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 R7 M340
CORE STATE
Meso
VRAM
2 GB
CLOCK SPEED
1021 MHz
TDP
—
BUS WIDTH
64 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7790
R7 M340
Core Specs
Shading Units
896
320
-64.3%
Shaders
896
320
-64.3%
TMUs
56
20
-64.3%
ROPs
16
8
-50.0%
Compute Units
14
5
-64.3%
Clocks
Base Clock
—
943 MHz
Boost Clock
—
1021 MHz
GPU Clock
1000 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1000 MHz
2 Gbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
64 bit
Bandwidth
96.00 GB/s
16.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
128 KB
Performance
Pixel Rate
16.00 GPixel/s
8.168 GPixel/s
Texture Rate
56.00 GTexel/s
20.42 GTexel/s
FP32 (TFLOPS)
1.792 TFLOPS
653.4 GFLOPS
FP64 (TFLOPS)
112.0 GFLOPS (1:16)
40.84 GFLOPS (1:16)
FP16 (TFLOPS)
—
653.4 GFLOPS (1:1)
Power
TDP
85 W
—
TDP (W)
85
—
Suggested PSU
250 W
—
Power Connectors
1x 6-pin
—
Architecture
Architecture
GCN 2.0
GCN 3.0
GPU Name
Bonaire
Meso
Generation
Southern Islands
(HD 7700)
Gem System
(R7 M300)
Process Size
28 nm
28 nm
Transistors
2,080 million
1,550 million
Die Size
160 mm²
125 mm²
Foundry
TSMC
TSMC
Density
13.0M / mm²
12.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1
2.1
Shader Model
6.5
6.5
Physical
Slot Width
Dual-slot
—
Length
183 mm
7.2 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
—
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Other
Launch Price
149 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Solar System
Successor
Sea Islands
Polaris Mobile