AMD Radeon R9 380 vs NVIDIA GeForce GTX 660

Compare AMD Radeon R9 380 4 GB vs NVIDIA GeForce GTX 660 3 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

1280 points

56% significantly better overall score

816 points

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

29 FPS

11 FPS significantly higher Flux Core frame rate

18 FPS

Electron frame rate

Randomly generated noise sphere test

19 FPS

8 FPS significantly higher Electron frame rate

11 FPS

City frame rate

Procedurally generated city scene with voxel rendering

26 FPS

14 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

10 FPS

1 FPS slightly higher Clouds frame rate

9 FPS

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

2801 points

112% significantly higher 3DMark Graphics score

1317 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

29877 points

162% significantly higher Geekbench 5 (OpenCL) score

11381 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

33763 points

215% significantly higher Geekbench 5 (Vulkan) score

10693 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

28196 points

148% significantly higher Geekbench 6 (OpenCL) score

11353 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

33667 points

183% significantly higher Geekbench 6 (Vulkan) score

11858 points

Specifications

Core Clock Speed

Nominal chip frequency

970 MHz

980 MHz

1% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

970 MHz

1032 MHz

6% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

4 GiB

33% slightly more memory

3 GiB

Memory Bus Width

Number of parallel lines to the memory chips

256 Bit

33% slightly larger memory bus width

192 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

4 GB/s

144.2 GB/s

3505% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

190 W

140 W

35% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

31.04 Gigapixels/s

50% significantly higher pixel rate

20.64 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

108.6 Gigatexels/s

31% slightly higher texture rate

82.56 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

3.48 TFLOPS

75% significantly better floating point performance

1.98 TFLOPS

Shading Units

Number of processors dedicated to shader processing

1792

86% significantly more shading units

960

Texture Mapping Units

Number of processors dedicated to applying textures

112

40% slightly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

33% slightly more render output processors

Other details

Rank

Ranking in the hardwareDB database

244th of 586

276th of 586

Family

The product line

Radeon R9 300 Series

Release date

The official date of release of this chip

2015 June

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.0

OpenGL Support

Maximum version of OpenGL supported

4.6

4.5

Radeon R9 380 vs GeForce GTX 660 benchmarks

In our benchmarks, the Radeon R9 380 beats the GeForce GTX 660 in gaming performance.

The GeForce GTX 660 has a slightly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation. In addition, the GeForce GTX 660 also has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

As stated by the manufacturer, the Radeon R9 380 has slightly more memory with 4 GiB of memory compared to 3 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the GeForce GTX 660 has a slightly lower TDP at 140 W when compared to the Radeon R9 380 at 190 W. TDP (Thermal Design Power) measures total heat output from the chip.

In terms of raw gaming performance in our GPU benchmark, the Radeon R9 380 is better than the GeForce GTX 660.