AMD Radeon HD 7970 vs NVIDIA GeForce RTX 3080 Ti
Graphics Processor
| GPU model | Tahiti | GA102 |
|---|---|---|
| GPU variant | Tahiti XT (215-0821060) | GA102-300-A1 |
| Architecture | GCN 1.0 | Ampere |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 7 nm |
| Number of transistors | 4,313 million | 40,000 million |
| Die size | 352 mm² | 627 mm² |
Graphics Card
| Release date | Dec 22nd, 2011 | 2020 |
|---|---|---|
| Generation | Southern Islands | GeForce 30 |
| Production | End-of-life | Unreleased |
| Launch price | 549 USD | 1,399 USD |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Reviews | 191 in our database | — |
| gpu.details.availability | Jan 9th, 2012 | — |
| Predecessor | Northern Islands | — |
| Successor | Sea Islands | — |
Clocks
| GPU clock | 925 MHz | — |
|---|---|---|
| Memory clock | 1375 MHz 5.5 Gbps effective | 2375 MHz 19000 MHz effective |
| Base clock | — | 1410 MHz |
| Boost clock | — | 1740 MHz |
Memory Configuration
| Memory size | 3 GB | 12 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR6X |
| Memory bus width | 384 bit | 384 bit |
| Bandwidth | 264.0 GB/s | 912.0 GB/s |
Render Configuration
| Shading units | 2048 | 5120 |
|---|---|---|
| TMUs | 128 | 320 |
| ROPs | 32 | 96 |
| Compute units | 32 | — |
| Cache L1 | 16 KB (per CU) | 192 KB (per SM) |
| Cache L2 | 768 KB | 6 MB |
| SM count | — | 80 |
| Tensor cores | — | 640 |
| RT cores | — | 160 |
Performance
| Pixel rate | 29.60 GPixel/s | 167.0 GPixel/s |
|---|---|---|
| Texture rate | 118.4 GTexel/s | 556.8 GTexel/s |
| FP32 (float) performance | 3.789 TFLOPS | 17.82 TFLOPS |
| FP64 (double) performance | 947.2 GFLOPS (1:4) | 556.8 GFLOPS (1:32) |
| FP16 (half) performance | — | 35.64 TFLOPS (2:1) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 275 mm 10.8 inches | 267 mm 10.5 inches |
| Width | 111 mm 4.4 inches | — |
| Height | 38 mm 1.5 inches | — |
| TDP | 250 W | 320 W |
| Suggested PSU | 600 W | 700 W |
| Outputs | 1x DVI1x HDMI2x mini-DisplayPort | 1x HDMI3x DisplayPort1x USB Type-C |
| Power connectors | 1x 6-pin + 1x 8-pin | 1x 12-pin |
| Board number | C386-37 | PG132 SKU 20 |
API Support & Features
| DirectX | 12 (11_1) | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.2 | 1.2.140 |
| Shader model | 5.1 | 6.5 |
| CUDA | — | 8.5 |
