NVIDIA GeForce GTX 780 Ti vs AMD Radeon HD 7990

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

Benchmark Score
Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

2374 points

36% slightly better overall score

1743 points

Flux Core frame rate

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

51 FPS

10 FPS slightly higher Flux Core frame rate

41 FPS

Electron frame rate

Randomly generated noise sphere test

34 FPS

9 FPS significantly higher Electron frame rate

25 FPS

City frame rate

Procedurally generated city scene with voxel rendering

35 FPS

0 FPS slightly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

27 FPS

14 FPS significantly higher Clouds frame rate

14 FPS

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Specifications

Core Clock Speed

Nominal chip frequency

875 MHz

950 MHz

8% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

928 MHz

1000 MHz

7% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

3 GiB

Identical

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

336.6 GB/s

16% 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

55.68 Gigapixels/s

73% significantly higher pixel rate

32 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

222.7 Gigatexels/s

73% significantly higher texture rate

128 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

5.34 TFLOPS

30% slightly better floating point performance

4.10 TFLOPS

Shading Units

Number of processors dedicated to shader processing

2880

40% slightly more shading units

2048

Texture Mapping Units

Number of processors dedicated to applying textures

240

87% 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

186th of 586

223rd of 586

Family

The product line

Radeon HD 7000 Series

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 Ti vs Radeon HD 7990 benchmarks

In our benchmarks, the GeForce GTX 780 Ti beats the Radeon HD 7990 in gaming performance.

Our database shows that 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 maximum frequency the chip can reach if power delivery and thermals allow.

As stated by the manufacturer, they both have the same amount of memory at 3 GiB. If you're planning at playing games at high resolutions with high-quality textures, you will need a lot of memory.

In addition, the GeForce GTX 780 Ti has a significantly lower TDP at 250 W when compared to the Radeon HD 7990 at 375 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the GeForce GTX 780 Ti over the Radeon HD 7990.