GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6990
109%
109%
AMD Radeon HD 7970
104%
104%
AMD Radeon HD 6990 is approximately 5% faster
Technical Specifications
| Specification | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| Graphics ProcessorDifferent | Antilles x2 | Tahiti |
| CoresDifferent | 1536 x2 | 2048 |
| TMUsDifferent | 96 x2 | 128 |
| ROPsDifferent | 32 x2 | 32 |
| Memory SizeDifferent | 2 GB x2 | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 384 bit |
Graphics Processor
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| GPU NameDifferent | Antilles | Tahiti |
| GPU VariantDifferent | Antilles XT(215-0807027) | Tahiti XT(215-0821060) |
| ArchitectureDifferent | TeraScale 3 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 2,640 million | 4,313 million |
| DensityDifferent | 6.8M / mm² | 12.3M / mm² |
| Die SizeDifferent | 389 mm² | 352 mm² |
Graphics Card
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| Release DateDifferent | Mar 8th, 2011 | Jan 9th, 2012 |
| GenerationDifferent | Northern Islands(HD 6900) | Southern Islands(HD 7900) |
| PredecessorDifferent | Evergreen | Northern Islands |
| SuccessorDifferent | Southern Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 699 USD | 549 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 47 in our database | 191 in our database |
| AnnouncedDifferent | N/A | Dec 22nd, 2011 |
Clock Speeds
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| GPU ClockDifferent | 830 MHz | 925 MHz |
| Memory ClockDifferent | 1250 MHz5 Gbps effective | 1375 MHz5.5 Gbps effective |
Memory
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 384 bit |
| BandwidthDifferent | 160.0 GB/s | 264.0 GB/s |
Render Config
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| Shading UnitsDifferent | 1536 | 2048 |
| TMUsDifferent | 96 | 128 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 24 | 32 |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 512 KB | 768 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| Pixel RateDifferent | 26.56 GPixel/s | 29.60 GPixel/s |
| Texture RateDifferent | 79.68 GTexel/s | 118.4 GTexel/s |
| FP32 (float)Different | 2.550 TFLOPS | 3.789 TFLOPS |
| FP64 (double)Different | 637.4 GFLOPS (1:4) | 947.2 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 310 mm12.2 inches | 275 mm10.8 inches |
| HeightDifferent | 115 mm4.5 inches | 111 mm4.4 inches |
| WidthDifferent | 40 mm1.6 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-C20647-00 | 109-C38637-00 |
Graphics Features
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7970 |
|---|---|---|
| DirectXDifferent | 11.2 (11_0) | 12 (11_1) |
| OpenGLDifferent | 4.4 | 4.6 |
| OpenCLDifferent | 1.2 | 2.1 (1.2) |
| VulkanDifferent | N/A | 1.2.170 |
| Shader ModelDifferent | 5.0 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
Detailed Features
More Comparisons with AMD Radeon HD 6990
Compare AMD Radeon HD 6990 with other GPUs of similar performance
AMD Radeon HD 6990 vs GeForce GTX 1650
GeForce GTX 1650 Performance119%
GeForce GTX 1650 is 19% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Radeon RX 6400
Radeon RX 6400 Performance117%
Radeon RX 6400 is 17% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Arc A380
Arc A380 Performance115%
Arc A380 is 15% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs GeForce GTX 780
GeForce GTX 780 Performance115%
GeForce GTX 780 is 15% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance104%
Radeon HD 7970 GHz Edition is 4% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs GeForce GTX 590
GeForce GTX 590 Performance104%
GeForce GTX 590 is 4% faster than AMD Radeon HD 6990
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon HD 7970 vs GeForce GTX 590
GeForce GTX 590 Performance113%
GeForce GTX 590 is 13% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs Radeon R9 280X
Radeon R9 280X Performance111%
Radeon R9 280X is 11% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs Radeon HD 6990
Radeon HD 6990 Performance109%
Radeon HD 6990 is 9% faster than AMD Radeon HD 7970
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon HD 7970 vs GeForce GTX 680
GeForce GTX 680 Performance101%
GeForce GTX 680 is 1% faster than AMD Radeon HD 7970
Compare Detailed Specs