GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon RX 6650 XT
326%
326%
AMD Radeon HD 6990
31%
31%
AMD Radeon RX 6650 XT is approximately 295% faster
Technical Specifications
| Specification | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| Graphics ProcessorDifferent | Navi 23 | Antilles x2 |
| CoresDifferent | 2048 | 1536 x2 |
| TMUsDifferent | 128 | 96 x2 |
| ROPsDifferent | 64 | 32 x2 |
| Memory SizeDifferent | 8 GB | 2 GB x2 |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Bus WidthDifferent | 128 bit | 256 bit x2 |
Graphics Processor
| Feature | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| GPU NameDifferent | Navi 23 | Antilles |
| GPU VariantDifferent | Navi 23 KXT(215-130000136) | Antilles XT(215-0807027) |
| ArchitectureDifferent | RDNA 2.0 | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 7 nm | 40 nm |
| TransistorsDifferent | 11,060 million | 2,640 million |
| DensityDifferent | 46.7M / mm² | 6.8M / mm² |
| Die SizeDifferent | 237 mm² | 389 mm² |
| Chip PackageDifferent | BGA-1269 | N/A |
Graphics Card
| Feature | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| Release DateDifferent | May 10th, 2022 | Mar 8th, 2011 |
| GenerationDifferent | Navi II(RX 6000) | Northern Islands(HD 6900) |
| PredecessorDifferent | Navi | Evergreen |
| SuccessorDifferent | Navi III | Southern Islands |
| ProductionDifferent | Active | End-of-life |
| Launch PriceDifferent | 399 USD | 699 USD |
| Bus InterfaceDifferent | PCIe 4.0 x8 | PCIe 2.0 x16 |
| ReviewsDifferent | 14 in our database | 47 in our database |
Clock Speeds
| Feature | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| Base ClockDifferent | 2055 MHz | N/A |
| Game ClockDifferent | 2410 MHz | N/A |
| Boost ClockDifferent | 2635 MHz | N/A |
| Memory ClockDifferent | 2190 MHz17.5 Gbps effective | 1250 MHz5 Gbps effective |
| GPU ClockDifferent | N/A | 830 MHz |
Memory
| Feature | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| Memory SizeDifferent | 8 GB | 2 GB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 280.3 GB/s | 160.0 GB/s |
Render Config
| Feature | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| Shading UnitsDifferent | 2048 | 1536 |
| TMUsDifferent | 128 | 96 |
| ROPsDifferent | 64 | 32 |
| Compute UnitsDifferent | 32 | 24 |
| RT CoresDifferent | 32 | N/A |
| L0 CacheDifferent | 32 KB per WGP | N/A |
| L1 CacheDifferent | 128 KB per Array | 8 KB (per CU) |
| L2 CacheDifferent | 2 MB | 512 KB |
| L3 CacheDifferent | 32 MB | N/A |
Theoretical Performance
| Feature | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| Pixel RateDifferent | 168.6 GPixel/s | 26.56 GPixel/s |
| Texture RateDifferent | 337.3 GTexel/s | 79.68 GTexel/s |
| FP16 (half)Different | 21.59 TFLOPS (2:1) | N/A |
| FP32 (float)Different | 10.79 TFLOPS | 2.550 TFLOPS |
| FP64 (double)Different | 674.6 GFLOPS (1:16) | 637.4 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| TDPDifferent | 176 W | 375 W |
| Suggested PSUDifferent | 450 W | 750 W |
| OutputsDifferent | 1x HDMI 2.13x DisplayPort 1.4a | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 8-pin | 2x 8-pin |
| Board NumberDifferent | D532 | 109-C20647-00 |
| LengthDifferent | N/A | 310 mm12.2 inches |
| HeightDifferent | N/A | 115 mm4.5 inches |
| WidthDifferent | N/A | 40 mm1.6 inches |
Graphics Features
| Feature | AMD Radeon RX 6650 XT | AMD Radeon HD 6990 |
|---|---|---|
| DirectXDifferent | 12 Ultimate (12_2) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 2.1 | 1.2 |
| VulkanDifferent | 1.3 | N/A |
| Shader ModelDifferent | 6.8 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
54
Detailed Features
More Comparisons with AMD Radeon RX 6650 XT
Compare AMD Radeon RX 6650 XT with other GPUs of similar performance
AMD Radeon RX 6650 XT vs GeForce RTX 3060 Ti
GeForce RTX 3060 Ti Performance117%
GeForce RTX 3060 Ti is 17% faster than AMD Radeon RX 6650 XT
Compare Detailed Specs
AMD Radeon RX 6650 XT vs Radeon RX 6700 XT
Radeon RX 6700 XT Performance115%
Radeon RX 6700 XT is 15% faster than AMD Radeon RX 6650 XT
Compare Detailed Specs
AMD Radeon RX 6650 XT vs GeForce RTX 2080 SUPER
GeForce RTX 2080 SUPER Performance107%
GeForce RTX 2080 SUPER is 7% faster than AMD Radeon RX 6650 XT
Compare Detailed Specs
AMD Radeon RX 6650 XT vs Radeon RX 7600 XT
Radeon RX 7600 XT Performance106%
Radeon RX 7600 XT is 6% faster than AMD Radeon RX 6650 XT
Compare Detailed Specs
AMD Radeon RX 6650 XT vs GeForce RTX 4060
GeForce RTX 4060 Performance106%
GeForce RTX 4060 is 6% faster than AMD Radeon RX 6650 XT
Compare Detailed Specs
AMD Radeon RX 6650 XT vs Arc B580
Arc B580 Performance106%
Arc B580 is 6% faster than AMD Radeon RX 6650 XT
Compare Detailed Specs
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