The Radeon HD 7990 is at least 2x slower gaming GPU than the Radeon RX 6600 XT. We cannot compare value as at least one GPU is out of stock.
Advantages of the Radeon HD 7990
The Radeon RX 6600 XT is better in every way
Advantages of the Radeon RX 6600 XT
- At least 2x faster GPU for gaming
- Consumes up to 57% less energy – 160 vs 375 Watts
- Up to 167% more VRAM memory – 8 vs 3 GB
Radeon HD 7990 vs Radeon RX 6600 XT for Gaming
The GPU's performance in selected game and settings
Radeon HD 7990
Apr 24th, 2013
Average FPS
55
52%
Min 1% FPS
25
42%
Price, $
Out of Stock
Value, $/FPS
Not Available
All items are out of stock.
Radeon RX 6600 XT
Jul 30th, 2021
Average FPS
105
100%
Min 1% FPS
59
100%
Price, $
$359.69
100%
Value, $/FPS
$3.42/FPS
100%
Buy on Amazon
$359.69
In Stock
Buy on Amazon
$574.54
In Stock
Buy on Amazon
N/A
Out of Stock
Buy on Amazon
N/A
Out of Stock
Radeon HD 7990 vs Radeon RX 6600 XT in My Games
The FPS you'll get in saved games, click on a game to change it
The FPS you'll get in saved games, click on a game to change it
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Synthetic Benchmarks
The Radeon HD 7990 vs Radeon RX 6600 XT in synthetic GPU benchmarks
Performance Specifications
The Radeon HD 7990 vs Radeon RX 6600 XT in core GPU performance specifications
Radeon HD 7990
Apr 24th, 2013
Memory
3 GB
38%
Memory Bandwidth
288 GB/s
100%
Pixel Fillrate
32 GPixel/s
19%
Texture Fillrate
128 GTexel/s
39%
FP32
4.096 TFLOPS
39%
Radeon RX 6600 XT
Jul 30th, 2021
Memory
8 GB
100%
Memory Bandwidth
256 GB/s
89%
Pixel Fillrate
165.7 GPixel/s
100%
Texture Fillrate
331.4 GTexel/s
100%
FP32
10.6 TFLOPS
100%
Specifications
Comparison of all specifications
Radeon HD 7990 | SpecificationsComparison of all specifications | Radeon RX 6600 XT |
|---|---|---|
| General | ||
| Apr 24th, 2013 | Release Date | Jul 30th, 2021 |
| $999.00 | MSRP | $379.00 |
| Southern Islands | Generation | Navi II |
Desktop | Segment | Desktop |
| 375 W | Power Consumption | 160 W |
| Memory | ||
| 3 GB | Memory Size | 8 GB |
| GDDR5 | Memory Type | GDDR6 |
| 384-bit | Memory Bus | 128-bit |
288 GB/s | Bandwidth | 256 GB/s |
| Theoretical Performance | ||
| 32 GPixel/s | Pixel Fillrate | 165.7 GPixel/s |
| 128 GTexel/s | Texture Fillrate | 331.4 GTexel/s |
| 4.096 TFLOPS | FP32 | 10.6 TFLOPS |
