AMD Radeon R7 240 OEM vs ATI Mobility Radeon HD 3870
Graphics Processor
| GPU model | Oland | M88 |
|---|---|---|
| Architecture | GCN 1.0 | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 55 nm |
| Number of transistors | 950 million | 666 million |
| Die size | 77 mm² | 192 mm² |
Graphics Card
| Release date | Nov 1st, 2013 | — |
|---|---|---|
| Generation | Volcanic Islands | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x8 | — |
| Predecessor | Sea Islands | — |
| Successor | Pirate Islands | — |
Clocks
| Base clock | 730 MHz | — |
|---|---|---|
| Boost clock | 780 MHz | — |
| Memory clock | 900 MHz 1800 Mbps effective | 850 MHz 1700 Mbps effective |
| GPU clock | — | 660 MHz |
Memory Configuration
| Memory size | 2 GB | 512 MB |
|---|---|---|
| Memory type | DDR3 | GDDR3 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 28.80 GB/s | 54.40 GB/s |
Render Configuration
| Shading units | 320 | 320 |
|---|---|---|
| TMUs | 20 | 16 |
| ROPs | 8 | 16 |
| Compute units | 5 | 4 |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | 256 KB |
Performance
| Pixel rate | 6.240 GPixel/s | 10.56 GPixel/s |
|---|---|---|
| Texture rate | 15.60 GTexel/s | 10.56 GTexel/s |
| FP32 (float) performance | 499.2 GFLOPS | 422.4 GFLOPS |
| FP64 (double) performance | 31.20 GFLOPS (1:16) | 84.48 GFLOPS (1:5) |
Dimensions & Outputs
| Slot width | Single-slot | — |
|---|---|---|
| TDP | 50 W | 55 W |
| Suggested PSU | 250 W | — |
| Outputs | 1x DVI1x HDMI1x VGA | No outputs |
| Power connectors | None | — |
| Board number | C552 | — |
API Support & Features
| DirectX | 12 (11_1) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | — |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 4.1 |
Other Features
Mobile graphics
| Release date | — | Jun 4th, 2008 |
|---|---|---|
| Generation | — | M8x (Mobility HD 3800) |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Reviews | — | 2 in our database |
| Predecessor | — | M7x |
| Successor | — | M9x |
