AMD Radeon HD 6990 vs AMD Radeon RX 570
GPU · Specs Compare
Graphics Card
Release Date
Mar 2011
Apr 2017
Generation
Northern Islands
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1750 MHz
Base Clock
—
1168 MHz
Boost Clock
—
1244 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
224.0GB/s
Render Config
Compute Units
24
32
Shading Units
1536
2048
TMUs
96
128
ROPs
32
32
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
26.56 GPixel/s
39.81 GPixel/s
Texture Rate
79.68 GTexel/s
159.2 GTexel/s
FP32 (float)
2.550 TFLOPS
5.095 TFLOPS
FP64 (double)
637.4 GFLOPS
318.5 GFLOPS
FP16 (half)
—
5.095 TFLOPS
Graphics Processor
GPU Name
Antilles
Polaris 20
GPU Variant
Antilles XT(215-0807027)
Polaris 20 XL(215-0910052)
Architecture
TeraScale 3
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
40 nm
14 nm
Transistors
2.64 billion
5.7 billion
Die Size
389 mm²
232 mm²
Board Design
TDP
375W
150W
Suggested PSU
750 W
450 W
Outputs
1x DVI4x mini-DisplayPort 1.2
1x DVI1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
2x 8-pin
1x 6-pin
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2
Shader Model
5.0
6.4
Benchmark
3DMark Time Spy
—
3,851
3DMark Time Spy Extreme
—
1,770
Battlefield 5 1080p
—
69
Shadow of the Tomb Raider 2160p
—
18
Shadow of the Tomb Raider 1440p
—
34
Shadow of the Tomb Raider 1080p
—
52
Battlefield 5 2160p
—
27
Battlefield 5 1440p
—
51
GTA 5 1080p
—
100
▲ Specs Compare
Data sourced from official specifications and benchmark tests.