Vega 56 should have led to lower prices. Instead, the 1070 Ti maintains the status quo.
Mark Walton
| SPECS AT A GLANCE: GEFORCE GTX 1070 TI | |
|---|---|
| CUDA CORES | 2432 |
| TEXTURE UNITS | 152 |
| ROPS | 64 |
| CORE CLOCK | 1,607MHz |
| BOOST CLOCK | 1,683MHz |
| MEMORY BUS WIDTH | 256-bit |
| MEMORY BANDWIDTH | 256GB/s |
| MEMORY SIZE | 8GB GDDR5 |
| OUTPUTS | 3x DisplayPort 1.4, 1x HDMI 2.0b with support for 4K60 HDR 10/12b HEVC Decode, 1x dual-link DVI |
| RELEASE DATE | November 2 |
| PRICE | Founders Edition (as reviewed): £419/$449/€469 |
The GTX 1070 Ti is a great graphics card but a frustrating product. In the year and a half since the GTX 1080 and the GTX 1070 launched, Nvidia has faced little competition from rival AMD, which has been stretched thin across the launch of mainstream graphics cards like the RX 480 and high-end processors like Ryzen Threadripper. As brilliant as those products are, particularly Threadripper, it took until August of this year for AMD to launch a competitor to Nvidia's year-old graphics cards. The resulting RX Vega 64 wasn't the graphical powerhouse many were hoping for, with high power consumption and performance that couldn't quite top a GTX 1080.
The one bright spot was Vega 56, which handily beat the GTX 1070's performance across a wide range of games for around the same price (Ethereum mining price inflation notwithstanding). Given the age of Nvidia's products, a price drop seemed like a natural solution. But this is Nvidia—and Nvidia won't let AMD have nice things. And so we have the GTX 1070 Ti, a "kick a man when he's down" kind of product that shatters the sole success story of the Vega lineup. For around a £20/$20 premium over Vega 56, the GTX 1070 Ti offers tangible boost in performance over a GTX 1070 and, when overclocked, performance as good as (if not better) than a GTX 1080.
Specs
The GTX 1070 Ti is based on the same GP104 GPU used in GTX 1070, but with a CUDA core count much closer to the GTX 1080—2,432 instead of 2,560. The GTX 1070 Ti isn't a pumped-up GTX 1070; instead, it's a cut-down GTX 1080, the key difference being the use of 8GB of standard GDRR5 memory instead of faster GDDR5X memory. Stock clocks are rated at 1,607MHz base and 1,683MHz boost, but as with all Nvidia graphics cards, the boost clock is typically much higher in real-world use with reasonable cooling. The Founders Edition card reviewed, which recycles Nvidia's unremarkable if visually appealing blower-style vapor chamber cooler from the GTX 1080, consistently runs at 1,847MHz under load.
| GTX 1080 | GTX 1070 TI | GTX 1070 | GTX 1060 | GTX TITAN X | GTX 980 TI | GTX 980 | GTX 970 | |
|---|---|---|---|---|---|---|---|---|
| CUDA CORES | 2,560 | 2,432 | 1,920 | 1,280 | 3,072 | 2,816 | 2,048 | 1,664 |
| TEXTURE UNITS | 160 | 152 | 120 | 80 | 192 | 176 | 128 | 104 |
| ROPS | 64 | 64 | 64 | 48 | 96 | 96 | 64 | 56 |
| CORE CLOCK | 1,607MHz | 1,607MHz | 1,506MHz | 1,506MHz | 1,000MHz | 1,000MHz | 1,126MHz | 1,050MHz |
| BOOST CLOCK | 1,733MHz | 1,683MHz | 1,683MHz | 1,708MHz | 1,050MHz | 1,050MHz | 1,216MHz | 1,178MHz |
| MEMORY BUS WIDTH | 256-bit | 256-bit | 256-bit | 192-bit | 384-bit | 384-bit | 256-bit | 256-bit |
| MEMORY SPEED | 10GHz | 8GHz | 8GHz | 8GHz | 7GHz | 7GHz | 7GHz | 7GHz |
| MEMORY BANDWIDTH | 320GB/s | 256GB/s | 256GB/s | 192GB/s | 336GB/s | 336GB/s | 224GB/s | 196GB/s |
| MEMORY SIZE | 8GB GDDR5X | 8GB GDDR5 | 8GB GDDR5 | 6GB GDDR5 | 12GB GDDR5 | 6GB GDDR5 | 4GB GDDR5 | 4GB GDDR5 |
| TDP | 180W | 180W | 150W | 120W | 250W | 250W | 165W | 145W |
The likes of Asus, MSI, and EVGA have their own take on the GTX 1070 Ti complete with complex heat pipes and triple-fan arrangements for superior cooling. All offer some form of factory overclock, which pushes the boost clock further still, but—contrary to some questionable reports earlier this year—user overclocking is fully supported in standard applications like EVGA Precision XOC and MSI Afterburner. Naturally, there's a premium attached to the third-party cards that makes some of them more expensive than GTX 1080s (here's looking at you, Asus). Go for a cheaper model with good cooling and apply the overclock yourself, otherwise you might as well just buy a GTX 1080.
Connectivity varies, but the Founders Edition GTX 1070 Ti features three DisplayPort 1.4a ports, one HDMI 2.0b port (with support for HDR), and one dual-link DVI port for those rocking classic high-res monitors. SLI up to two cards is supported, while TDP is the same as the GTX 1080 at 180W. While TDPs can't be directly compared between manufacturers, numerous reviews show Vega 56 to have much higher power consumption than even the GTX 1080. Nvidia's Pascal architecture is simply more efficient than Vega, despite having been released almost a year and a half earlier.
Performance
| TEST SYSTEM SPECIFICATIONS | |
|---|---|
| OS | Windows 10 |
| CPU | Intel Core i7-5930K, 6-core @ 4.5GHz |
| RAM | 32GB Corsair DDR4 @ 3,000MHz |
| HDD | 512GB Samsung SM951 M.2 PCI-e 3.0 SSD, 500GB Samsung Evo SSD |
| MOTHERBOARD | ASUS X99 Deluxe USB 3.1 |
| POWER SUPPLY | Corsair HX1200i |
| COOLING | Corsair H110i GT liquid cooler |
| MONITOR | Asus ROG Swift PG27AQ 4K |
With the Pascal architecture being so much of a known quantity at this point (for more on Pascal, check out the GTX 1080 review), there are few surprises when it comes to performance and overclocking. With a few clicks, it's easy to get the Founders Edition GTX 1070 Ti up to 2012MHz on the core clock and 8100MHz on memory. There's definitely a little more headroom there for those willing to tweak voltages or watercool, but for the vast majority of people, firing up MSI Afterburner and moving a couple of sliders around nets a substantial boost in performance.
As always I pushed the GTX 1070 Ti through a range of games and synthetic benchmarks on the standard graphics card test system. Both the benchmarks and the system are in need of an overhaul after a couple of years of testing (a large project, as you can imagine) but remain relevant for this generation of GPUs. Each game was tested at 1080p, 1440p, and UHD (4K) resolutions at high or ultra settings at stock speeds. On the synthetics and science side there's the standard 3DMark Firestrike benchmark (again, run across three resolutions), as well as LuxMark 3.0 and CompuBench to test compute performance.
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