ATI Radeon HD 5870 Eyefinity 6 vs NVIDIA GeForce 840A
Graphics Processor
| GPU model | Cypress | GM108 |
|---|---|---|
| GPU variant | Cypress XT (215-0735033) | — |
| Architecture | TeraScale 2 | Maxwell |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 28 nm |
| Number of transistors | 2,154 million | unknown |
| Die size | 334 mm² | unknown |
Graphics Card
| Release date | Mar 11th, 2010 | — |
|---|---|---|
| Generation | Evergreen | — |
| Production | End-of-life | — |
| Launch price | 479 USD | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 12 in our database | — |
| Predecessor | Radeon R700 | — |
| Successor | Northern Islands | — |
Clocks
| GPU clock | 850 MHz | — |
|---|---|---|
| Memory clock | 1200 MHz 4.8 Gbps effective | 1001 MHz 2 Gbps effective |
| Base clock | — | 1029 MHz |
| Boost clock | — | 1124 MHz |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | DDR3 |
| Memory bus width | 256 bit | 64 bit |
| Bandwidth | 153.6 GB/s | 16.02 GB/s |
Render Configuration
| Shading units | 1600 | 384 |
|---|---|---|
| TMUs | 80 | 16 |
| ROPs | 32 | 8 |
| Compute units | 20 | — |
| Cache L1 | 8 KB (per CU) | 64 KB (per SMM) |
| Cache L2 | 512 KB | 1024 KB |
| SMM count | — | 3 |
Performance
| Pixel rate | 27.20 GPixel/s | 8.992 GPixel/s |
|---|---|---|
| Texture rate | 68.00 GTexel/s | 17.98 GTexel/s |
| FP32 (float) performance | 2.720 TFLOPS | 863.2 GFLOPS |
| FP64 (double) performance | 544.0 GFLOPS (1:5) | 26.98 GFLOPS (1:32) |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| Length | 280 mm 11 inches | — |
| Width | 111 mm 4.4 inches | — |
| Height | 37 mm 1.5 inches | — |
| TDP | 228 W | 33 W |
| Suggested PSU | 550 W | — |
| Outputs | 6x mini-DisplayPort | No outputs |
| Power connectors | 1x 6-pin + 1x 8-pin | — |
| Board number | C004-37 | — |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | — | 1.1 |
| Shader model | 5.0 | 5.1 |
| CUDA | — | 5.0 |
Other Features
Mobile graphics
| Release date | — | Mar 17th, 2014 |
|---|---|---|
| Generation | — | GeForce 800A |
| Production | — | End-of-life |
| Interface | — | PCIe 3.0 x8 |
| Predecessor | — | GeForce 700A |
| Successor | — | GeForce 900A |
