AMD Radeon HD 7990 vs NVIDIA GeForce Go 7800 GTX
Graphics Processor
| GPU model | Malta | G70 |
|---|---|---|
| GPU variant | Malta XT (215-0849026) | — |
| Architecture | GCN 1.0 | Curie |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 110 nm |
| Number of transistors | 4,313 million | 302 million |
| Die size | 365 mm² | 333 mm² |
Graphics Card
| Release date | Apr 24th, 2013 | — |
|---|---|---|
| Generation | Southern Islands | — |
| Production | End-of-life | — |
| Launch price | 999 USD | — |
| Interface | PCIe 3.0 x16 | — |
| Reviews | 37 in our database | — |
| Predecessor | Northern Islands | — |
| Successor | Sea Islands | — |
Clocks
| Base clock | 950 MHz | — |
|---|---|---|
| Boost clock | 1000 MHz | — |
| Memory clock | 1500 MHz 6 Gbps effective | 550 MHz 1100 Mbps effective |
| GPU clock | — | 440 MHz |
Memory Configuration
| Memory size | 3 GB | 512 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR3 |
| Memory bus width | 384 bit | 256 bit |
| Bandwidth | 288.0 GB/s | 35.20 GB/s |
Render Configuration
| Shading units | 2048 | — |
|---|---|---|
| TMUs | 128 | 24 |
| ROPs | 32 | 16 |
| Compute units | 32 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 768 KB | — |
| Pixel shaders | — | 24 |
| Vertex shaders | — | 8 |
Performance
| Pixel rate | 32.00 GPixel/s | 7.040 GPixel/s |
|---|---|---|
| Texture rate | 128.0 GTexel/s | 10.56 GTexel/s |
| FP32 (float) performance | 4.096 TFLOPS | — |
| FP64 (double) performance | 1,024 GFLOPS (1:4) | — |
| Vertex rate | — | 880.0 MVertices/s |
Dimensions & Outputs
| Slot width | Dual-slot | MXM Module |
|---|---|---|
| Length | 304 mm 12 inches | — |
| Width | 106 mm 4.2 inches | — |
| Height | 38 mm 1.5 inches | — |
| TDP | 375 W | 65 W |
| Suggested PSU | 750 W | — |
| Outputs | 1x DVI4x mini-DisplayPort | No outputs |
| Power connectors | 2x 8-pin | None |
| Board number | C476-37 | P461 |
API Support & Features
| DirectX | 12 (11_1) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 4.6 | 2.1 |
| OpenCL | 1.2 | — |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 3.0 |
Other Features
Mobile graphics
| Release date | — | Sep 29th, 2005 |
|---|---|---|
| Generation | — | GeForce Go 7 (Go 7000) |
| Production | — | End-of-life |
| Interface | — | PCIe 1.0 x16 |
| Predecessor | — | GeForce Go 6 |
| Successor | — | GeForce 8M |
