GPU Comparison
RADEON
AMD Radeon HD 7790
CORE STATE
Bonaire
VRAM
1024 MB
CLOCK SPEED
—
TDP
85 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
RADEON
Radeon RX 6900 XT
CORE STATE
Navi 21
VRAM
16 GB
CLOCK SPEED
2250 MHz
TDP
300 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2020
PERFORMANCE BENCHMARKS
geekbench_metal
3dmark_3dmark_steel_nomad_dx12
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7790
RX 6900 XT
Core Specs
Shading Units
896
5,120
+471.4%
Shaders
896
5,120
+471.4%
TMUs
56
320
+471.4%
ROPs
16
128
+700.0%
Compute Units
14
80
+471.4%
Clocks
Base Clock
—
1825 MHz
Boost Clock
—
2250 MHz
GPU Clock
1000 MHz
—
Game Clock
—
2015 MHz
Memory Clock
1500 MHz
6 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
1024 MB
16 GB
VRAM (MB)
1,024
16,384
+1500.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
256 bit
Bandwidth
96.00 GB/s
512.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
256 KB
4 MB
L3 Cache
—
128 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
16.00 GPixel/s
288.0 GPixel/s
Texture Rate
56.00 GTexel/s
720.0 GTexel/s
FP32 (TFLOPS)
1.792 TFLOPS
23.04 TFLOPS
FP64 (TFLOPS)
112.0 GFLOPS (1:16)
1,440.0 GFLOPS (1:16)
FP16 (TFLOPS)
—
46.08 TFLOPS (2:1)
AI/RT
RT Cores
—
80
Power
TDP
85 W
300 W
TDP (W)
85
300
+252.9%
Suggested PSU
250 W
700 W
Power Connectors
1x 6-pin
2x 8-pin
Architecture
Architecture
GCN 2.0
RDNA 2.0
GPU Name
Bonaire
Navi 21
Generation
Southern Islands
(HD 7700)
Navi II
(RX 6000)
Process Size
28 nm
7 nm
Transistors
2,080 million
26,800 million
Die Size
160 mm²
520 mm²
Foundry
TSMC
TSMC
Density
13.0M / mm²
51.5M / mm²
API Support
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1
2.1
Shader Model
6.5
6.8
Physical
Slot Width
Dual-slot
Triple-slot
Length
183 mm
7.2 inches
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Other
Launch Price
149 USD
999 USD
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Navi
Successor
Sea Islands
Navi III