AMD Radeon R5 M255 vs NVIDIA GeForce GTX 560
Graphics Processor
| GPU model | Topaz | GF114 |
|---|---|---|
| GPU variant | Topaz PRO (216-0864032) | GF114-325-A1 |
| Architecture | GCN 3.0 | Fermi 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 40 nm |
| Number of transistors | 1,550 million | 1,950 million |
| Die size | 125 mm² | 332 mm² |
Mobile graphics
| Release date | Oct 12th, 2014 | — |
|---|---|---|
| Generation | Crystal System (R5 M200) | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x8 | — |
| Predecessor | Solar System | — |
| Successor | Mobility Radeon | — |
Clocks
| Base clock | 925 MHz | — |
|---|---|---|
| Boost clock | 940 MHz | — |
| Memory clock | 1000 MHz 4 Gbps effective | 1000 MHz 4 Gbps effective |
| GPU clock | — | 810 MHz |
| Shader clock | — | 1620 MHz |
Memory Configuration
| Memory size | 1024 MB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 64.00 GB/s | 128.0 GB/s |
Render Configuration
| Shading units | 384 | 336 |
|---|---|---|
| TMUs | 24 | 56 |
| ROPs | 8 | 32 |
| Compute units | 6 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 256 KB | 512 KB |
| SM count | — | 7 |
Performance
| Pixel rate | 7.520 GPixel/s | 11.34 GPixel/s |
|---|---|---|
| Texture rate | 22.56 GTexel/s | 45.36 GTexel/s |
| FP16 (half) performance | 721.9 GFLOPS (1:1) | — |
| FP32 (float) performance | 721.9 GFLOPS | 1,089 GFLOPS |
| FP64 (double) performance | 45.12 GFLOPS (1:16) | 90.72 GFLOPS (1:12) |
Dimensions & Outputs
| TDP | unknown | 150 W |
|---|---|---|
| Outputs | No outputs | 2x DVI1x mini-HDMI |
| Slot width | — | Dual-slot |
| Length | — | 210 mm 8.3 inches |
| Suggested PSU | — | 450 W |
| Power connectors | — | 2x 6-pin |
| Board number | — | P1040 SKU 51 |
API Support & Features
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 6.3 | 5.1 |
| CUDA | — | 2.1 |
Other Features
Graphics Card
| Release date | — | May 17th, 2011 |
|---|---|---|
| Generation | — | GeForce 500 |
| Production | — | End-of-life |
| Launch price | — | 199 USD |
| Interface | — | PCIe 2.0 x16 |
| Reviews | — | 48 in our database |
| Predecessor | — | GeForce 400 |
| Successor | — | GeForce 600 |
