ATI Radeon HD 2900 XT vs ATI Radeon HD 5770
Graphics Processor
| GPU model | R600 | Juniper |
|---|---|---|
| GPU variant | R600 XT (215RGMDKA13FG) | Juniper XT (215-0754013) |
| Architecture | TeraScale | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 80 nm | 40 nm |
| Number of transistors | 720 million | 1,040 million |
| Die size | 420 mm² | 166 mm² |
Graphics Card
| Release date | May 14th, 2007 | Oct 13th, 2009 |
|---|---|---|
| Generation | Radeon R600 | Evergreen |
| Production | End-of-life | End-of-life |
| Launch price | 399 USD | 159 USD |
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Reviews | 63 in our database | 142 in our database |
| Predecessor | Radeon R500 PCIe | Radeon R700 |
| Successor | Radeon R700 | Northern Islands |
Clocks
| GPU clock | 743 MHz | 850 MHz |
|---|---|---|
| Memory clock | 828 MHz 1656 Mbps effective | 1200 MHz 4.8 Gbps effective |
Memory Configuration
| Memory size | 512 MB | 1024 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR5 |
| Memory bus width | 512 bit | 128 bit |
| Bandwidth | 106.0 GB/s | 76.80 GB/s |
Render Configuration
| Shading units | 320 | 800 |
|---|---|---|
| TMUs | 16 | 40 |
| ROPs | 16 | 16 |
| Compute units | 4 | 10 |
| Cache L2 | 256 KB | 256 KB |
| Cache L1 | — | 8 KB (per CU) |
Performance
| Pixel rate | 11.89 GPixel/s | 13.60 GPixel/s |
|---|---|---|
| Texture rate | 11.89 GTexel/s | 34.00 GTexel/s |
| FP32 (float) performance | 475.5 GFLOPS | 1,360 GFLOPS |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 241 mm 9.5 inches | 208 mm 8.2 inches |
| TDP | 215 W | 108 W |
| Suggested PSU | 550 W | 300 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x HDMI1x DisplayPort |
| Power connectors | 1x 6-pin + 1x 8-pin | 1x 6-pin |
| Board number | B006-01 | C010 |
API Support & Features
| DirectX | 10.0 (10_0) | 11.2 (11_0) |
|---|---|---|
| OpenGL | 3.3 (full) 4.0 (partial) | 4.4 |
| OpenCL | — | 1.2 |
| Vulkan | — | — |
| Shader model | 4.0 | 5.0 |
