NVIDIA GeForce GTX 780 vs AMD Radeon HD 7990

Compare NVIDIA GeForce GTX 780 6 GB vs AMD Radeon HD 7990 3 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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AMD Radeon HD 7990

Price

The cheapest price from our partner retailers

$ 408.96

$ 266.00 significantly less expensive

$ 674.96

Benchmark Score

Overall Score

General gaming and workstation score

1799 points

3% slightly better overall score

1743 points

Flux Core frame rate

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

37 FPS

41 FPS

4 FPS slightly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

26 FPS

0 FPS slightly higher Electron frame rate

25 FPS

City frame rate

Procedurally generated city scene with voxel rendering

26 FPS

35 FPS

9 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

22 FPS

8 FPS significantly higher Clouds frame rate

14 FPS

Free GPU Benchmark

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Specifications

Core Clock Speed

Nominal chip frequency

863 MHz

950 MHz

10% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

902 MHz

1000 MHz

10% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

6 GiB

100% significantly more memory

3 GiB

Memory Bus Width

Number of parallel lines to the memory chips

384 Bit

Identical

384 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

288.4 GB/s

0.14% slightly higher memory bandwidth

288 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

250 W

49% significantly lower TDP

375 W

Pixel Rate

Number of pixels that can be rendered per second

43.3 Gigapixels/s

35% slightly higher pixel rate

32 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

173.2 Gigatexels/s

35% slightly higher texture rate

128 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

4.16 TFLOPS

1% slightly better floating point performance

4.10 TFLOPS

Shading Units

Number of processors dedicated to shader processing

2304

12% slightly more shading units

2048

Texture Mapping Units

Number of processors dedicated to applying textures

192

49% significantly more texture mapping units

128

Render Output Processors

Number of processors dedicated to final pixel rendering

49% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

221st of 586

223rd of 586

Family

The product line

Radeon HD 7000 Series

Release date

The official date of release of this chip

2013 May

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

11.0

11.2

OpenGL Support

Maximum version of OpenGL supported

4.5

4.4

GeForce GTX 780 vs Radeon HD 7990 comparison

According to the hardwareDB Benchmark, the GeForce GTX 780 GPU is faster than the Radeon HD 7990 in gaming.

In our comparison, the Radeon HD 7990 has a slightly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the Radeon HD 7990 also has a slightly higher boost clock speed. The boost clock speed is the frequency that the GPU core can reach if the temperature is low enough. The allows for higher performance in certain scenarios.

As stated by the manufacturer, the GeForce GTX 780 has significantly more memory with 6 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 780 has a significantly lower TDP at 250 W when compared to the Radeon HD 7990 at 375 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

According to the results of the hardwareDB benchmark utility, the GeForce GTX 780 is faster than the Radeon HD 7990.