GPU Comparison
RADEON
AMD Radeon 540
CORE STATE
Lexa
VRAM
1024 MB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
32 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
VS
RADEON
Radeon HD 7950
CORE STATE
Tahiti
VRAM
3 GB
CLOCK SPEED
—
TDP
200 W
BUS WIDTH
384 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
540
HD 7950
Core Specs
Shading Units
384
1,792
+366.7%
Shaders
384
1,792
+366.7%
TMUs
24
112
+366.7%
ROPs
16
32
+100.0%
Compute Units
6
28
+366.7%
Clocks
GPU Clock
1183 MHz
800 MHz
Memory Clock
1500 MHz
6 Gbps effective
1250 MHz
5 Gbps effective
Memory
Memory Size
1024 MB
3 GB
VRAM (MB)
1,024
3,072
+200.0%
Memory Type
GDDR5
GDDR5
Memory Bus
32 bit
384 bit
Bandwidth
24.00 GB/s
240.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Performance
Pixel Rate
18.93 GPixel/s
25.60 GPixel/s
Texture Rate
28.39 GTexel/s
89.60 GTexel/s
FP32 (TFLOPS)
908.5 GFLOPS
2.867 TFLOPS
FP64 (TFLOPS)
56.78 GFLOPS (1:16)
716.8 GFLOPS (1:4)
FP16 (TFLOPS)
908.5 GFLOPS (1:1)
—
Power
TDP
50 W
200 W
TDP (W)
50
200
+300.0%
Suggested PSU
250 W
550 W
Power Connectors
None
2x 6-pin
Architecture
Architecture
GCN 4.0
GCN 1.0
GPU Name
Lexa
Tahiti
Generation
Polaris
(RX 500)
Southern Islands
(HD 7900)
Process Size
14 nm
28 nm
Transistors
2,200 million
4,313 million
Die Size
103 mm²
352 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.3M / mm²
API Support
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.170
OpenCL
2.1
2.1 (1.2)
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
Single-slot
Dual-slot
Length
—
278 mm
10.9 inches
Height
—
111 mm
4.4 inches
Outputs
2x DisplayPort 1.4a
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Launch Price
—
449 USD
Production
End-of-life
End-of-life
Predecessor
Arctic Islands
Northern Islands
Successor
Vega
Sea Islands