Less than two weeks on from their announcement at Gamescom 2023, right this moment marks the discharge of AMD’s new mid-range GPUs, the RX 7700 XT and the RX 7800 XT. This overview will deal with the previous card, although we do have a separate evaluation of the RX 7800 XT if you wish to learn that. Utilising a cut-down implementation of AMD’s Navi 32 chiplet-based silicon, the RX 7700 XT lands at £429.99, with AMD positioning it head-to-head towards the RTX 4060 Ti 16GB. Today we discover out which of those mid-range GPUs will come out on high…
Unlike the RX 7800 XT, which is not essentially a direct successor to the RX 6800 XT, AMD’s new RX 7700 XT is a transparent continuation from the RX 6700 XT. Both launched at across the similar worth, with the RX 7700 XT simply £10 costlier by way of MSRP, whereas they each slot neatly into the mid-tier of AMD’s current choices.
Despite the RTX 4060 Ti 16GB initially launching at £479, playing cards are already out there at simply £430, making this a straight shoot-out between the 2 GPUs. We take a look at twelve video games, plus one other eight with ray tracing enabled, whereas additionally specializing in energy draw and effectivity in right this moment’s overview.
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| RX 7900 XT | RX 7800 XT | RX 7700 XT | RX 6800 XT | RX 6800 | RX 6700 XT | |
| Architecture | RDNA 3 | RDNA 3 | RDNA 3 | RDNA 2 | RDNA 2 | RDNA 2 |
| Manufacturing Process | 5nm GCD + 6nm MCD | 5nm GCD + 6nm MCD | 5nm GCD + 6nm MCD | 7nm | 7nm | 7nm |
| Transistor Count | 57.7 billion | 28.1 billion | 28.1 billion | 26.8 billion | 26.8 billion | 17.2 billion |
| Die Size | 300 mm² GCD 220 mm² MCD | 200 mm² GCD 150 mm² MCD | 200 mm² GCD 150 mm² MCD | 519 mm² | 519 mm² | 336 mm² |
| Compute Units | 84 | 60 | 54 | 72 | 60 | 40 |
| Ray Accelerators | 84 | 60 | 54 | 72 | 60 | 40 |
| Stream Processors | 5376 | 3840 | 3456 | 4608 | 3840 | 2560 |
| Game GPU Clock | Up to 2000 MHz | 2124 MHz | 2171 MHz | Up to 2015MHz | Up to 1815MHz | Up to 2424MHz |
| Boost GPU Clock | Up to 2400 MHz | Up to 2430 MHz | Up to 2544 MHz | Up to 2250MHz | Up to 2105MHz | Up to 2581MHz |
| ROPs | 192 | 96 | 96 | 128 | 96 | 64 |
| AMD Infinity Cache | 80MB | 64MB | 48MB | 128MB | 128MB | 96MB |
| Memory | 20GB GDDR6 20Gbps | 16GB GDDR6 19.5 Gbps | 12GB GDDR6 18Gbps | 16GB GDDR6 16Gbps | 16GB GDDR6 16Gbps | 12GB GDDR6 16Gbps |
| Memory Bandwidth | 800 GB/s | 624 GB/s | 432 GB/s | 512 GB/s | 512 GB/s | 384 GB/s |
| Memory Interface | 320-bit | 256-bit | 192-bit | 256-bit | 256-bit | 192-bit |
| Board Power | 315W | 263W | 245W | 300W | 250W | 230W |
First, let’s take a fast take a look at the specs. Unlike the newest RDNA 3 GPU – the RX 7600 – AMD has made a return to its chiplet-based design for the RX 7700 XT, as we initially noticed final 12 months with the RX 7900 XTX and 7900 XT. This time round, the 7800 XT affords a 200mm² Graphics Compute Die (GCD) utilizing TSMC’s 5nm course of, flanked by 4 150 mm² Memory Compute Dies (MCDs) constructed on TSMC’s 6nm node. One of these MCDs is disabled nevertheless, because the 7700 XT isn’t a full implementation of Navi 32.
Internally although, the compute make-up hasn’t been radically modified. The cut-down Navi 32 silicon deployed right here packs in 54 Compute Units, every of which homes 64 Stream Processors, for a complete of 3456 shaders. There’s additionally 54 Ray Accelerators – one per CU – and 96 ROPs.
As for clock pace, this stays excessive with the RX 7700 XT, with AMD touting a lift of as much as 2544MHz, although a barely decrease recreation clock of 2171MHz.
Meanwhile, the reminiscence configuration is sort of similar to the earlier era RX 6700 XT. We nonetheless discover 12GB GDDR6 working over a 192-bit interface, however this time the reminiscence clocks in at 18Gbps, up from 16Gbps. This offers a reminiscence bandwidth of 432 GB/s, although AMD claims an ‘efficient’ bandwidth of 1995.3 GB/s as a result of 64MB of 2nd Gen Infinity cache.
Power draw for the RX 7700 XT is rated at 245W Total Board Power (TBP), although AMD identified to us that that is an ‘as much as’ determine. We are utilizing our well-established GPU energy testing methodology on this overview, so learn on for our most detailed energy and effectivity testing but.
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