GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7990
158%
158%
AMD Radeon HD 7970
71%
71%
AMD Radeon HD 7990 is approximately 87% faster
Technical Specifications
| Specification | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| Graphics ProcessorDifferent | Malta x2 | Tahiti |
| CoresDifferent | 2048 x2 | 2048 |
| TMUsDifferent | 128 x2 | 128 |
| ROPsDifferent | 32 x2 | 32 |
| Memory SizeDifferent | 3 GB x2 | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 384 bit x2 | 384 bit |
Graphics Processor
| Feature | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| GPU NameDifferent | Malta | Tahiti |
| GPU VariantDifferent | Malta XT(215-0849026) | Tahiti XT(215-0821060) |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 4,313 million | 4,313 million |
| DensityDifferent | 11.8M / mm² | 12.3M / mm² |
| Die SizeDifferent | 365 mm² | 352 mm² |
Graphics Card
| Feature | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| Release DateDifferent | Apr 24th, 2013 | Jan 9th, 2012 |
| Generation | Southern Islands(HD 7900) | Southern Islands(HD 7900) |
| Predecessor | Northern Islands | Northern Islands |
| Successor | Sea Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 999 USD | 549 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 37 in our database | 191 in our database |
| AnnouncedDifferent | N/A | Dec 22nd, 2011 |
Clock Speeds
| Feature | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| Base ClockDifferent | 950 MHz | N/A |
| Boost ClockDifferent | 1000 MHz | N/A |
| Memory ClockDifferent | 1500 MHz6 Gbps effective | 1375 MHz5.5 Gbps effective |
| GPU ClockDifferent | N/A | 925 MHz |
Memory
| Feature | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| Memory Size | 3 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384 bit | 384 bit |
| BandwidthDifferent | 288.0 GB/s | 264.0 GB/s |
Render Config
| Feature | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| Shading Units | 2048 | 2048 |
| TMUs | 128 | 128 |
| ROPs | 32 | 32 |
| Compute Units | 32 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 768 KB | 768 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| Pixel RateDifferent | 32.00 GPixel/s | 29.60 GPixel/s |
| Texture RateDifferent | 128.0 GTexel/s | 118.4 GTexel/s |
| FP32 (float)Different | 4.096 TFLOPS | 3.789 TFLOPS |
| FP64 (double)Different | 1,024.0 GFLOPS (1:4) | 947.2 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 304 mm12 inches | 275 mm10.8 inches |
| HeightDifferent | 106 mm4.2 inches | 111 mm4.4 inches |
| Width | 38 mm1.5 inches | 38 mm1.5 inches |
| TDPDifferent | 375 W | 250 W |
| Suggested PSUDifferent | 750 W | 600 W |
| OutputsDifferent | 1x DVI4x mini-DisplayPort 1.2 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 8-pin | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | 109-C47637-00A_02 | 109-C38637-00 |
Graphics Features
| Feature | AMD Radeon HD 7990 | AMD Radeon HD 7970 |
|---|---|---|
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 (1.2) | 2.1 (1.2) |
| VulkanDifferent | 1.2.175 | 1.2.170 |
| Shader Model | 6.5 (5.1) | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
49
Detailed Features
More Comparisons with AMD Radeon HD 7990
Compare AMD Radeon HD 7990 with other GPUs of similar performance
AMD Radeon HD 7990 vs Radeon RX 590
Radeon RX 590 Performance115%
Radeon RX 590 is 15% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon R9 FURY
Radeon R9 FURY Performance112%
Radeon R9 FURY is 12% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 980
GeForce GTX 980 Performance111%
GeForce GTX 980 is 11% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance110%
GeForce GTX 1650 SUPER is 10% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon RX 6500 XT
Radeon RX 6500 XT Performance109%
Radeon RX 6500 XT is 9% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon RX 5500 XT
Radeon RX 5500 XT Performance108%
Radeon RX 5500 XT is 8% faster than AMD Radeon HD 7990
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More Comparisons with AMD Radeon HD 7970
Compare AMD Radeon HD 7970 with other GPUs of similar performance
AMD Radeon HD 7970 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance113%
Radeon HD 7970 GHz Edition is 13% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs GeForce GTX 590
GeForce GTX 590 Performance113%
GeForce GTX 590 is 13% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs Radeon R9 280X
Radeon R9 280X Performance111%
Radeon R9 280X is 11% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs Radeon HD 6990
Radeon HD 6990 Performance109%
Radeon HD 6990 is 9% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs GeForce GTX 1050 Ti
GeForce GTX 1050 Ti Performance103%
GeForce GTX 1050 Ti is 3% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs GeForce GTX 680
GeForce GTX 680 Performance101%
GeForce GTX 680 is 1% faster than AMD Radeon HD 7970
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