GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6990
176%
176%
AMD Radeon HD 6950
57%
57%
AMD Radeon HD 6990 is approximately 119% faster
Technical Specifications
| Specification | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| Graphics ProcessorDifferent | Antilles x2 | Cayman |
| CoresDifferent | 1536 x2 | 1408 |
| TMUsDifferent | 96 x2 | 88 |
| ROPsDifferent | 32 x2 | 32 |
| Memory SizeDifferent | 2 GB x2 | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| GPU NameDifferent | Antilles | Cayman |
| GPU VariantDifferent | Antilles XT(215-0807027) | Cayman PRO(215-0807019) |
| Architecture | TeraScale 3 | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process Size | 40 nm | 40 nm |
| Transistors | 2,640 million | 2,640 million |
| Density | 6.8M / mm² | 6.8M / mm² |
| Die Size | 389 mm² | 389 mm² |
Graphics Card
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| Release DateDifferent | Mar 8th, 2011 | Dec 14th, 2010 |
| Generation | Northern Islands(HD 6900) | Northern Islands(HD 6900) |
| Predecessor | Evergreen | Evergreen |
| Successor | Southern Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 699 USD | 299 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 47 in our database | 111 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| GPU ClockDifferent | 830 MHz | 800 MHz |
| Memory Clock | 1250 MHz5 Gbps effective | 1250 MHz5 Gbps effective |
Memory
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| Memory Size | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| Bandwidth | 160.0 GB/s | 160.0 GB/s |
Render Config
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| Shading UnitsDifferent | 1536 | 1408 |
| TMUsDifferent | 96 | 88 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 24 | 22 |
| L1 Cache | 8 KB (per CU) | 8 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| Pixel RateDifferent | 26.56 GPixel/s | 25.60 GPixel/s |
| Texture RateDifferent | 79.68 GTexel/s | 70.40 GTexel/s |
| FP32 (float)Different | 2.550 TFLOPS | 2.253 TFLOPS |
| FP64 (double)Different | 637.4 GFLOPS (1:4) | 563.2 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 310 mm12.2 inches | 286 mm11.3 inches |
| HeightDifferent | 115 mm4.5 inches | 126 mm5 inches |
| WidthDifferent | 40 mm1.6 inches | 42 mm1.7 inches |
| TDPDifferent | 375 W | 200 W |
| Suggested PSUDifferent | 750 W | 550 W |
| OutputsDifferent | 1x DVI4x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 8-pin | 2x 6-pin |
| Board NumberDifferent | 109-C20647-00 | 109-C21647-00 |
Graphics Features
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6950 |
|---|---|---|
| DirectX | 11.2 (11_0) | 11.2 (11_0) |
| OpenGL | 4.4 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | N/A | N/A |
| Shader Model | 5.0 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
46
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 6950
Compare AMD Radeon HD 6950 with other GPUs of similar performance
AMD Radeon HD 6950 vs Radeon RX 560
Radeon RX 560 Performance119%
Radeon RX 560 is 19% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs GeForce GTX 570
GeForce GTX 570 Performance117%
GeForce GTX 570 is 17% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs GeForce GTX 660
GeForce GTX 660 Performance117%
GeForce GTX 660 is 17% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs Radeon R7 370
Radeon R7 370 Performance116%
Radeon R7 370 is 16% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs Radeon HD 6970
Radeon HD 6970 Performance112%
Radeon HD 6970 is 12% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs GeForce GTX 480
GeForce GTX 480 Performance107%
GeForce GTX 480 is 7% faster than AMD Radeon HD 6950
Compare Detailed Specs