AMD Radeon HD 7990 vs AMD Radeon RX 6500M

Compare AMD Radeon HD 7990 3 GB vs AMD Radeon RX 6500M 4 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

1743 points

1956 points

12% slightly better overall score

Flux Core frame rate

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

41 FPS

59 FPS

19 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

25 FPS

40 FPS

15 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

35 FPS

51 FPS

15 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

14 FPS

23 FPS

9 FPS significantly higher Clouds frame rate

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Specifications

Core Clock Speed

Nominal chip frequency

950 MHz

2000 MHz

110% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1000 MHz

2400 MHz

139% significantly higher boost clock speed

Memory

Onboard memory size for textures and vertices

3 GiB

4 GiB

33% slightly more memory

Memory Bus Width

Number of parallel lines to the memory chips

384 Bit

499% significantly larger memory bus width

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

288 GB/s

125% significantly higher memory bandwidth

128 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

375 W

50 W

650% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

32 Gigapixels/s

76.8 Gigapixels/s

139% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

128 Gigatexels/s

155.7 Gigatexels/s

21% slightly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

4.10 TFLOPS

4.98 TFLOPS

21% slightly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2048

100% significantly more shading units

1024

Texture Mapping Units

Number of processors dedicated to applying textures

128

100% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

223rd of 586

212th of 586

Family

The product line

Radeon HD 7000 Series

Radeon RX 6000 Series

Release date

The official date of release of this chip

2022 January

Memory Type

The type of memory used by this chip

GDDR5

GDDR6

DirectX Support

Maximum version of DirectX supported

11.2

12.0

OpenGL Support

Maximum version of OpenGL supported

4.4

4.6

Radeon HD 7990 vs Radeon RX 6500M specs and performance

For gaming, the Radeon HD 7990 graphics card is better than the Radeon RX 6500M in our tests.

Our database shows that the Radeon RX 6500M has a significantly 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 RX 6500M also has a significantly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 6500M 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 Radeon RX 6500M has a significantly lower TDP at 50 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.

According to the results of the hardwareDB benchmark utility, the Radeon HD 7990 is faster than the Radeon RX 6500M.