago)	6 September 2012 (11 years ago)
Launch price (MSRP)	$229	$229
Current price	$11.81 (0.1x MSRP)	$172 (0.8x MSRP)

Cost-Effectiveness Evaluation

Performance to price ratio. The higher, the better.

R9 380X has 201% better value for money than GTX 660.

Detailed Specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	2048	960
CUDA cores	no data	960
Compute units	32	no data
Core clock speed	no data	980 MHz
Boost clock speed	970 MHz	1033 MHz
Number of transistors	5,000 million	2,540 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	190 Watt	140 Watt
Texture fill rate	124.2	78.4 billion/sec
Floating-point performance	3,973 gflops	1,981 gflops

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 support	PCIe 3.0	PCI Express 3.0
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Length	221 mm	9.5" (24.1 cm)
Height	no data	4.376" (11.1 cm)
Width	2-slot	2-slot
Form factor	full height / full length	no data
Supplementary power connectors	2 x 6-pin	One 6-pin
SLI options	no data	+
Bridgeless CrossFire	1	no data

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 type	GDDR5	GDDR5
High bandwidth memory (HBM)	-	no data
Maximum RAM amount	4 GB	2 GB
Memory bus width	256 Bit	192-bit GDDR5
Memory clock speed	970 MHz	6.0 GB/s
Memory bandwidth	182.4 GB/s	144.2 GB/s

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

Supported GPU Technologies

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

AppAcceleration	-	no data
CrossFire	1	no data
Enduro	-	no data
FRTC	1	no data
FreeSync	1	no data
HD3D	+	no data
LiquidVR	1	no data
PowerTune	+	no data
TrueAudio	+	no data
ZeroCore	+	no data
VCE	+	no data
DDMA audio	+	no data
3D Blu-Ray	no data	+
3D Gaming	no data	+
3D Vision	no data	+

API Compatibility

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

DirectX	DirectX® 12	12 (11_0)
Shader Model	6.3	5.1
OpenGL	4.5	4.3
OpenCL	2.0	1.2
Vulkan	+	1.1.126
Mantle	+	no data
CUDA	no data	+

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark performance 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.

R9 380X 16.04
+55.3%

GTX 660 10.33

Radeon R9 380X outperforms GeForce GTX 660 by 55% based on our aggregated benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.

Benchmark coverage: 25%

R9 380X 6208
+55.2%

GTX 660 3999

Radeon R9 380X outperforms GeForce GTX 660 by 55% in Passmark.

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.

Benchmark coverage: 14%

R9 380X 9510
+88.7%

GTX 660 5040

Radeon R9 380X outperforms GeForce GTX 660 by 89% in 3DMark Fire Strike Graphics.