GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7970 GHz Edition
1407%
1407%
AMD Radeon HD 6450
7%
7%
AMD Radeon HD 7970 GHz Edition is approximately 1400% faster
Technical Specifications
| Specification | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Graphics ProcessorDifferent | Tahiti | Caicos |
| CoresDifferent | 2048 | 160 |
| TMUsDifferent | 128 | 8 |
| ROPsDifferent | 32 | 4 |
| Memory SizeDifferent | 3 GB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Bus WidthDifferent | 384 bit | 64 bit |
Graphics Processor
| Feature | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| GPU NameDifferent | Tahiti | Caicos |
| GPU VariantDifferent | Tahiti XT2(215-0821065) | Caicos PRO |
| ArchitectureDifferent | GCN 1.0 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 4,313 million | 370 million |
| DensityDifferent | 12.3M / mm² | 5.5M / mm² |
| Die SizeDifferent | 352 mm² | 67 mm² |
| Chip PackageDifferent | N/A | FCBGA-631 |
Graphics Card
| Feature | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Release DateDifferent | Jun 22nd, 2012 | Apr 7th, 2011 |
| GenerationDifferent | Southern Islands(HD 7900) | Northern Islands(HD 6400) |
| PredecessorDifferent | Northern Islands | Evergreen |
| SuccessorDifferent | Sea Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 499 USD | 55 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 191 in our database | 14 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Base ClockDifferent | 1000 MHz | N/A |
| Boost ClockDifferent | 1050 MHz | N/A |
| Memory ClockDifferent | 1500 MHz6 Gbps effective | 500 MHz1000 Mbps effective |
| GPU ClockDifferent | N/A | 625 MHz |
Memory
| Feature | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Memory SizeDifferent | 3 GB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Memory BusDifferent | 384 bit | 64 bit |
| BandwidthDifferent | 288.0 GB/s | 8.000 GB/s |
Render Config
| Feature | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Shading UnitsDifferent | 2048 | 160 |
| TMUsDifferent | 128 | 8 |
| ROPsDifferent | 32 | 4 |
| Compute UnitsDifferent | 32 | 2 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 768 KB | 128 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Pixel RateDifferent | 33.60 GPixel/s | 2.500 GPixel/s |
| Texture RateDifferent | 134.4 GTexel/s | 5.000 GTexel/s |
| FP32 (float)Different | 4.301 TFLOPS | 200.0 GFLOPS |
| FP64 (double)Different | 1,075.2 GFLOPS (1:4) | N/A |
Board Design
| Feature | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 275 mm10.8 inches | 168 mm6.6 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 38 mm1.5 inches | N/A |
| TDPDifferent | 300 W | 18 W |
| Suggested PSUDifferent | 700 W | 200 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | 1x DVI1x HDMI 1.3a1x VGA |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | None |
| Board NumberDifferent | 109-C38637-00 | 109-C26037-00A |
Graphics Features
| Feature | AMD Radeon HD 7970 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| DirectXDifferent | 12 (11_1) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 2.1 (1.2) | 1.2 |
| VulkanDifferent | 1.2.170 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
49
Detailed Features
More Comparisons with AMD Radeon HD 7970 GHz Edition
Compare AMD Radeon HD 7970 GHz Edition with other GPUs of similar performance
AMD Radeon HD 7970 GHz Edition vs GeForce GTX 1650
GeForce GTX 1650 Performance115%
GeForce GTX 1650 is 15% faster than AMD Radeon HD 7970 GHz Edition
Compare Detailed Specs
AMD Radeon HD 7970 GHz Edition vs Radeon RX 6400
Radeon RX 6400 Performance112%
Radeon RX 6400 is 12% faster than AMD Radeon HD 7970 GHz Edition
Compare Detailed Specs
AMD Radeon HD 7970 GHz Edition vs Arc A380
Arc A380 Performance111%
Arc A380 is 11% faster than AMD Radeon HD 7970 GHz Edition
Compare Detailed Specs
AMD Radeon HD 7970 GHz Edition vs GeForce GTX 780
GeForce GTX 780 Performance111%
GeForce GTX 780 is 11% faster than AMD Radeon HD 7970 GHz Edition
Compare Detailed Specs
AMD Radeon HD 7970 GHz Edition vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance100%
Radeon HD 7970 GHz Edition is 0% slower than AMD Radeon HD 7970 GHz Edition
Compare Detailed Specs
AMD Radeon HD 7970 GHz Edition vs GeForce GTX 590
GeForce GTX 590 Performance100%
GeForce GTX 590 is 0% slower than AMD Radeon HD 7970 GHz Edition
Compare Detailed Specs
More Comparisons with AMD Radeon HD 6450
Compare AMD Radeon HD 6450 with other GPUs of similar performance
AMD Radeon HD 6450 vs GeForce GT 520
GeForce GT 520 Performance106%
GeForce GT 520 is 6% faster than AMD Radeon HD 6450
Compare Detailed Specs
AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
Compare Detailed Specs
AMD Radeon HD 6450 vs Radeon HD 5450
Radeon HD 5450 Performance85%
Radeon HD 5450 is 15% slower than AMD Radeon HD 6450
Compare Detailed Specs
AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
Compare Detailed Specs
AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
Compare Detailed Specs