GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon RX 7900 GRE
1504%
1504%
AMD Radeon HD 7770 GHz Edition
18%
18%
AMD Radeon RX 7900 GRE is approximately 1486% faster
Technical Specifications
| Specification | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Graphics ProcessorDifferent | Navi 31 | Cape Verde |
| CoresDifferent | 5120 | 640 |
| TMUsDifferent | 320 | 40 |
| ROPsDifferent | 160 | 16 |
| Memory SizeDifferent | 16 GB | 1024 MB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Bus WidthDifferent | 256 bit | 128 bit |
Graphics Processor
| Feature | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| GPU NameDifferent | Navi 31 | Cape Verde |
| CodenameDifferent | Plum Bonito | N/A |
| GPU VariantDifferent | Navi 31 XL(215-145000206) | Cape Verde XT(215-0825117) |
| ArchitectureDifferent | RDNA 3.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 5 nm | 28 nm |
| MCD ProcessDifferent | 6 nm | N/A |
| Process TypeDifferent | N5 / N6 FinFET | N/A |
| TransistorsDifferent | 57,700 million | 1,500 million |
| GCD TransistorsDifferent | 45,400 million | N/A |
| MCD TransistorsDifferent | 2,050 million x6 | N/A |
| DensityDifferent | 109.1M / mm² | 12.2M / mm² |
| GCD DensityDifferent | 150.2M / mm² | N/A |
| MCD DensityDifferent | 54.64M / mm² | N/A |
| Die SizeDifferent | 529 mm² | 123 mm² |
| GCD Die SizeDifferent | 304.35 mm² | N/A |
| MCD Die SizeDifferent | 37.52 mm² x6 | N/A |
| Chip PackageDifferent | MCM | FCBGA-962 |
Graphics Card
| Feature | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Release DateDifferent | Jul 27th, 2023 | Feb 15th, 2012 |
| GenerationDifferent | Navi III(RX 7000) | Southern Islands(HD 7700) |
| PredecessorDifferent | Navi II | Northern Islands |
| SuccessorDifferent | Navi IV | Sea Islands |
| ProductionDifferent | Active | End-of-life |
| Launch PriceDifferent | 549 USD | 159 USD |
| Current PriceDifferent | Amazon/Newegg | N/A |
| Bus InterfaceDifferent | PCIe 4.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 34 in our database | 97 in our database |
Clock Speeds
| Feature | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Base ClockDifferent | 1287 MHz | N/A |
| Shader ClockDifferent | 1880 MHz | N/A |
| Game ClockDifferent | 1880 MHz | N/A |
| Boost ClockDifferent | 2245 MHz | N/A |
| Memory ClockDifferent | 2250 MHz18 Gbps effective | 1125 MHz4.5 Gbps effective |
| GPU ClockDifferent | N/A | 1000 MHz |
Memory
| Feature | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Memory SizeDifferent | 16 GB | 1024 MB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Memory BusDifferent | 256 bit | 128 bit |
| BandwidthDifferent | 576.0 GB/s | 72.00 GB/s |
Render Config
| Feature | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Shading UnitsDifferent | 5120 | 640 |
| TMUsDifferent | 320 | 40 |
| ROPsDifferent | 160 | 16 |
| Compute UnitsDifferent | 80 | 10 |
| Matrix CoresDifferent | 160 | N/A |
| RT CoresDifferent | 80 | N/A |
| L0 CacheDifferent | 64 KB per WGP | N/A |
| L1 CacheDifferent | 256 KB per Array | 16 KB (per CU) |
| L2 CacheDifferent | 6 MB | 256 KB |
| L3 CacheDifferent | 64 MB | N/A |
Theoretical Performance
| Feature | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Pixel RateDifferent | 359.2 GPixel/s | 16.00 GPixel/s |
| Texture RateDifferent | 718.4 GTexel/s | 40.00 GTexel/s |
| FP16 (half)Different | 91.96 TFLOPS (2:1) | N/A |
| FP32 (float)Different | 45.98 TFLOPS | 1,280.0 GFLOPS |
| FP64 (double)Different | 1,436.8 GFLOPS (1:32) | 80.00 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 276 mm10.9 inches | 210 mm8.3 inches |
| HeightDifferent | 110 mm4.3 inches | N/A |
| WidthDifferent | 51 mm2 inches | N/A |
| TDPDifferent | 260 W | 80 W |
| Suggested PSUDifferent | 600 W | 250 W |
| OutputsDifferent | 1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 8-pin | 1x 6-pin |
| Board NumberDifferent | 109-D712A7-00_02 | 109-C44157-00C, C468 |
Graphics Features
| Feature | AMD Radeon RX 7900 GRE | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| DirectXDifferent | 12 Ultimate (12_2) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.2 | 2.1 (1.2) |
| VulkanDifferent | 1.3 | 1.2.170 |
| Shader ModelDifferent | 6.8 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
66
Detailed Features
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