NVIDIA GeForce GTX 670 vs AMD Radeon HD 7990

Compare NVIDIA GeForce GTX 670 4 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

$ 1253.25

$ 674.96

$ 578.29 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

621 points

1743 points

180% significantly better overall score

Flux Core frame rate

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

30 FPS

41 FPS

10 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

18 FPS

25 FPS

7 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

18 FPS

35 FPS

17 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

14 FPS

Identical

14 FPS

Free GPU Benchmark

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Specifications

Core Clock Speed

Nominal chip frequency

915 MHz

950 MHz

3% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

980 MHz

1000 MHz

2% 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

384 Bit

49% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

192.3 GB/s

288 GB/s

49% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

170 W

120% significantly lower TDP

375 W

Pixel Rate

Number of pixels that can be rendered per second

27.44 Gigapixels/s

32 Gigapixels/s

16% slightly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

109.8 Gigatexels/s

128 Gigatexels/s

16% slightly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

2.63 TFLOPS

4.10 TFLOPS

55% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

1344

2048

52% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

112

128

14% slightly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

308th 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 670 vs Radeon HD 7990 benchmarks

In our benchmarks, the Radeon HD 7990 beats the GeForce GTX 670 in gaming performance.

The Radeon HD 7990 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 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.

Furthermore, the spec sheet for both these GPUs show that the GeForce GTX 670 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 670 has a significantly lower TDP at 170 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.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon HD 7990 over the GeForce GTX 670.