AMD Radeon HD 8870M vs NVIDIA GeForce GTX 480M
Graphics Processor
| GPU model | Venus | GF100 |
|---|---|---|
| GPU variant | Venus XT | N11E-GTX-A3 |
| Architecture | GCN 1.0 | Fermi |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 40 nm |
| Number of transistors | 1,500 million | 3,100 million |
| Die size | 123 mm² | 529 mm² |
Mobile graphics
| Release date | Apr 1st, 2013 | May 25th, 2010 |
|---|---|---|
| Generation | Solar System (HD 8800M) | GeForce 400M |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x16 | MXM-B (3.0) |
| Predecessor | London | GeForce 300M |
| Successor | Crystal System | GeForce 500M |
| Reviews | — | 3 in our database |
Clocks
| Base clock | 725 MHz | — |
|---|---|---|
| Boost clock | 775 MHz | — |
| Memory clock | 1125 MHz 4.5 Gbps effective | 600 MHz 2.4 Gbps effective |
| GPU clock | — | 425 MHz |
| Shader clock | — | 850 MHz |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 72.00 GB/s | 76.80 GB/s |
Render Configuration
| Shading units | 640 | 352 |
|---|---|---|
| TMUs | 40 | 44 |
| ROPs | 16 | 32 |
| Compute units | 10 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 256 KB | 512 KB |
| SM count | — | 11 |
Performance
| Pixel rate | 12.40 GPixel/s | 9.350 GPixel/s |
|---|---|---|
| Texture rate | 31.00 GTexel/s | 18.70 GTexel/s |
| FP32 (float) performance | 992.0 GFLOPS | 598.4 GFLOPS |
| FP64 (double) performance | 62.00 GFLOPS (1:16) | 74.80 GFLOPS (1:8) |
Dimensions & Outputs
| TDP | unknown | 100 W |
|---|---|---|
| Outputs | No outputs | No outputs |
| Slot width | — | MXM Module |
| Power connectors | — | None |
| Board number | — | P1028 |
API Support & Features
| DirectX | 12 (11_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 5.1 |
| CUDA | — | 2.0 |
